{"id":8596,"date":"2025-06-22T20:34:21","date_gmt":"2025-06-22T20:34:21","guid":{"rendered":"https:\/\/elfsight.com\/ja\/?p=8596"},"modified":"2025-06-23T12:22:44","modified_gmt":"2025-06-23T12:22:44","slug":"how-to-make-a-simple-html-calculator","status":"publish","type":"post","link":"https:\/\/elfsight.com\/ja\/blog\/how-to-make-a-simple-html-calculator\/","title":{"rendered":"\u30b7\u30f3\u30d7\u30eb\u306aHTML\u96fb\u5353\u306e\u4f5c\u308a\u65b9"},"content":{"rendered":"<div class=\"table-of-contents\">\r\n\t\t\t<div class=\"table-of-contents-title\">Contents<\/div>\r\n\t\t\t<ol class=\"table-of-contents-list\"><li class=\"table-of-contents-list-item\"><a href=\"#create-html\" data-scroll-to=\"create-html\">HTML\u3067\u8a08\u7b97\u6a5f\u3092\u4f5c\u308b\u65b9\u6cd5<\/a><\/li><li class=\"table-of-contents-list-item\"><a href=\"#complex\" data-scroll-to=\"complex\">\u8907\u96d1\u306a\u8a08\u7b97\u7528\u306e\u8a08\u7b97\u6a5f\u306e\u4f5c\u308a\u65b9<\/a><\/li><li class=\"table-of-contents-list-item\"><a href=\"#make-widget\" data-scroll-to=\"make-widget\">HTML\u8a08\u7b97\u6a5f\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u306e\u4f5c\u6210\uff1a\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u4e0d\u8981<\/a><\/li><li class=\"table-of-contents-list-item\"><a href=\"#examples\" data-scroll-to=\"examples\">HTML\u3067\u4f5c\u308b\u8a08\u7b97\u6a5f\u306e\u4f8b<\/a><\/li><li class=\"table-of-contents-list-item\"><a href=\"#final\" data-scroll-to=\"final\">\u307e\u3068\u3081<\/a><\/li><li class=\"table-of-contents-list-item\"><a href=\"#editor\" data-scroll-to=\"editor\">\u7de8\u96c6\u8005\uff1a\u7121\u6599\u3067HTML\u8a08\u7b97\u6a5f\u3092\u4f5c\u6210<\/a><\/li><\/ol>\r\n\t\t<\/div>\n<h2 id=\"create-html\">HTML\u3067\u8a08\u7b97\u6a5f\u3092\u4f5c\u308b\u65b9\u6cd5<\/h2><p>\u8db3\u3057\u7b97\u3001\u5f15\u304d\u7b97\u3001\u639b\u3051\u7b97\u3001\u5272\u308a\u7b97\u3068\u3044\u3063\u305f\u57fa\u672c\u7684\u306a\u6a5f\u80fd\u3092\u5099\u3048\u305f\u30b7\u30f3\u30d7\u30eb\u3067\u624b\u65e9\u3044\u8a08\u7b97\u6a5f\u304c\u5fc5\u8981\u306a\u3089\u3001\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u4f7f\u3063\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u306e\u8a08\u7b97\u6a5f\u306eHTML\u30b3\u30fc\u30c9\u3092\u3042\u306a\u305f\u306eHTML\u30d5\u30a1\u30a4\u30eb\u306b\u5165\u308c\u3066\u3001\u52d5\u4f5c\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u30b3\u30fc\u30c9\u5185\u306b\u306f\u52d5\u4f5c\u306e\u4ed5\u7d44\u307f\u3084\u30b9\u30bf\u30a4\u30eb\u3084\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u5909\u66f4\u65b9\u6cd5\u304c\u308f\u304b\u308b\u30b3\u30e1\u30f3\u30c8\u3082\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p><pre class=\"wp-block-code\"><code>&lt;!DOCTYPE html&gt;&lt;html lang=\"en\"&gt;&lt;head&gt;  &lt;meta charset=\"UTF-8\"&gt;  &lt;meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"&gt;  &lt;title&gt;Simple Calculator&lt;\/title&gt;  &lt;style&gt;    \/* \u30da\u30fc\u30b8\u5168\u4f53\u306e\u30b9\u30bf\u30a4\u30eb\u3001\u8a08\u7b97\u6a5f\u3092\u4e2d\u592e\u306b\u914d\u7f6e *\/    body {      font-family: Arial, sans-serif;      display: flex;      justify-content: