{"id":98034,"date":"2024-11-08T15:53:00","date_gmt":"2024-11-08T10:23:00","guid":{"rendered":"https:\/\/www.electronicsforu.com\/?p=98034"},"modified":"2024-12-05T13:12:19","modified_gmt":"2024-12-05T07:42:19","slug":"coil-inductance-calculator","status":"publish","type":"post","link":"https:\/\/www.electronicsforu.com\/special\/coil-inductance-calculator","title":{"rendered":"Coil Inductance Calculator"},"content":{"rendered":"<!DOCTYPE html>\r\n<html>\r\n<head>\r\n<style>\r\n\r\n\r\n.word{\r\n    font-size: 30px;\r\n    font-weight: 900;\r\n\r\n}\r\n\t #div-gpt-ad-1567662419678-0, #div-gpt-ad-1635234769728-0, #div-gpt-ad-1564551273326-0{display:none;}\r\n\r\n .row .col-75  [type=number], input[type=text]{\r\n  width: 75%;\r\n  padding: 10px;\r\n  border: 1px solid black;\r\n  border-radius: 4px;\r\n  resize: vertical;\r\n}\r\n\r\n.row .col-76  [type=number], input[type=text]{\r\n  width: 75%;\r\n  padding: 10px;\r\n  border: 1px solid black;\r\n  border-radius: 4px;\r\n  resize: vertical;\r\n}\r\n\r\n\r\n\r\n\/* input[type=text]:hover{\r\n    box-shadow: 0px 0px 2px 2px blue;\r\n} *\/\r\n .row input[type=number]:hover{\r\n    box-shadow: 0px 0px 2px 2px blue;\r\n}\r\n\r\nlabel {\r\n  padding: 10px 10px 10px 0;\r\n  display: inline-block;\r\n  font-size: 18px;\r\n\t\t\r\n  font-weight: bolder;\r\n}\r\n\r\n .row input[type=button]  {\r\n  background-color: #04AA6D;\r\n  padding: 12px 20px;\r\n  border: 2px solid black;\r\n  border-radius: 4px;\r\n  cursor: pointer;\r\n  float: left;\r\ncolor: white;\r\n  width: 150px;\r\n  font-size: 17px;\r\n  margin: 20px;\r\n  margin-left:240px;\r\n  text-align: center;\r\n}\r\n\r\n.row input[type=reset]{\r\n    background-color:lightcoral;\r\n  color: white;\r\n  font-size: 17px;\r\n  padding: 12px 20px;\r\n  border: 2px solid black;\r\n  border-radius: 4px;\r\n  cursor: pointer;\r\n  float: left;\r\n  width: 150px;\r\n  margin: 20px;\r\n}\r\n.row input[type=button]:hover {\r\n  background-color: #45a049;\r\n}\r\n.row input[type=reset]:hover {\r\n  background-color: red;\r\n}\r\n\r\n.container {\r\n  border-radius: 5px;\r\n\t  background-color: #f2f2f2;\r\n\t  border: 2px solid blue;\r\n\t\r\npadding:10px;\r\n  max-width: 100%;\r\n\tmargin-bottom:10px;\r\n}\r\n\r\n.col-25 {\r\n  float: left;\r\n  width: 35%;\r\n  margin-top: 6px;\r\n}\r\n\r\n.col-75 {\r\n  float: left;\r\n  width: 65%;\r\n  margin-top: 6px;\r\n}\r\n.col-76 {\r\n  float: left;\r\n  width: 65%;\r\n  margin-top: 6px;\r\n}\r\nselect{\r\n    \/* float: right; *\/\r\n    width: 100px;\r\n    padding: 10px;\r\n  border: 1px solid #ccc;\r\n  border-radius: 4px;\r\n  resize: vertical;\r\n}\r\n\r\n\r\n.row:after {\r\n  content: \"\";\r\n  display: table;\r\n  clear: both;\r\n}\r\n\r\n@media screen and (max-width: 600px) {\r\n  .col-25, .col-75, .col-76 , .row input[type=button], .row input[type=reset] {\r\n    width: 110%;\r\n    margin-top: 0;\r\n    margin-left: 0;\r\n  }\r\n.row input[type=button] {\r\n    width: 38%;\r\n\r\n    margin-top: 0;\r\n    margin-left: 0;\r\n  \r\n  }\r\n  .row input[type=reset]{\r\n    width: 38%;\r\n  \r\n    margin-top: 0;\r\n    margin-left: 0;\r\n   \r\n  }\r\n}\r\n<\/style>\r\n<\/head>\r\n<body>\r\n<div class=\"container\">\r\n\r\n\t\t\r\n\t\r\n    <h2 class=\"word\">Inputs<\/h2>\r\n  <form>\r\n  <div class=\"row\">\r\n    <div class=\"col-25\">\r\n        <label>Relative permeability (\u03bc<sub>r<\/sub>)<\/label>\r\n    <\/div>\r\n    <div class=\"col-75\">\r\n        <input id=\"permeability\" name=\"permeability\" type=\"number\" placeholder=\"Relative permeability\"\/>\r\n    <\/div>\r\n  <\/div>\r\n  <div class=\"row\">\r\n    <div class=\"col-25\">\r\n        <label>Permeability of Air (H\/m)<\/label>\r\n    <\/div>\r\n    <div class=\"col-75\">\r\n        <input  style=\"color:black;font-weight: 500;background-color: lightgrey;\"id=\"air\" name=\"air\" type=\"number\"  readonly=\"readonly\"  