科学符号转换器/title> <meta name="description" content="科学计数法转换计算器：十进制计数法，E计数法，工程计数法。"> <link rel="stylesheet" type="text/css" href="../../assets/bootstrap/3.3.6/css/bootstrap.min.css" > <style> .calc2 tr:nth-child(5) input[type=button] { width:40px; } @media all and (max-width: 576px) { .calc2 tr td:nth-child(4) input[type=text] { width:50px; } .calc2 tr td:nth-child(2) { padding-top:25px;} .calc2 tr td:nth-child(3) { padding-top:30px;} .calc2 td:nth-child(2) input[type=text] { width:90px;} .calc2 tr:nth-child(2) input[type=text], .calc2 tr:nth-child(3) input[type=text] { width:190px; } .calc2 tr:nth-child(2) td:nth-child(2), .calc2 tr:nth-child(3) td:nth-child(2) { padding-top:0px; } .calc2 tr:nth-child(2) td:nth-child(3), .calc2 tr:nth-child(3) td:nth-child(3) { padding-top:0px; margin-left:3px } .calc2 tr td:nth-child(5) { padding-top:30px; } } @media all and (min-width: 577px) { .calc2 td:nth-child(2) input[type=text] { width:180px;} .calc2 tr td:nth-child(4) input[type=text] { width:80px; 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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">转换</a>/<a href="index.html">数字转换</a>/科学计数法转换器 </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>科学符号转换器</h1> <p>标准十进制表示法，E表示法，归一化表示法和工程学表示法的科学表示法：</p> <form name="calcform" autocomplete="off"> <ul class="nav nav-tabs"> <li><a href="../../calc/math/scientific-notation-calculator.html">科学计数法计算器</a></li> <li class="active"><a href="#">科学计数转换器</a></li> </ul> <table class="calc2"> <tbody> <tr> <td><label for="sci">科学计数法</label>）</td> <td><input type="text" id="sci" name="sci" class="form-control input-lg" autofocus></td> <td class="math">×10</td> <td><input type="text" id="sci2" class="form-control input-lg" name="sci2"></td> <td><input onclick="Convert_Sci()" type="button" value="转换" class="btn btn-default btn-lg"></td> </tr> <tr> <td><label for="dec">十进制表示法</label></td> <td colspan="3"><input type="text" id="dec" name="dec" class="form-control input-lg"></td> <td><input onclick="Convert_Dec()" type="button" value="转换" class="btn btn-default btn-lg"></td> </tr> <tr> <td><label for="e">E表示法：</label></td> <td colspan="3"><input type="text" id="e" name="e" class="form-control input-lg"></td> <td><input onclick="Convert_E()" type="button" value="转换" class="btn btn-default btn-lg"></td> </tr> <tr> <td><label for="norm">规范化的表示法：</label></td> <td><input type="text" id="norm" name="norm" class="form-control input-lg" readonly></td> <td class="math">×10</td> <td><input type="text" id="norm2" name="norm2" class="form-control input-lg" readonly></td> <td> </td> </tr> <tr> <td><label for="eng">工程符号</label></td> <td><input type="text" id="eng" name="eng" class="form-control input-lg" readonly></td> <td class="math">×10</td> <td><input type="text" id="eng2" name="eng2" class="form-control input-lg" readonly></td> <td><input type="button" value=" class="btn btn-default btn-lg" onclick="Convert_Eng(0)"><input type="button" value="/" class="btn btn-default btn-lg" onclick="Convert_Eng(1)"></td> </tr> <tr> <td> </td> <td> </td> <td> </td> <td> </td> <td><input type="reset" value="重置" class="btn btn-default btn-lg"></td> </tr> </tbody> </table> </form> <p><a href="../../calc/math/scientific-notation-calculator.html">科学计数计算器►</a></p> <p> </p> <div id="bottom-ad_2"> </div><hr> <h2>另请参阅</h2> <ul class="seealso"> <li><a href="../../calc/math/scientific-notation-calculator.html">科学计数法计算器</a></li> <li><a href="ppm-to-percent.html">ppm到百分比转换器</a></li> <li><a href="roman-numerals-converter.html">罗马数字转换器</a></li> <li><a href="ascii-to-hex.html">ASCII文本到十六进制转换器</a></li> <li><a href="fraction-to-decimal.html">分数到十进制转换器</a></li> <li><a href="../../calc/math/percentage-calculator.html">百分比计算器</a></li> <li><a href="../../math/number/ppm.html">ppm </a></li> <li><a href="../index.html">转换次数</a></li> <li><a href="../../calc/math/index.html">数学计算器</a></li> </ul> <script src="../../assets/convert/convert.js" ></script> <script> function Convert_Sci() { a = document.calcform.sci.value; b = document.calcform.sci2.value; b = parseInt(b); dec = a*Math.pow(10,b); dec = roundnum(dec,10); sign=""; if(b>=0) sign="+"; e = a+"e"+sign+b; f = (a==0)?0:Math.floor( Math.log(Math.abs(a))*Math.LOG10E ); norm = a/Math.pow(10,f); norm = roundnum(norm,10); norm2= parseInt(b)+f; mod = norm2%3; eng = norm*Math.pow(10,mod); eng = roundnum(eng,10); eng2= norm2-mod; if( Math.abs(eng)<1 && eng!