Unit Converter
Convert between common units quickly and accurately.
A unit is a measurement of a quantity that is defined or adopted by tradition or law. Other quantities can be expressed as a multiple of the unit. In human history, various unit systems were developed and used in different regions and cultures. Currently, the global standard of measurement is the International System of Units (SI), which is a modern form of the metric system. Although SI is intended for global use, it has not been fully adopted, and some other systems of measurement are still used in parts of the world. The intent of this site is to provide a convenient means to convert between the various units of measurement within different systems, as well as to provide a basic understanding of the systems currently in use, and how they interact. Refer to the Common Unit Systems page for further information.
Common Conversions
- cm to inches
- kg to lbs
- Celsius to Fahrenheit
- mm to inches
- meters to feet
- km to miles
- cm to feet
- grams to ounces
- inches to feet
- liters to gallons
- pounds to ounces
- mph to kph
- acres to square feet
- radians to degrees
- hp to kw
- meters to yards
- mL to cups
- inches to cm
- lbs to kg
- Fahrenheit to Celsius
- inches to mm
- feet to meters
- miles to km
- feet to cm
- ounces to grams
- feet to inches
- gallons to liters
- ounces to pounds
- kph to mph
- square feet to acres
- degrees to radians
- kw to hp
- yards to meters
- cups to mL
Unit Converters — Full Versions
- Common Converters
- Length Converter
- Weight and Mass Converter
- Volume Converter
- Temperature Converter
- Area Converter
- Pressure Converter
- Energy Converter
- Volume - Dry Converter
- Currency Converter
- Case Converter
- Power Converter
- Force Converter
- Time Converter
- Speed Converter
- Angle Converter
- Fuel Consumption Converter
- Numbers Converter
- Data Storage Converter
- Engineering Converters
- Velocity - Angular Converter
- Acceleration Converter
- Acceleration - Angular Converter
- Density Converter
- Specific Volume Converter
- Moment of Inertia Converter
- Moment of Force Converter
- Torque Converter
- Heat Converters
- Fuel Efficiency - Mass Converter
- Fuel Efficiency - Volume Converter
- Temperature Interval Converter
- Thermal Expansion Converter
- Thermal Resistance Converter
- Thermal Conductivity Converter
- Specific Heat Capacity Converter
- Heat Density Converter
- Heat Flux Density Converter
- Heat Transfer Coefficient Converter
- Fluids converters
- Flow Converter
- Flow - Mass Converter
- Flow - Molar Converter
- Mass Flux Density Converter
- Concentration - Molar Converter
- Concentration - Solution Converter
- Viscosity - Dynamic Converter
- Viscosity - Kinematic Converter
- Surface Tension Converter
- Permeability Converter
- Light converters
- Luminance Converter
- Luminous Intensity Converter
- Illumination Converter
- Digital Image Resolution Converter
- Frequency Wavelength Converter
- Electricity Converters
- Charge Converter
- Linear Charge Density Converter
- Surface Charge Density Converter
- Volume Charge Density Converter
- Current Converter
- Linear Current Density Converter
- Surface Current Density Converter
- Electric Field Strength Converter
- Electric Potential Converter
- Electric Resistance Converter
- Electric Resistivity Converter
- Electric Conductance Converter
- Electric Conductivity Converter
- Electrostatic Capacitance
- Inductance Converter
- Magnetism converters
- Magnetomotive Force Converter
- Magnetic Field Strength Converter
- Magnetic Flux Converter
- Magnetic Flux Density Converter
- Radiology converters
- Radiation Converter
- Radiation-Activity Converter
- Radiation-Exposure Converter
- Radiation-Absorbed Dose Converter
- Other Converters
- Prefixes Converter
- Data Transfer Converter
- Sound Converter
- Typography Converter
- Volume - Lumber Converter