加权平均计算器/title> <meta name="description" content="在线加权平均计算器和计算。"> <style> #doc img { max-width:100%; } .calc td { white-space: nowrap; } .calc tbody tr td:first-child input[type=number] { width:100px; font-size:large; padding:5px; } .calc tbody tr td:nth-child(2) input[type=text] { width:160px; font-size:large; padding:5px; } .calc button { margin:10px auto; } @media all and (max-width: 576px) { .calc { padding:10px; width:100%; } .calc tbody tr td:nth-child(2) input[type=text] { width:calc(100% - 0px); } } @media all and (min-width: 577px) { .calc { padding:15px; } }</style>  <link rel="canonical" href="https://www.titaotie.com/calc/math/weighted-average-calculator.html" /> <script async src="../../assets/js/coun-w3.js" ></script>  <script async src="https://www.googletagmanager.com/gtag/js?id=G-3LS30VWYXF"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-3LS30VWYXF'); </script> <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-1832854270693044" crossorigin="anonymous"></script> <script> var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://hm.baidu.com/hm.js?ac0ee223cbf63018bf5c2c97c286c454"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(hm, s); })(); </script> <meta name="dateModified" content="2026-05-15"> </head> <body> <div id="header"> <div> <div id="logo" class="box"> <p> <a href="../../index.htm">无涯在线工具箱</a> </p> </div> </div> </div> <div id="wrapper"> <div id="nav">  <a href="../../index.htm">首页</a>/<a href="../index.html">计算器</a>/<a href="index.html">数学计算器</a>/加权平均计算器!-- #EndEditable --> </div> <div id="top-ad"> <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-1832854270693044" data-ad-slot="2671835991" data-ad-format="auto" data-full-width-responsive="true"></ins> </div> <div id="lcol"> <div id="doc">  <p class="doc-update">最后修改时间：2026年5月15日</p> <h1>加权平均计算器</h1> <p>加权平均计算器和计算。加权平均值计算器。</p> <form> <table id="tbl" class="calc"> <tr> <td>重量</td> <td>数值</td> </tr> <tbody> <tr> <td><input type="number" step="any" name="weight[]" autofocus></td> <td><input type="text" name="data[]"></td> </tr> <tr> <td colspan="2"> <button type="button" id="calc" title="计算" class="btn"><img src="../../assets/lib/icons/glyphicons_all/glyphicons_halflings/glyphicons_halflings_018_cog.png" tppabs="https://www.titaotie.com/assets/lib/icons/glyphicons_all/glyphicons_halflings/glyphicons_halflings-018-cog.png" alt=""> 计算</button> <button type="reset" id="reset" title="重置" class="btn"><img src="../../assets/lib/icons/glyphicons_all/glyphicons_halflings/glyphicons_halflings_013_remove.png" tppabs="https://www.titaotie.com/assets/lib/icons/glyphicons_all/glyphicons_halflings/glyphicons_halflings-013-remove.png" alt=""> 重置</button> <button type="button" id="addrow" title="Add row" class="btn"><img src="../../assets/lib/icons/glyphicons_all/glyphicons_halflings/glyphicons_halflings_097_plus.png" tppabs="https://www.titaotie.com/assets/lib/icons/glyphicons_all/glyphicons_halflings/glyphicons_halflings-097-plus.png" alt=""> 添加表</button> </td> </tr> <tr> <td colspan="2">加权平均）</td> </tr> <tr> <td colspan="2"><input type="text" id="avg" class="outtext" style="width:100%; padding:5px; font-size:large"></td> </tr> <tr> <td colspan="2">总重量：</td> </tr> <tr> <td colspan="2"><input type="text" id="sum" class="outtext" style="width:100%; padding:5px; font-size:large"></td> </tr> <tr id="row1"> <td colspan="2">计算方式）</td> </tr> <tr id="row2"> <td colspan="2"><textarea rows="3" id="TA1" tabindex="5" style="width:100%;" class="outtext mathsymbol" readonly></textarea></td> </tr> </tbody> </table> </form> <p><a href="average-calculator.html">平均计算器►</a></p> <h2>加权平均计算</h2> <p>的加权平均值（<em>X</em>）等于配重的乘积的总和（瓦特sub></sub>）倍的数据数目（sub></sub>由权重的总和除以）：</p> <p><img alt="加权平均" height="54" src="../../assets/calc/math/lib/weighted-average.png" tppabs="https://www.titaotie.com/assets/calc/math/lib/weighted-average.png" width="417"></p> <h3>例</h3> <p>找到班级成绩（等权重）的加权平均0,70,80,80,80,90。</p> <p>由于所有年级的权重相等，因此我们可以使用简单的平均值计算这些年级，也可以计算每个年级出现多少次并使用加权平均值。