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Unit Converters

Fast, accurate conversion tools for hundreds of units across 7 categories. Select a category to get started — results are instant, no sign-up needed.

7 CategoriesInstant ResultsFormula DisplayReference Tables100% FreeNo Sign-up

Weight & Mass

12 units — Kilogram, Gram, Milligram, Microgram, and more

kg → lblb → kgg → ozoz → g

Length & Distance

12 units — Meter, Kilometer, Centimeter, Millimeter, and more

km → mimi → kmm → ftft → m

Temperature

4 units — Celsius, Fahrenheit, Kelvin, Rankine, and more

°C → °F°F → °C°C → KK → °C

Area

10 units — Square Meter, Square Kilometer, Square Centimeter, Square Millimeter, and more

m² → ft²ft² → m²ac → m²m² → ac

Volume

12 units — Liter, Milliliter, Cubic Meter, Cubic Centimeter, and more

L → galgal → LmL → fl ozfl oz → mL

Speed

7 units — Meter per Second, Kilometer per Hour, Mile per Hour, Knot, and more

km/h → mphmph → km/hm/s → km/hkm/h → m/s

Data Storage

11 units — Byte, Kilobyte, Megabyte, Gigabyte, and more

GB → MBMB → GBTB → GBGB → TB

Popular Conversions

⚖️Kilogram → Pound ⚖️Pound → Kilogram ⚖️Gram → Ounce 📏Kilometer → Mile 📏Mile → Kilometer 📏Meter → Foot 🌡️Celsius → Fahrenheit 🌡️Fahrenheit → Celsius 🌡️Celsius → Kelvin 📐Square Meter → Square Foot 📐Square Foot → Square Meter 📐Acre → Square Meter 🧪Liter → US Gallon 🧪US Gallon → Liter 🧪Milliliter → US Fluid Ounce 💨Kilometer per Hour → Mile per Hour 💨Mile per Hour → Kilometer per Hour 💨Meter per Second → Kilometer per Hour 💾Gigabyte → Megabyte 💾Megabyte → Gigabyte 💾Terabyte → Gigabyte