center;      align-items: center;      height: 100vh;      background-color: #f0f0f0;    }    \/* \u8a08\u7b97\u6a5f\u30b3\u30f3\u30c6\u30ca\u306e\u30b9\u30bf\u30a4\u30eb *\/    .calculator {      background-color: white;      padding: 20px;      border-radius: 10px;      box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);    }    \/* \u8868\u793a\u30a8\u30ea\u30a2\u306e\u30b9\u30bf\u30a4\u30eb *\/    .display {      width: 160px;      height: 40px;      text-align: right;      margin-bottom: 10px;      font-size: 1.5em;      padding: 5px;    }    \/* \u8a08\u7b97\u6a5f\u30dc\u30bf\u30f3\u306e\u30b0\u30ea\u30c3\u30c9\u30ec\u30a4\u30a2\u30a6\u30c8 *\/    .buttons {      display: grid;      grid-template-columns: repeat(4, 40px);      gap: 10px;    }    \/* \u30dc\u30bf\u30f3\u306e\u30b9\u30bf\u30a4\u30eb *\/    .buttons button {      width: 40px;      height: 40px;      font-size: 1.2em;      border: none;      background-color: #4CAF50;      color: white;      border-radius: 5px;      cursor: pointer;    }    \/* \u30dc\u30bf\u30f3\u306e\u30db\u30d0\u30fc\u52b9\u679c *\/    .buttons button:hover {      background-color: #45a049;    }    \/* \u30a4\u30b3\u30fc\u30eb\u30dc\u30bf\u30f3\u306e\u7279\u5225\u306a\u30b9\u30bf\u30a4\u30eb *\/    .buttons .equals {      grid-column: span 2; \/* 2\u5217\u5206\u3092\u5360\u3081\u308b *\/      background-color: #2196F3;    }    \/* \u30a4\u30b3\u30fc\u30eb\u30dc\u30bf\u30f3\u306e\u30db\u30d0\u30fc\u52b9\u679c *\/    .buttons .equals:hover {      background-color: #0b7dda;    }  &lt;\/style&gt;&lt;\/head&gt;&lt;body&gt;  &lt;div class=\"calculator\"&gt;    &lt;!-- \u8a08\u7b97\u7d50\u679c\u3092\u8868\u793a\u3059\u308b\u5165\u529b\u30d5\u30a3\u30fc\u30eb\u30c9 --&gt;    &lt;input type=\"text\" class=\"display\" id=\"display\" disabled&gt;        &lt;!-- \u30b0\u30ea\u30c3\u30c9\u3067\u914d\u7f6e\u3055\u308c\u305f\u8a08\u7b97\u6a5f\u30dc\u30bf\u30f3 --&gt;    &lt;div class=\"buttons\"&gt;      &lt;button onclick=\"appendNumber('1')\"&gt;1&lt;\/button&gt;      &lt;button onclick=\"appendNumber('2')\"&gt;2&lt;\/button&gt;      &lt;button onclick=\"appendNumber('3')\"&gt;3&lt;\/button&gt;      &lt;button onclick=\"setOperator('+')\"&gt;+&lt;\/button&gt;      &lt;button onclick=\"appendNumber('4')\"&gt;4&lt;\/button&gt;      &lt;button onclick=\"appendNumber('5')\"&gt;5&lt;\/button&gt;      &lt;button onclick=\"appendNumber('6')\"&gt;6&lt;\/button&gt;      &lt;button onclick=\"setOperator('-')\"&gt;-&lt;\/button&gt;      &lt;button onclick=\"appendNumber('7')\"&gt;7&lt;\/button&gt;      &lt;button onclick=\"appendNumber('8')\"&gt;8&lt;\/button&gt;      &lt;button onclick=\"appendNumber('9')\"&gt;9&lt;\/button&gt;      &lt;button onclick=\"setOperator('*')\"&gt;*&lt;\/button&gt;      &lt;button onclick=\"clearDisplay()\"&gt;C&lt;\/button&gt;      &lt;button onclick=\"appendNumber('0')\"&gt;0&lt;\/button&gt;      &lt;button onclick=\"calculate()\" class=\"equals\"&gt;=&lt;\/button&gt;      &lt;button onclick=\"setOperator('\/')\"&gt;\/&lt;\/button&gt;    &lt;\/div&gt;  &lt;\/div&gt;  &lt;script&gt;    \/* \u73fe\u5728\u306e\u5165\u529b\u3001\u524d\u306e\u5165\u529b\u3001\u6f14\u7b97\u5b50\u3092\u4fdd\u5b58\u3059\u308b\u5909\u6570 *\/    let currentInput = '';    let operator = '';    let previousInput = '';    \/* \u6570\u5b57\u3092\u73fe\u5728\u306e\u5165\u529b\u306b\u8ffd\u52a0\u3059\u308b\u95a2\u6570 *\/    function appendNumber(number) {      currentInput += number; \/\/ \u30af\u30ea\u30c3\u30af\u3055\u308c\u305f\u6570\u5b57\u3092\u73fe\u5728\u306e\u5165\u529b\u306b\u8ffd\u52a0      document.getElementById('display').value = currentInput; \/\/ \u8868\u793a\u3092\u66f4\u65b0    }    \/* \u6f14\u7b97\u5b50\u3092\u8a2d\u5b9a\u3057\u3001\u6b21\u306e\u5165\u529b\u306b\u5099\u3048\u308b\u95a2\u6570 *\/    function setOperator(op) {      operator = op; \/\/ \u9078\u629e\u3055\u308c\u305f\u6f14\u7b97\u5b50\u3092\u4fdd\u5b58      previousInput = currentInput; \/\/ \u73fe\u5728\u306e\u5165\u529b\u3092\u524d\u306e\u5165\u529b\u3068\u3057\u3066\u4fdd\u5b58      currentInput = ''; \/\/ \u6b21\u306e\u6570\u5b57\u306e\u305f\u3081\u306b\u73fe\u5728\u306e\u5165\u529b\u3092\u30af\u30ea\u30a2    }    \/* \u6f14\u7b97\u5b50\u306b\u57fa\u3065\u3044\u3066\u8a08\u7b97\u3092\u5b9f\u884c\u3059\u308b\u95a2\u6570 *\/    function calculate() {      let result;      \/\/ \u6f14\u7b97\u5b50\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u8a08\u7b97\u3092\u5b9f\u884c      if (operator === '+') {        result = parseFloat(previousInput) + parseFloat(currentInput);      } else if (operator === '-') {        result = parseFloat(previousInput) - parseFloat(currentInput);      } else if (operator === '*') {        result = parseFloat(previousInput) * parseFloat(currentInput);      } else if (operator === '\/') {        result = parseFloat(previousInput) \/ parseFloat(currentInput);      }      document.getElementById('display').value = result; \/\/ \u7d50\u679c\u3092\u8868\u793a      currentInput = result.toString(); \/\/ \u7d50\u679c\u3092\u65b0\u3057\u3044\u73fe\u5728\u306e\u5165\u529b\u3068\u3057\u3066\u4fdd\u5b58      operator = ''; \/\/ \u6f14\u7b97\u5b50\u3092\u30ea\u30bb\u30c3\u30c8    }    \/* \u8868\u793a\u3092\u30af\u30ea\u30a2\u3057\u3001\u8a08\u7b97\u6a5f\u3092\u30ea\u30bb\u30c3\u30c8\u3059\u308b\u95a2\u6570 *\/    function clearDisplay() {      currentInput = '';      previousInput = '';      operator = '';      document.getElementById('display').value = ''; \/\/ \u8868\u793a\u3092\u30af\u30ea\u30a2    }  &lt;\/script&gt;&lt;\/body&gt;&lt;\/html&gt;<\/code><\/pre><h3 class=\"wp-block-heading\">\u4e3b\u8981\u30bb\u30af\u30b7\u30e7\u30f3\u306e\u8aac\u660e<\/h3><p>\u8a08\u7b97\u6a5f\u306e\u7ba1\u7406\u3084\u8abf\u6574\u3092\u3057\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u306b\u3001\u6a5f\u80fd\u306b\u3064\u3044\u3066\u306e\u8aac\u660e\u3092\u8ffd\u52a0\u3057\u307e\u3057\u305f\uff1a<\/p><h4 class=\"wp-block-heading\">HTML\u69cb\u9020<\/h4><ul class=\"wp-block-list\"><li>\u8a08\u7b97\u6a5f\u306f <em>calculator<\/em> \u30af\u30e9\u30b9\u306ediv\u8981\u7d20\u5185\u306b\u53ce\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/li><li><em>input<\/em> \u8981\u7d20\u304c\u8a08\u7b97\u6a5f\u306e\u8868\u793a\u7528\u306b\u4f7f\u308f\u308c\u3066\u304a\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u76f4\u63a5\u5165\u529b\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u7121\u52b9\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/li><li>\u30dc\u30bf\u30f3\u306f <em>buttons<\/em> div\u3067\u30b0\u30ea\u30c3\u30c9\u5f62\u5f0f\u306b\u6574\u7406\u3055\u308c\u3001\u8a08\u7b97\u6a5f\u306e\u5f62\u306b\u914d\u7f6e\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/li><\/ul><h4 class=\"wp-block-heading\">CSS\u30b9\u30bf\u30a4\u30ea\u30f3\u30b0<\/h4><ul class=\"wp-block-list\"><li>\u30da\u30fc\u30b8\u306ebody\u306f\u8a08\u7b97\u6a5f\u3092\u7e26\u6a2a\u4e2d\u592e\u306b\u914d\u7f6e\u3059\u308b\u3088\u3046\u306b\u30b9\u30bf\u30a4\u30eb\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/li><li>\u8a08\u7b97\u6a5f\u672c\u4f53\u306f\u767d\u80cc\u666f\u3067\u89d2\u304c\u4e38\u304f\u3001\u30ab\u30fc\u30c9\u306e\u3088\u3046\u306a\u5f71\u304c\u4ed8\u3051\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/li><li>\u30dc\u30bf\u30f3\u306f\u30b5\u30a4\u30ba\u3084\u8272\u304c\u7d71\u4e00\u3055\u308c\u3001\u30db\u30d0\u30fc\u6642\u306b\u8996\u899a\u7684\u306a\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u304c\u3042\u308b\u3088\u3046\u306b\u30c7\u30b6\u30a4\u30f3\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/li><\/ul><h4 class=\"wp-block-heading\">JavaScript\u306e\u6a5f\u80fd<\/h4><ul class=\"wp-block-list\"><li><em>appendNumber()<\/em> \u306f\u30e6\u30fc\u30b6\u30fc\u304c\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u305f\u3068\u304d\u306b\u6570\u5b57\u3092\u8868\u793a\u306b\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/li><li><em>setOperator()<\/em> \u306f\u9078\u629e\u3055\u308c\u305f\u6f14\u7b97\u5b50\uff08\uff0b\u3001\u2212\u3001\uff0a\u3001\uff0f\uff09\u3092\u4fdd\u5b58\u3057\u3001\u73fe\u5728\u306e\u5165\u529b\u3092\u524d\u306e\u5165\u529b\u3068\u3057\u3066\u8a18\u61b6\u3057\u307e\u3059\u3002<\/li><li><em>calculate()<\/em> \u306f\u9078\u629e\u3055\u308c\u305f\u6f14\u7b97\u5b50\u306b\u57fa\u3065\u3044\u3066\u8a08\u7b97\u3092\u884c\u3044\u3001\u7d50\u679c\u3092\u8868\u793a\u3057\u307e\u3059\u3002<\/li><li><em>clearDisplay()<\/em> \u306f\u3059\u3079\u3066\u306e\u5165\u529b\u3068\u8868\u793a\u3092\u30af\u30ea\u30a2\u3057\u3066\u8a08\u7b97\u6a5f\u3092\u30ea\u30bb\u30c3\u30c8\u3057\u307e\u3059\u3002<\/li><\/ul><p>\u3053\u308c\u306f\u57fa\u672c\u7684\u306aHTML\u3001CSS\u3001JS\u3092\u4f7f\u3063\u305f\u30b7\u30f3\u30d7\u30eb\u306a\u8a08\u7b97\u6a5f\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u898b\u305f\u76ee\u3084\u6a5f\u80fd\u306f\u304b\u306a\u308a\u9650\u5b9a\u7684\u3067\u3059\u3002<\/p><figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/elfsight.com\/wp-content\/uploads\/2024\/10\/blog-how-to-create-simple-calculator-html-basic.jpg\" alt=\"Simple HTML Calculator\" class=\"wp-image-91907\" \/><\/figure><h2 