</p> <p class="mathsymbol">2×70,3×80,1×90</p> <p class="math"><span class="auto-style1"><em>x</em></span> =×70 + 3×80 + 1×90 + 3 + 1 470/6 = 78.33333</p> <p> </p> <p><a href="average-calculator.html">平均计算器►</a></p> <p> </p> <div id="bottom-ad_2"> </div><hr> <h2>另请参阅</h2> <ul class="seealso"> <li><a href="standard-deviation-calculator.html">标准差计算器</a></li> <li><a href="variance-calculator.html">方差计算器</a></li> <li><a href="../grade/grade-calculator.html">成绩计算器</a></li> <li><a href="../grade/gpa-calculator.html">GPA计算器</a></li> <li><a href="index.html">数学计算器</a></li> </ul> <script src="../../assets/ajax/libs/jquery/1.10.2/jquery.min.js" ></script> <script src="../../assets/calc/calc2.js" ></script> <script> var irow=0; $( document ).ready(function() { $("#calc").click( Calc ); $("#addrow").click( AddRow ); for(i=0; i<5; i++) AddRow(); }); function Calc() { var avg=0; var sum=0; var txt=txt1=txt2=''; for(var i=1; i<=irow+1; i++) { weight = $("#tbl > tbody > tr:nth-child("+i+") > td:nth-child(1) > input").val(); weight = parseFloat(weight); data = $("#tbl > tbody > tr:nth-child("+i+") > td:nth-child(2) > input").val(); if( weight>=0 ) { avg+=weight*data; sum+=weight; txt1+=weight+"\u00D7"+data+"+"; txt2+=weight+"+"; } } avg/=sum; avg = roundnum2(avg,8); txt="("+txt1+") / ("+txt2+") = "+avg; txt=txt.replace("+)",")"); txt=txt.replace("+)",")"); $("#avg").val(avg); $("#sum").val(sum); $("#TA1").val(txt); $("#row1").show(); $("#row2").show(); } function AddRow() { $('#tbl > tbody > tr').eq(++irow).after("<tr>\ <td><input type='number' name='weight[]'></td>\ <td><input type='text' name='data[]'></td>\ </tr>"); } </script>  <div id="ban-ad"> </div>   </div> </div> <div id="rcol"> <p style="text-align: center;font-size: 13px;">广告</p> <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-1832854270693044" data-ad-slot="6938384069" data-ad-format="auto" data-full-width-responsive="true"></ins>  <h5>数学计算器</h5> <ul> <li><a href="calculator.html">在线数学计算器</a></li> <li><a href="adding-fractions-calculator.html">加分数计算器</a></li> <li><a href="add-calculator.html">加法计算器</a></li> <li><a href="anti-log-calculator.html">反对数计算器</a></li> <li><a href="arccos-calculator.html">Arccos计算器</a></li> <li><a href="arcsin-calculator.html">Arcsin计算器</a></li> <li><a href="arctan-calculator.html">Arctan计算器</a></li> <li><a href="convolution-calculator.html">卷积计算器</a></li> <li><a href="cos-calculator.html">余弦计算器</a></li> <li><a href="dividing-fractions-calculator.html">除数计算器</a></li> <li><a href="division-calculator.html">除法计算器</a></li> <li><a href="exponential-growth-calculator.html">指数增长计算器</a></li> <li><a href="exponent-calculator.html">指数计算器</a></li> <li><a href="factorial-calculator.html">阶乘计算器</a></li> <li><a href="fractions-calculator.html">分数计算器</a></li> <li><a href="gcf-calculator.html">GCF计算器</a></li> <li><a href="lcm-calculator.html">LCM计算器</a></li> <li><a href="ln-calc.html">Ln计算器</a></li> <li><a href="log-calculator.html">对数计算器</a></li> <li><a href="multiplication-calculator.html">乘法计算器</a></li> <li><a href="multiplying-fractions-calculator.html">乘法分数计算器</a></li> <li><a href="percentage-calculator.html">百分比计算器</a></li> <li><a href="percentage-change-calculator.html">百分比变化计算器</a></li> <li><a href="percent-error-calculator.html">百分比误差计算器</a></li> <li><a href="percentage-increase-calculator.html">百分比增加计算器</a></li> <li><a href="pythagorean-calculator.html">勾股定理计算器</a></li> <li><a href="quadratic-calculator.html">二次方程求解器</a></li> <li><a href="ratio-calculator.html">比率计算器</a></li> <li><a href="root-calculator.html">根计算器</a></li> <li><a href="scientific-notation-calculator.html">科学计数法计算器</a></li> <li><a href="simplifying-fractions-calculator.html">简化分数计算器</a></li> <li><a href="sin-calculator.html">正弦计算器</a></li> <li><a href="square-root-calculator.html">平方根计算器</a></li> <li><a href="standard-deviation-calculator.html">标准差计算器</a></li> <li><a href="subtracting-fractions-calculator.html">减分数计算器</a></li> <li><a href="subtraction-calculator.html">减法计算器</a></li> <li><a href="tan-calculator.html">正切计算器</a></li> <li><a href="trigonometry-calculator.html">三角计算器</a></li> <li><a href="weighted-average-calculator.html">加权平均计算器</a></li> <li><a href="variance-calculator.html">方差计算器</a></li> </ul> <h5>快速表格</h5> <ul> <li><a href="mailto:?subject=无涯在线工具箱%20website&body=请查看这个网站:%20https://www.titaotie.com">推荐网站</a></li> <li><a href="#feedback">发送反馈</a></li> <li><a href="../../about/about.html">关于</a></li> </ul>  </div> </div> <div id="footer"> <a href="../../index.htm">首页</a>| <a href="../../web/index.html">网页</a>| <a href="../../math/index.html">数学</a>| <a href="../../electric/index.html">电力</a>| <a href="../index.html">计算器</a>| <a href="../../convert/index.html">转换器</a>| <a href="../../tools/index.html">工具类</a> <p>© 2026 <a href="../../index.htm">无涯在线工具箱</a> | <a href="../../about/about.html" rel="nofollow">关于</a>| <a href="../../about/terms.html" rel="nofollow">使用条款</a>| <a href="../../about/privacy.html" rel="nofollow">隐私政策</a>| <a href="../../about/cookies.html" rel="nofollow">管理 Cookie</a> </p> </div> <div id="banner"> <div> 该网站使用 Cookie 来改善你的体验，分析流量并展示广告。<a href="../../about/privacy.html">了解更多</a> </div> <div> <a id="banokbtn">确定</a> <a id="bansetbtn" href="../../about/cookies.html">管理设置</a> </div> </div>   </body>  </html>