Free Online Unit Converter

Convert cm to inches, kg to pounds, Celsius to Fahrenheit and hundreds of other units across 37 categories. Results update as you type, and everything is calculated in your browser.

Most popular conversions

• Centimeter to Inch(cm to in)
• Inch to Centimeter(in to cm)
• Kilogram to Pound(kg to lb)
• Pound to Kilogram(lb to kg)
• Celsius to Fahrenheit(°C to °F)
• Fahrenheit to Celsius(°F to °C)
• Foot to Centimeter(ft to cm)
• Centimeter to Foot(cm to ft)
• Milliliter to Fluid Ounce (US)(mL to fl oz)
• Fluid Ounce (US) to Milliliter(fl oz to mL)
• Mile to Kilometer(mi to km)
• Kilometer to Mile(km to mi)
• Gallon (US) to Liter(gal to L)
• Liter to Gallon (US)(L to gal)
• Cup (US) to Milliliter(cup to mL)
• Tablespoon (US) to Milliliter(tbsp to mL)
• Miles per Hour to Kilometers per Hour(mph to km/h)
• Kilometers per Hour to Miles per Hour(km/h to mph)
• Square Foot to Square Meter(ft² to m²)
• Acre to Hectare(ac to ha)

Calculators and tools

• Finance & Money calculators
• Crypto & Trading calculators
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• Education calculators
• Math & Utility calculators
• Home & DIY calculators
• Business & Work calculators
• Fun & Curiosity calculators
• Trending calculators
• File tools (PDF, image, audio, video)
• Utility tools (JSON, QR code, password)

Frequently asked questions