id=\"complex\">\u8907\u96d1\u306a\u8a08\u7b97\u7528\u306e\u8a08\u7b97\u6a5f\u306e\u4f5c\u308a\u65b9<\/h2><p>\u4e0a\u8a18\u306e\u30b7\u30f3\u30d7\u30eb\u306aHTML\u8a08\u7b97\u6a5f\u306f\u57fa\u672c\u7684\u306a\u64cd\u4f5c\u306b\u9069\u3057\u3066\u304a\u308a\u3001\u30b7\u30f3\u30d7\u30eb\u3067\u6a5f\u80fd\u7684\u306a\u30c7\u30b6\u30a4\u30f3\u3067\u3059\u3002\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u5b66\u7fd2\u306e\u9032\u6357\u3092\u78ba\u8a8d\u3057\u305f\u308a\u3001\u3061\u3087\u3063\u3068\u3057\u305f\u904a\u3073\u306b\u4f7f\u3046\u306e\u306b\u826f\u3044\u3067\u3057\u3087\u3046\u3002\u3057\u304b\u3057\u3001\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30eb\u306a\u7528\u9014\u3084\u3088\u308a\u8907\u96d1\u306a\u8a08\u7b97\u306b\u306f\u3001\u3088\u308a\u9ad8\u5ea6\u306a\u3082\u306e\u304c\u5fc5\u8981\u306b\u306a\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u5bb6\u8a08\u306e\u4e88\u7b97\u3092\u7acb\u3066\u305f\u308a\u65c5\u884c\u306e\u8a08\u753b\u3092\u3057\u305f\u308a\u3059\u308b\u5834\u5408\u3001\u8a08\u7b97\u6a5f\u80fd\u304c\u5145\u5b9f\u3057\u3066\u3044\u308b\u3068\u5927\u304d\u306a\u52a9\u3051\u306b\u306a\u308a\u307e\u3059\u3002\u3067\u306f\u3001\u3069\u3093\u306a\u9078\u629e\u80a2\u304c\u3042\u308b\u3067\u3057\u3087\u3046\u304b\uff1f<\/p><h3 class=\"wp-block-heading\">\u3055\u3089\u306b\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u5b66\u3076<\/h3><p>\u3088\u308a\u8907\u96d1\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u53d6\u308a\u7d44\u3080\u6700\u5584\u306e\u65b9\u6cd5\u306f\u3001HTML\u3001CSS\u3001JavaScript\u3092\u3055\u3089\u306b\u6df1\u304f\u5b66\u3076\u3053\u3068\u3067\u3059\u3002\u9ad8\u5ea6\u306a\u77e5\u8b58\u304c\u3042\u308c\u3070\u3001\u8907\u6570\u306e\u5165\u529b\u6b04\u3084\u30aa\u30d7\u30b7\u30e7\u30f3\u3001\u6761\u4ef6\u3001\u5909\u6570\u3092\u4f7f\u3063\u305f\u8a08\u7b97\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u305d\u306e\u6642\u70b9\u3067\u3001\u5358\u306a\u308b\u57fa\u672c\u7684\u306aHTML\u8a08\u7b97\u6a5f\u3092\u4f5c\u308b\u4ee5\u4e0a\u306e\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30b9\u30ad\u30eb\u3092\u8eab\u306b\u3064\u3051\u3066\u3044\u308b\u3067\u3057\u3087\u3046\u3002\u9053\u306e\u308a\u306f\u9577\u3044\u3067\u3059\u304c\u3002<\/p><h3 class=\"wp-block-heading\">\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u4e0d\u8981\u306eHTML\u8a08\u7b97\u6a5f\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u3092\u8a66\u3059<\/h3><p>\u3082\u3057\u307e\u3060\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30b9\u30ad\u30eb\u304c\u5341\u5206\u3067\u306a\u304f\u3001\u4eca\u3059\u3050\u5f37\u529b\u306a\u89e3\u6c7a\u7b56\u304c\u5fc5\u8981\u306a\u3089\u3001\u6717\u5831\u3067\u3059\u3002\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u4e0d\u8981\u3067\u30ab\u30b9\u30bf\u30e0\u306e<a href=\"https:\/\/elfsight.com\/calculator-form-widget\/html\/\" target=\"_blank\" rel=\"noreferrer noopener\">HTML\u8a08\u7b97\u6a5f\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8<\/a>\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u591a\u6570\u306e\u5165\u529b\u6b04\u3092\u8ffd\u52a0\u3057\u3001\u6761\u4ef6\u3092\u8abf\u6574\u3057\u3001\u30b7\u30ca\u30ea\u30aa\u306b\u5408\u308f\u305b\u3066\u308f\u304b\u308a\u3084\u3059\u304f\u540d\u524d\u3092\u4ed8\u3051\u3089\u308c\u307e\u3059\u3002\u7d9a\u3051\u308b\u524d\u306b\u3001\u4e0b\u306e\u30a8\u30c7\u30a3\u30bf\u30fc\u3067\u305c\u3072\u8a66\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p><section class=\"application-demo header-blind-spot section\" id=\"demo\" data-nav-section=\"demo\"><div