Classic Unit Converter
Precise conversions for every situation.
Select a category to start converting
Choose one of the conversion categories above to access specific unit converters. Each category contains specialized units and conversion formulas.
Popular conversions
- Length (meters to feet, inches to centimeters)
- Weight (kilograms to pounds, ounces to grams)
- Temperature (Celsius to Fahrenheit)
- Volume (liters to gallons, cups to milliliters)
- Area (square meters to square feet)
Features
- Accurate conversion formulas
- Detailed unit information
- Copy results with one click
- Multiple number formats (US, EU, Plain)
- Mobile-friendly interface
Quick Tips
Click any category tab above to start converting. You can swap units with the swap button, copy results to clipboard, and view detailed information about each unit. Your recent conversions are saved automatically for quick access later.
Filter Conversion Categories
Area
Convert between square meters, acres, etc.
Currency
Convert between USD, EUR, GBP, etc.
Length
Convert between meters, feet, inches, etc.
Weight
Convert between kilograms, pounds, ounces, etc.
Speed
Convert between mph, km/h, m/s, knots, etc.
Temperature
Convert between Celsius, Fahrenheit, Kelvin, etc.
Time
Convert between seconds, minutes, hours, etc.
Volume
Convert between liters, gallons, cups, etc.
Electricity & Power
Convert between watts, kilowatts, horsepower, etc.
Frequency
Convert between Hz, kHz, MHz, GHz, THz, etc.
Digital Storage
Convert between bytes, KB, MB, GB, TB, etc.
Energy
Convert between joules, calories, BTU, kWh, etc.
Force
Convert between newtons, pounds-force, dynes, etc.
Kitchen Measures
Convert between cups, tablespoons, teaspoons, etc.
Pressure
Convert between pascals, PSI, bar, atmosphere, etc.
Nutrition
Convert between calories and kilojoules
CPU Speed
Convert between MHz, GHz processor frequencies
Data Transfer
Convert between Mbps, Gbps, MB/s network speeds
Density
Convert between kg/m³, g/cm³, lb/ft³
Font Size
Convert between pt, px, em, rem
Illuminance
Convert between lux, foot-candles, phots
Radiation
Convert between Sieverts, Rem, Becquerel