=0 ) { eng*=1000; eng2-=3; } eng = roundnum(eng,10); dec=parseFloat(dec).toFixed(20).replace(/\.?0+$/,""); document.calcform.dec.value = dec; document.calcform.e.value = e; document.calcform.norm.value = norm; document.calcform.norm2.value = norm2; document.calcform.eng.value = eng; document.calcform.eng2.value = eng2; } function Convert_Dec() { dec = document.calcform.dec.value; dec = parseFloat(dec); e = dec.toExponential(); a=e; b=0; i=e.indexOf('e'); if( i!=-1 ) { a = e.substring(0,i); b = e.substring(i+1,e.length); } b = parseInt(b); f = (a==0)?0:Math.floor( Math.log(Math.abs(a))*Math.LOG10E ); norm = a/Math.pow(10,f); norm = roundnum(norm,10); norm2= parseInt(b)+f; mod = norm2%3; eng = norm*Math.pow(10,mod); eng = roundnum(eng,10); eng2= norm2-mod; if( Math.abs(eng)<1 && eng!=0 ) { eng*=1000; eng2-=3; } eng = roundnum(eng,10); document.calcform.sci.value = a; document.calcform.sci2.value = b; document.calcform.e.value = e; document.calcform.norm.value = norm; document.calcform.norm2.value = norm2; document.calcform.eng.value = eng; document.calcform.eng2.value = eng2; } function Convert_E() { e = document.calcform.e.value; a=e; b=0; i=e.indexOf('e'); if( i!=-1 ) { a = e.substring(0,i); b = e.substring(i+1,e.length); } b = parseInt(b); dec = a*Math.pow(10,b); dec = roundnum(dec,10); f = (a==0)?0:Math.floor( Math.log(Math.abs(a))*Math.LOG10E ); norm = a/Math.pow(10,f); norm = roundnum(norm,10); norm2= parseInt(b)+f; mod = norm2%3; eng = norm*Math.pow(10,mod); eng = roundnum(eng,10); eng2= norm2-mod; if( Math.abs(eng)<1 && eng!=0 ) { eng*=1000; eng2-=3; } eng = roundnum(eng,10); dec=parseFloat(dec).toFixed(20).replace(/\.?0+$/,""); document.calcform.dec.value = dec; document.calcform.sci.value = a; document.calcform.sci2.value = b; document.calcform.norm.value = norm; document.calcform.norm2.value = norm2; document.calcform.eng.value = eng; document.calcform.eng2.value = eng2; } function Convert_Eng(e) { a = document.calcform.eng.value; b = document.calcform.eng2.value; a = parseFloat(a); b = parseInt(b); if(e==0) { a*=1000; b-=3; } else { a/=1000; b+=3; } document.calcform.eng.value = a; document.calcform.eng2.value = b; } </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>NUMBER转换</h5> <ul> <li><a href="ascii-hex-bin-dec-converter.html">ASCII，十六进制，二进制，十进制转换器</a></li> <li><a href="ascii-to-binary.html">ASCII文本到二进制转换器</a></li> <li><a href="ascii-to-hex.html">ASCII文本到十六进制转换器</a></li> <li><a href="base-converter.html">进制转换器</a></li> <li><a href="binary-converter.html">二进制转换器</a></li> <li><a href="binary-to-ascii.html">二进制到ASCII文本转换器</a></li> <li><a href="binary-to-decimal.html">二进制到十进制转换器</a></li> <li><a href="binary-to-hex.html">二进制到十六进制转换器</a></li> <li><a href="date-to-roman-numerals.html">罗马数字转换器的日期</a></li> <li><a href="decimal-to-fraction.html">小数到分数转换器</a></li> <li><a href="decimal-to-percent.html">十进制到百分比转换器</a></li> <li><a href="decimal-to-binary.html">十进制到二进制转换器</a></li> <li><a href="decimal-to-octal.html">十进制到八进制转换器</a></li> <li><a href="decimal-to-hex.html">十进制到十六进制转换器</a></li> <li><a href="degrees-to-degrees-minutes-seconds.html">度到度，分，秒转换器</a></li> <li><a href="degrees-minutes-seconds-to-degrees.html">度分秒转十进制度转换器</a></li> <li><a href="degrees-to-radians.html">度到弧度转换器</a></li> <li><a href="fraction-to-decimal.html">分数到十进制转换器</a></li> <li><a href="fraction-to-percent.html">分数到百分比转换器</a></li> <li><a href="hex-dec-bin-converter.html">十六进制/十进八进二进制转换器</a></li> <li><a href="hex-to-ascii.html">十六进制到ASCII文本转换器</a></li> <li><a href="hex-to-binary.html">十六进制到二进制转换器</a></li> <li><a href="hex-to-decimal.html">十六进制到十进制转换器</a></li> <li><a href="octal-to-decimal.html">八进制到十进制转换器</a></li> <li><a href="percent-to-decimal.html">百分比到十进制转换器</a></li> <li><a href="percent-to-fraction.html">百分比到分数转换器</a></li> <li><a href="percent-to-ppm.html">百分比到ppm转换器</a></li> <li><a href="ppm-to-percent.html">ppm到百分比转换器</a></li> <li><a href="ppm-to-ppb.html">ppm到ppb转换器</a></li> <li><a href="ppm-to-ppt.html">ppm到ppt转换器</a></li> <li><a href="ppb-to-ppm.html">ppb至ppm转换器</a></li> <li><a href="ppt-to-ppm.html">ppt到ppm转换器</a></li> <li><a href="ppm-converter.html">ppm转换器</a></li> <li><a href="radians-to-degrees.html">弧度到度转换器</a></li> <li><a href="roman-numerals-converter.html">罗马数字转换器</a></li> <li><a href="scientific-notation-converter.html">科学计数转换器</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="../../calc/index.html">计算器</a>| <a href="../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>