value=\"1.26e-6\"\/>\r\n    <\/div>\r\n  <\/div>\r\n  <div class=\"row\">\r\n    <div class=\"col-25\">\r\n        <label>No. of turns<\/label>\r\n        \r\n    <\/div>\r\n    <div class=\"col-75\">\r\n        <input id=\"turns\" name=\"turns\" type=\"number\" placeholder=\"No. of turns\" \/>\r\n    <\/div>\r\n  <\/div>\r\n  \r\n  <div class=\"row\">\r\n    <div class=\"col-25\">\r\n        <label>Coil Radius<\/label>\r\n      \r\n    <\/div>\r\n    <div class=\"col-76\">\r\n        <input id=\"radius\" name=\"radius\" type=\"number\" placeholder=\"Coil Radius\" \/>\r\n        <select id=\"radius_unit\" name=\"radius_unit\"><option value=\"m\">Meters<\/option><option value=\"c\">Centimeters<\/option><option value=\"l\">Millimeters<\/option><option value=\"i\">Inches<\/option><\/select>\r\n    <\/div>\r\n  <\/div>\r\n  <br>\r\n  <div class=\"row\">\r\n    <div class=\"col-25\">\r\n        <label>Solenoid Length<\/label>\r\n       \r\n\r\n    <\/div>\r\n    <div class=\"col-76\">\r\n        <input id=\"length\" name=\"length\" type=\"number\"  placeholder=\"Solenoid Length\"\/>\r\n        <select id=\"length_unit\" name=\"length_unit\"><option value=\"m\">Meters<\/option><option value=\"c\">Centimeters<\/option><option value=\"l\">Millimeters<\/option><option value=\"i\">Inches<\/option><\/select>\r\n\r\n    <\/div>\r\n  <\/div>\r\n  <br>\r\n  <div class=\"row\">\r\n    <input class=\"calc_btn\" onclick=\"calc()\" type=\"button\" value=\"Calculate\" \/>\r\n\t\t\t<input class=\"calc_btn\" type=\"reset\" value=\"Reset\" \/>\r\n  <\/div>\r\n  <h2 class=\"word\">Output<\/h2>\r\n  <div class=\"row\">\r\n    <div class=\"col-25\">\r\n        <label>Inductance :-<\/label>\r\n        \r\n\r\n    <\/div>\r\n    <div class=\"col-75\">\r\n        <input style=\"font-size:20px;padding-top:20px;padding-bottom:20px;\";class=\"disabled\" disabled=\"disabled\" id=\"inductance_ur_res\" name=\"inductance_ur_res\" readonly=\"readonly\" type=\"text\" placeholder=\"Inductance \" \/>\r\n\t\t\t<select id=\"unit\" onchange=\"myFunction()\"><option value=\"3\">H<\/option><option value=\"2\">mH<\/option><option value=\"1\">\u00b5H<\/option><\/select>\r\n\r\n    <\/div>\r\n  <\/div>\r\n  <br>\r\n  <\/form>\r\n\t\t<\/div>\r\n<script>\r\n       \r\n\r\n       function convert_to_meters(v, t)\r\n    {\r\n      if (t == 'm')\r\n         return v;\r\n      else if (t == 'c')\r\n         return v*0.01;\r\n      else if (t == 'l')\r\n         return v*0.001;\r\n      else if (t == 'i')\r\n         return v*0.0254;\r\n      return 0;\r\n    }\r\n    var ind;\r\n    function calc()\r\n    {\r\n       var ur, n, a, r, d, l, wd;\r\n       var a_unit, r_unit, d_unit, l_unit, wd_unit;\r\n       \r\n    \r\n       ur = document.getElementById(\"permeability\").value;\r\n       n = document.getElementById(\"turns\").value;\r\n       r = document.getElementById(\"radius\").value;\r\n       r_unit = document.getElementById(\"radius_unit\").value;\r\n       l = document.getElementById(\"length\").value;\r\n       l_unit = document.getElementById(\"length_unit\").value;\r\n    \r\n      if(ur==\"\"){\r\n        alert(\"Enter permeability\");\r\n        return false;\r\n      }\r\n      if(n==\"\"){\r\n        alert(\"Enter Number of turns\");\r\n        return false;\r\n      }\r\n      if(r==\"\"){\r\n        alert(\"Enter Radius\");\r\n        return false;\r\n      }\r\n      if(l==\"\"){\r\n        alert(\"Enter length\");\r\n        return false;\r\n      }\r\n        if (!isNaN(r) && r > 0) {\r\n          r = convert_to_meters(r, r_unit);\r\n          a = Math.PI * r * r;\r\n       }  \r\n       if (!isNaN(l) && l > 0) {\r\n          l = convert_to_meters(l, l_unit);\r\n       }\r\n       ind = ur * ((n * n * a)\/l) * 0.00000126;\r\n    \r\n       ind = ind;\r\n       document.getElementById(\"inductance_ur_res\").value = ind;\r\n       