📏 Unit Converter

Our free Unit Converter handles length, weight, temperature, volume, area, and speed conversions instantly. Switch between metric and imperial systems with a single click. Perfect for travel, cooking, science, international business, and everyday calculations.

Categories: Length (meters, feet, inches, miles, km). Weight (kg, lbs, oz, stones). Temperature (°C, °F, K). Volume (L, gal, cups, fl oz). Area (sq m, sq ft, acres, hectares). Speed (km/h, mph, m/s). More categories coming soon.

Example conversions: 100 kg = 220.5 lbs. 1 mile = 1.609 km. 30°C = 86°F. 1 gallon = 3.785 liters. 1 acre = 4,047 sq m. 60 km/h = 37.3 mph. All conversions use exact conversion factors, not approximations.

Why it matters: The USA, Myanmar, and Liberia are the only countries using imperial measurement. The rest of the world uses metric. If you travel, shop online internationally, or work with global partners, a unit converter is essential.

Related: Use our BMI Calculator which uses metric units. The Calorie Calculator needs weight in kg. The Gold Calculator uses grams and ounces. The Age Calculator works with Gregorian dates. All tools work together seamlessly.

Our converter is entirely browser-based — no server calls, no tracking. Type any value, select units, get instant accurate results. Free for unlimited use.