Unit Converter - Convert Between Different Units

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Quick Reference

Length

  • 1 km = 1,000 m
  • 1 m = 100 cm
  • 1 cm = 10 mm

Weight

  • 1 kg = 1,000 g
  • 1 g = 1,000 mg
  • 1 tonne = 1,000 kg

Volume

  • 1 L = 1,000 mL
  • 1 m³ = 1,000 L
  • 1 mL = 1 cm³

Length

  • 1 mile = 1,760 yards
  • 1 yard = 3 feet
  • 1 foot = 12 inches

Weight

  • 1 ton = 2,000 lbs
  • 1 lb = 16 oz
  • 1 stone = 14 lbs

Volume

  • 1 gallon = 4 quarts
  • 1 quart = 2 pints
  • 1 pint = 2 cups

Accuracy

Results are calculated to high precision but may be rounded for display.

Temperature

Temperature conversions use exact formulas, not approximations.

Scientific Notation

Very large or small numbers are displayed in scientific notation.

Unit Converter

Free online convert between different units of measurement including length, weight, temperature, volume, area, speed, and more.

Utility Tools

How people use it

This browser-based tool is designed to be fast, easy to use, and private by default. Open the tool, adjust the settings, and get results instantly without creating an account or sending files to a server.

Everything runs locally in the browser whenever possible, which reduces friction for users and makes the page more useful as a direct-answer landing page from search.

Common topics

The following topics are closely related to this tool and help explain what it is for:

Quick answers

What units can I convert?

This converter supports common categories like length, weight, temperature, volume, area, speed, time, and energy.

How do I convert temperature (°C/°F/K)?

Temperature uses formulas (not a simple ratio). Example: °F = (°C × 9/5) + 32, and K = °C + 273.15.

What does the swap button do?

Swap switches the “from” and “to” units so you can quickly convert in the opposite direction.

More tools to explore

Unit Converter Documentation & Guide

Free online convert between different units of measurement including length, weight, temperature, volume, area, speed, and more. Easy-to-use converter with accurate calculations and comprehensive unit support.

Overview

Unit Converter is an easy and free online tool that runs in your browser.

What you can do with this tool

Key capabilities (based on the actual UI and code):

  • Has modes/tabs: metric, imperial, conversion-tips
  • Runs in your browser (local-first)

Read the full guide forUnit Converter