document.getElementById(\"unit\").value = 3;\r\n    }\r\n    function myFunction() {\r\n      var unit = document.getElementById(\"unit\").value;\r\n    if(unit == 1){\r\n      document.getElementById(\"inductance_ur_res\").value = ind * 1000000;\r\n    }\r\n    else if(unit ==2){\r\n     document.getElementById(\"inductance_ur_res\").value = ind * 1000; \r\n    }\r\n    else {\r\n      document.getElementById(\"inductance_ur_res\").value = ind * 1;\r\n    }\r\n    \r\n    }\r\n    ;\r\n   \r\n   \r\n       <\/script>\r\n<\/body>\r\n<\/html>\r\n\r\n\r\n\n\n\n<p>The <strong>Coil Inductance Calculator<\/strong> is a valuable tool for electronics engineers, hobbyists, and students working with inductors and coils. It helps you quickly determine the inductance of a coil based on its physical parameters such as the number of turns, coil diameter, and length. Accurate inductance values are crucial for designing circuits like filters, oscillators, and transformers.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Why Use This Calculator?<\/strong><\/h2>\n\n\n\n<p>The <strong>Coil Inductance Calculator<\/strong> provides several advantages:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Fast and Accurate Calculation<\/strong>: Instantly calculates inductance without complex manual computations.<\/li>\n\n\n\n<li><strong>Versatile Input Parameters<\/strong>: Supports a variety of input values including coil length, diameter, and number of turns.<\/li>\n\n\n\n<li><strong>User-Friendly<\/strong>: Simple and easy-to-use interface, suitable for both beginners and professionals.<\/li>\n\n\n\n<li><strong>Saves Time<\/strong>: Eliminates the need for complex equations, streamlining the design process.<\/li>\n\n\n\n<li><strong>Free to Use<\/strong>: Available online at no cost, making it accessible to anyone needing inductance calculations.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How to Use the Coil Inductance Calculator<\/strong><\/h2>\n\n\n\n<p>To use the calculator, follow these steps:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Enter the Number of Turns<\/strong>: Specify the total number of turns in the coil.<\/li>\n\n\n\n<li><strong>Enter the Coil Diameter<\/strong>: Input the diameter of the coil in centimeters or inches.<\/li>\n\n\n\n<li><strong>Enter the Coil Length<\/strong>: Provide the length of the coil in centimeters or inches.<\/li>\n\n\n\n<li><strong>Click Calculate<\/strong>: The calculator will display the inductance value in microhenries (\u00b5H).<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Formula:<\/strong><\/h3>\n\n\n\n<p>The inductance of a coil can be estimated using the following formula:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"155\" height=\"61\" src=\"https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2022\/06\/Coil-Inductance-Formula.png\" alt=\"Coil Inductance Formula\" class=\"wp-image-151845\"\/><figcaption class=\"wp-element-caption\">Coil Inductance Formula<\/figcaption><\/figure><\/div>\n\n\n<p>Where:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L is the inductance (in microhenries, \u00b5H),<\/li>\n\n\n\n<li>N is the number of turns,<\/li>\n\n\n\n<li>D is the diameter of the coil (in centimeters),<\/li>\n\n\n\n<li>L is the length of the coil (in centimeters).<\/li>\n<\/ul>\n\n\n\n<p><strong>Example Calculation<\/strong>:<\/p>\n\n\n\n<p>If the coil has 50 turns, a diameter of 5 cm, and a length of 10 cm:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"284\" height=\"55\" src=\"https:\/\/www.electronicsforu.com\/wp-contents\/uploads\/2022\/06\/Coil-Inductance-Calculation-3.png\" alt=\"Coil Inductance Calculation\" class=\"wp-image-151849\"\/><figcaption class=\"wp-element-caption\">Coil Inductance Calculation<\/figcaption><\/figure><\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>Applications of the Coil Inductance Calculator<\/strong><\/h3>\n\n\n\n<p>This calculator is used in various electronics applications:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Designing Inductors<\/strong>: Helps in designing inductors for circuits like RF filters, chokes, and power supplies.