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Unit Converters · Free tool

Unit Converter

Free universal unit converter. Length, weight, volume, area, speed, energy, and more. All in one place.

Updated April 2026

What it does

A free unit converter for length, weight, volume, and area — the everyday conversions that come up constantly. Meters to feet, pounds to kilograms, gallons to liters, acres to hectares. Runs in your browser with live updates as you type.

Conversions are a staple of cross-country recipes, travel planning, international shipping, and DIY projects. This tool covers the main categories you’ll hit 99% of the time; specialized conversions (cooking temperatures, fuel economy) are handled by our temperature converter and category-specific tools.

How to use it

  1. Pick a category: length, weight, volume, or area.
  2. Enter a value in the From field.
  3. Pick the From and To units.
  4. Read the converted value — updates live as you type.