class=\"application-demo-container\">\n                        <div class=\"application-demo-iframe-container\">\n                            <div class=\"application-demo-control-enter-fullscreen application-demo-control\" title=\"Full Screen\">\n                                <svg>\n                                    <use xlink:href=\"#icon-maximize\"><\/use>\n                                <\/svg>\n                            <\/div>\n                            \n                            <div class=\"application-demo-control-exit-fullscreen application-demo-control application-demo-control-hidden\" title=\"Exit Full Screen\">\n                                <svg>\n                                    <use xlink:href=\"#icon-minimize\"><\/use>\n                                <\/svg>\n                            <\/div>\n\n                            <div class=\"application-demo-iframe-wrapper\">\n                                <iframe class=\"application-demo-iframe\" data-src=\"https:\/\/dash.elfsight.com\/demo\/calculator?language=ja\" title=\"\u4eca\u3059\u3050\u3042\u306a\u305f\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u3092\u8ffd\u52a0\u3057\u307e\u3057\u3087\u3046\uff01\" frameborder=\"0\" name=\"preview\" loading=\"lazy\" allow=\"autoplay; fullscreen\"><\/iframe>\n                            <\/div>\n                        <\/div>\n                    <\/div><\/section>\n<h2 id=\"make-widget\">HTML\u8a08\u7b97\u6a5f\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u306e\u4f5c\u6210\uff1a\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u4e0d\u8981<\/h2><p>\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u30ab\u30b9\u30bf\u30e0HTML\u8a08\u7b97\u6a5f\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u306e\u4f5c\u6210\u65b9\u6cd5\u3092\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u3069\u3093\u306a\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u3082\u7c21\u5358\u306b\u57cb\u3081\u8fbc\u3081\u3066\u3059\u3050\u306b\u4f7f\u3048\u307e\u3059\u3002\u3055\u3042\u3001\u3069\u3046\u3084\u3063\u3066\u4f5c\u308b\u306e\u304b\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p><ol><li><strong>\u9069\u5207\u306a\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u9078\u3076\u3002<\/strong> \u4e0a\u3067\u898b\u305f\u30a8\u30c7\u30a3\u30bf\u30fc\u3092\u4f7f\u3044\u7d9a\u3051\u308b\u304b\u3001<a href=\"https:\/\/elfsight.com\/calculator-form-widget\/templates\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u4e8b\u524d\u30c7\u30b6\u30a4\u30f3\u3055\u308c\u305f\u8a08\u7b97\u6a5f\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u4e00\u89a7<\/a>\u304b\u3089\u3042\u306a\u305f\u306e\u30b1\u30fc\u30b9\u306b\u6700\u3082\u5408\u3046\u3082\u306e\u3092\u9078\u3073\u307e\u3057\u3087\u3046\u3002<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/elfsight.com\/wp-content\/uploads\/2024\/09\/blog-how-to-create-custom-calculator-for-website-1-1-1024x851.jpg\" alt=\"Choose a website calculator