<\/li>\n\n\n\n<li><strong>RF and Oscillator Circuits<\/strong>: Essential for tuning circuits in radio frequency (RF) applications.<\/li>\n\n\n\n<li><strong>Transformer Design<\/strong>: Assists in calculating the inductance for transformer coils, crucial for efficient energy transfer.<\/li>\n\n\n\n<li><strong>DIY Electronics Projects<\/strong>: Useful for creating custom inductors for experimental or hobby projects.<\/li>\n\n\n\n<li><strong>Educational Purposes<\/strong>: Aids students in understanding the principles of inductance and coil design.<\/li>\n<\/ol>\n\n\n\n<p>Also check:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.electronicsforu.com\/special\/wire-over-plane-inductance-calculator\">Wire Over Plane Inductance Calculator<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.electronicsforu.com\/special\/wire-self-inductance-calculator\">Wire Self Inductance Calculator<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.electronicsforu.com\/special\/microstrip-inductance-calculator\">Microstrip Inductance Calculator<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.electronicsforu.com\/special\/broadside-coupled-trace-inductance-calculator\">Broadside Coupled Trace Inductance Calculator<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.electronicsforu.com\/special\/edge-coupled-trace-inductance-calculator\">Edge Coupled Trace Inductance Calculator<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.electronicsforu.com\/special\/wire-loop-inductance-calculator\">Wire Loop Inductance Calculator<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.electronicsforu.com\/special\/parallel-wire-inductance-calculator\">Parallel Wire Inductance Calculator<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.electronicsforu.com\/special\/inductance-conversion-calculator\">Inductance Conversion Calculator<\/a><\/li>\n<\/ul>\n\n\n\n<p>Check&nbsp;<strong><a href=\"https:\/\/www.electronicsforu.com\/electronics-calculators\">Electronics Calculators<\/a><\/strong>&nbsp;that you can use for free<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Coil Inductance Calculator is a valuable tool for electronics engineers, hobbyists, and students working with inductors and coils. It helps you quickly determine the inductance of a coil based on its physical parameters such as the number of turns, coil diameter, and length. Accurate inductance values are crucial for designing circuits like filters, oscillators, [&hellip;]<\/p>\n","protected":false},"author":105965,"featured_media":98054,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3708,8521],"tags":[],"class_list":{"0":"post-98034","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-special","8":"category-electronics-calculators"},"_links":{"self":[{"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/posts\/98034","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/users\/105965"}],"replies":[{"embeddable":true,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/comments?post=98034"}],"version-history":[{"count":1,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/posts\/98034\/revisions"}],"predecessor-version":[{"id":153691,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/posts\/98034\/revisions\/153691"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/media\/98054"}],"wp:attachment":[{"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/media?parent=98034"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/categories?post=98034"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.electronicsforu.com\/wp-json\/wp\/v2\/tags?post=98034"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}