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How TO - Weight Converter


Learn how to create a weight converter with HTML and JavaScript.


Weight Converter

Type a value in any of the fields to convert between weight measurements:


Create a Weight Converter

Create an input element that can convert a value from one weight measurement to another.

Step 1) Add HTML:

Example - Pounds to Kilogram

<p>
  <label>Pounds</label>
  <input id="inputPounds" type="number" placeholder="Pounds"
  oninput="weightConverter(this.value)" onchange="weightConverter(this.value)">
</p>
<p>Grams: <span id="outputGrams"></span></p>

Step 2) Add JavaScript:

Example - Pounds to Kilogram

/* When the input field receives input, convert the value from pounds to kilograms */
function weightConverter(valNum) {
  document.getElementById("outputGrams").innerHTML = valNum / 0.0022046;
}
Try it Yourself »


Convert from Pounds to other Measurements

The table below shows how to convert from Pounds to other weight measurements:

Description Formula Example
Convert from Pounds to Kilograms kg=lb/2.2046 Try it
Convert from Pounds to Ounces oz=lb*16 Try it
Convert from Pounds to Grams g=lb/0.0022046 Try it
Convert from Pounds to Stones st=lb*0.071429 Try it

Convert from Kilograms to other Measurements

The table below shows how to convert from Kilograms to other weight measurements:

Description Formula Example
Convert from Kilograms to Pounds lb=kg*2.2046 Try it
Convert from Kilograms to Ounces oz=kg*35.274 Try it
Convert from Kilograms to Grams g=kg*1000 Try it
Convert from Kilograms to Stones st=kg*0.1574 Try it

Convert from Ounces to other Measurements

The table below shows how to convert from Ounces to other weight measurements:

Description Formula Example
Convert from Ounces to Pounds lb=oz*0.0625 Try it
Convert from Ounces to Kilograms kg=oz/35.274 Try it
Convert from Ounces to Grams g=oz/0.035274 Try it
Convert from Ounces to Stones st=oz*0.0044643 Try it

Convert from Grams to other Measurements

The table below shows how to convert from Grams to other weight measurements:

Description Formula Example
Convert from Grams to Pounds lb=g*0.0022046 Try it
Convert from Grams to Kilograms kg=g/1000 Try it
Convert from Grams to Ounces oz=g*0.035274 Try it
Convert from Grams to Stones st=g*0.00015747 Try it

Convert from Stones to other Measurements

The table below shows how to convert from Stones to other weight measurements:

Description Formula Example
Convert from Stones to Pounds lb=st*14 Try it
Convert from Stones to Kilograms kg=st/0.15747 Try it
Convert from Stones to Ounces oz=st*224 Try it
Convert from Stones to Grams g=st/0.00015747 Try it