template\" class=\"wp-image-91743\" \/><\/figure><\/li><li><strong>\u5fc5\u8981\u306a\u5165\u529b\u6b04\u3092\u8ffd\u52a0\u3059\u308b\u3002<\/strong> \u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u306f\u30b9\u30e9\u30a4\u30c0\u30fc\u3001\u6570\u5b57\u3001\u9078\u629e\u80a2\u3001\u30c9\u30ed\u30c3\u30d7\u30c0\u30a6\u30f3\u306a\u3069\u591a\u5f69\u306a\u5165\u529b\u6b04\u3092\u63d0\u4f9b\u3057\u3001\u30b7\u30ca\u30ea\u30aa\u3092\u6b63\u78ba\u306b\u8868\u73fe\u3067\u304d\u307e\u3059\u3002<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/elfsight.com\/wp-content\/uploads\/2024\/09\/blog-how-to-create-custom-calculator-for-website-2-1-1024x851.jpg\" alt=\"Add calculator fields\" class=\"wp-image-91744\" \/><\/figure><\/li><li><strong>\u30b9\u30bf\u30a4\u30eb\u3092\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3059\u308b\u3002<\/strong> \u30a8\u30c7\u30a3\u30bf\u30fc\u306e\u300c\u30b9\u30bf\u30a4\u30eb\u300d\u30bf\u30d6\u3067\u8a08\u7b97\u6a5f\u306e\u898b\u305f\u76ee\u3092\u8abf\u6574\u3057\u3001\u597d\u307f\u3084\u30d6\u30e9\u30f3\u30c9\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u8272\u306b\u5408\u308f\u305b\u307e\u3057\u3087\u3046\u3002<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/elfsight.com\/wp-content\/uploads\/2024\/09\/blog-how-to-create-custom-calculator-for-website-3-2-1024x851.jpg\" alt=\"Customize the design of a website calculator\" class=\"wp-image-91745\" \/><\/figure><\/li><li><strong>\u305d\u306e\u4ed6\u306e\u8a2d\u5b9a\u3092\u8abf\u6574\u3059\u308b\u3002<\/strong> \u300c\u8a2d\u5b9a\u300d\u30bf\u30d6\u3067\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u306e\u6700\u7d42\u8abf\u6574\u3092\u884c\u3044\u3001\u533a\u5207\u308a\u6587\u5b57\u3084\u30eb\u30fc\u30eb\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u500b\u4eba\u7684\u306aHTML\u3084JS\u306e\u30a2\u30a4\u30c7\u30a2\u304c\u3042\u308c\u3070\u3001\u3053\u3053\u3067\u30b3\u30fc\u30c9\u3092\u633f\u5165\u3067\u304d\u307e\u3059\u3002<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/elfsight.com\/wp-content\/uploads\/2024\/09\/blog-how-to-create-custom-calculator-for-website-4-1-1024x851.jpg\" alt=\"Change settings of the calculator widget\" class=\"wp-image-91746\" \/><\/figure><\/li><li><strong>\u4fdd\u5b58\u3057\u3066\u4f7f\u3044\u59cb\u3081\u308b\u3002<\/strong> \u7d50\u679c\u306b\u6e80\u8db3\u3057\u305f\u3089\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u3092\u516c\u958b\u3057\u3001\u8a08\u7b97\u6a5f\u306eHTML\u30b3\u30fc\u30c9\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002\u6570\u884c\u306e\u30b3\u30fc\u30c9\u3092\u4efb\u610f\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306b\u8ffd\u52a0\u3059\u308b\u3060\u3051\u3067\u4f7f\u3048\u307e\u3059\u3002<\/li><\/ol><p>\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u4e0a\u3067\u3001\u3053\u306eHTML\u8a08\u7b97\u6a5f\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u3092\u5fc5\u8981\u306a\u3060\u3051\u4f7f\u3048\u307e\u3059\u3002\u8cbb\u7528\u3084\u8caf\u84c4\u306e\u8a08\u753b\u3001\u5546\u7528\u30b5\u30fc\u30d3\u30b9\u306e\u30d7\u30ed\u30e2\u30fc\u30b7\u30e7\u30f3\u3001\u30d6\u30ed\u30b0\u306e\u30a4\u30f3\u30bf\u30e9\u30af\u30c6\u30a3\u30d6\u5316\u306a\u3069\u306b\u6d3b\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<a href=\"https:\/\/elfsight.com\/blog\/how-to-create-a-custom-calculator-for-a-website\/#builders\" target=\"_blank\" rel=\"noreferrer