Unit Converter — Convert Length, Weight, Temperature & More Free
UtilityConvert between metric and imperial units — length, weight, temperature, speed, area and more. Instant conversion. Free online unit converter — no sign-up required.
Quick Reference (1 Meter (m))
About the Unit Converter — Convert Length, Weight, Temperature & More Free
Our free unit converter lets you instantly convert between hundreds of units across length, weight, temperature, speed, area, volume and data storage. Whether you need to convert miles to kilometres, pounds to kilograms, Fahrenheit to Celsius, or gigabytes to megabytes, our converter gives you accurate results instantly. All conversions use precise conversion factors and are calculated in real time as you type.
How to Use the Unit Converter — Convert Length, Weight, Temperature & More Free
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Select the measurement category you want to convert — length, weight, temperature, speed, area, volume or data.
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Choose the unit you are converting from in the left dropdown.
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Choose the unit you are converting to in the right dropdown.
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Enter the value you want to convert in the input field.
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The converted result appears instantly — no need to press any button.
Frequently Asked Questions
How do I convert miles to kilometres?
Select Length as the category, choose Miles as the from unit and Kilometres as the to unit, then enter your value. One mile equals 1.60934 kilometres. For a quick mental calculation, multiply miles by 1.6 to get an approximate kilometre value.
How do I convert Fahrenheit to Celsius?
Select Temperature as the category, choose Fahrenheit as the from unit and Celsius as the to unit. The formula is: Celsius = (Fahrenheit - 32) × 5/9. For example, 72°F = (72 - 32) × 5/9 = 22.2°C.
How do I convert pounds to kilograms?
Select Weight as the category, choose Pounds (lbs) as the from unit and Kilograms (kg) as the to unit. One pound equals 0.453592 kilograms. To convert quickly, divide pounds by 2.2 for an approximate kilogram value.
How accurate are the conversions?
All conversions use precise, internationally recognised conversion factors. Results are accurate to multiple decimal places. For scientific or engineering purposes, you can rely on these results.
Which unit systems does the converter support?
Our converter supports both the metric system (SI units — metres, kilograms, Celsius, litres) used by most of the world, and the imperial system (miles, pounds, Fahrenheit, gallons) used primarily in the United States and partially in the United Kingdom.