noopener\">\u4e3b\u8981CMS\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3078\u306e\u8a08\u7b97\u6a5f\u8ffd\u52a0\u65b9\u6cd5<\/a>\u306e\u7c21\u5358\u306a\u30de\u30cb\u30e5\u30a2\u30eb\u3084\u3001<a href=\"https:\/\/help.elfsight.com\/collection\/66-platforms\" target=\"_blank\" rel=\"noreferrer noopener\">\u5bfe\u5fdc\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u4e00\u89a7<\/a>\u3082\u3054\u89a7\u3044\u305f\u3060\u3051\u307e\u3059\u3002<\/p><h2 id=\"examples\">HTML\u3067\u4f5c\u308b\u8a08\u7b97\u6a5f\u306e\u4f8b<\/h2><p>\u3053\u3053\u3067\u306f\u3001\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306a\u3057\u30675\u301c10\u5206\u3067\u81ea\u5206\u3067\u4f5c\u308c\u308b\u8a08\u7b97\u6a5f\u306e\u4f8b\u3092\u3044\u304f\u3064\u304b\u7d39\u4ecb\u3057\u307e\u3059\u3002\u4f7f\u3044\u305f\u3044\u7528\u9014\u3092\u5ff5\u982d\u306b\u7f6e\u304d\u3001\u30a8\u30c7\u30a3\u30bf\u30fc\u3067\u4f5c\u6210\u3059\u308b\u3068\u304d\u306b\u3059\u3079\u3066\u306e\u30a2\u30a4\u30c7\u30a2\u3092\u30d5\u30a9\u30fc\u30e0\u306b\u76db\u308a\u8fbc\u3093\u3067\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p><div class=\"tip-yellow tip\">\u3053\u306e\u8a08\u7b97\u6a5f\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u306fAI\u642d\u8f09\u3067\u3059\u3002\u8a08\u7b97\u3057\u305f\u3044\u5185\u5bb9\u3092\u4f1d\u3048\u308b\u3060\u3051\u3067\u3001\u5fc5\u8981\u306a\u5165\u529b\u6b04\u304c\u81ea\u52d5\u3067\u751f\u6210\u3055\u308c\u307e\u3059\u3002<\/div>\n<h3 class=\"wp-block-heading\">\u4f4f\u5b85\u30ed\u30fc\u30f3\u8a08\u7b97\u6a5f<\/h3><p>\u30ed\u30fc\u30f3\u91d1\u984d\u3001\u91d1\u5229\u3001\u671f\u9593\u306b\u57fa\u3065\u3044\u3066\u6708\u3005\u306e\u4f4f\u5b85\u30ed\u30fc\u30f3\u8fd4\u6e08\u984d\u3092\u7c21\u5358\u306b\u898b\u7a4d\u3082\u308c\u307e\u3059\u3002\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u53ef\u80fd\u306a<a href=\"https:\/\/elfsight.com\/calculator-form-widget\/templates\/mortgage-calculator\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u4f4f\u5b85\u30ed\u30fc\u30f3\u8a08\u7b97\u6a5f<\/a>\u3092\u304a\u8a66\u3057\u304f\u3060\u3055\u3044\u3002<\/p><figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/elfsight.com\/wp-content\/uploads\/2024\/10\/blog-how-to-create-custom-calculator-for-website-7-1024x851.jpg\" alt=\"Mortgage Calculator\" class=\"wp-image-91791\" \/><\/figure><h3 class=\"wp-block-heading\">ROI\u8a08\u7b97\u6a5f<\/h3><p>\u6295\u8cc7\u306e\u6f5c\u5728\u7684\u306a\u30ea\u30bf\u30fc\u30f3\u3092\u7c21\u5358\u306b\u8a08\u7b97\u3067\u304d\u308b\u3088\u3046\u306b\u30d3\u30b8\u30cd\u30b9\u3092\u652f\u63f4\u3057\u307e\u3059\u3002<a href=\"https:\/\/elfsight.com\/calculator-form-widget\/templates\/return-on-investment-calculator\/\" target=\"_blank\" rel=\"noreferrer noopener\">ROI\u8a08\u7b97\u6a5f<\/a>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p><figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/elfsight.com\/wp-content\/uploads\/2024\/10\/blog-how-to-create-custom-calculator-for-website-9-1024x851.jpg\" alt=\"ROI Calculator\" class=\"wp-image-91793\" \/><\/figure><h3 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