Unit Converter

Unit Converter

All Units. One Powerful Converter.

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Length14 unitsArea10 unitsVolume14 unitsWeight/Mass11 unitsTemperature4 unitsSpeed7 units

All Converters

Browse with tables & formulas →
Length14 unitsArea10 unitsVolume14 unitsWeight/Mass11 unitsTemperature4 unitsSpeed7 unitsTime12 unitsDigital Storage11 unitsData Transfer8 unitsPressure8 unitsEnergy9 unitsPower7 unitsFrequency6 unitsAngle6 unitsFuel Consumption4 unitsForce6 unitsTorque4 unitsAngular Velocity10 unitsAcceleration10 unitsAngular Acceleration6 unitsDensity11 unitsSpecific Volume8 unitsMoment of Inertia8 unitsMoment of Force11 unitsFuel Efficiency (Mass)7 unitsFuel Efficiency (Volume)6 unitsTemperature Interval5 unitsThermal Expansion8 unitsThermal Resistance5 unitsThermal Conductivity10 unitsSpecific Heat Capacity9 unitsHeat Density10 unitsHeat Flux Density9 unitsHeat Transfer Coefficient9 unitsFlow (Volume)19 unitsFlow (Mass)15 unitsFlow (Molar)12 unitsMass Flux Density7 unitsConcentration (Molar)9 unitsConcentration (Solution)13 unitsViscosity (Dynamic)13 unitsViscosity (Kinematic)9 unitsSurface Tension10 unitsPermeability9 unitsElectric Current4 unitsElectric Potential5 unitsElectric Charge12 unitsLinear Charge Density7 unitsSurface Charge Density6 unitsVolume Charge Density6 unitsLinear Current Density8 unitsSurface Current Density7 unitsElectric Field Strength9 unitsElectric Resistance8 unitsElectric Resistivity9 unitsElectric Conductance9 unitsElectric Conductivity12 unitsElectrostatic Capacitance10 unitsInductance9 unitsMagnetomotive Force6 unitsMagnetic Field Strength9 unitsMagnetic Flux13 unitsMagnetic Flux Density17 unitsRadiation - Exposure8 unitsRadiation - Absorbed Dose11 unitsRadiation - Activity15 unitsRadiation - Dose Equivalent10 unitsSound Level3 unitsSound Pressure12 unitsTypography11 unitsVolume - Lumber11 unitsIlluminance (Illumination)4 unitsLuminance9 unitsLuminous Intensity5 unitsDigital Image Resolution7 unitsFrequency-Wavelength10 unitsMetric Prefixes15 unitsPercentage CalculatorCalculatorDiscount CalculatorCalculatorSales Tax CalculatorCalculatorVAT CalculatorCalculatorCooking ConverterBy ingredient

Frequently Asked Questions

How do I use Unit Converter?

Select a converter category from the homepage grid or sidebar navigation, enter a numeric value in the "From" field, choose your source and target units from the dropdown menus, and the converted result appears instantly. You can also swap units with one click or copy the result to your clipboard for use elsewhere.

Is Unit Converter free to use?

Yes, Unit Converter is completely free to use with no registration, sign-up, or downloads required. All conversion tools and calculators are available at no cost and work on any device with a web browser, including desktops, laptops, tablets, and smartphones.

How many unit categories are available?

Unit Converter offers over 80 unit conversion categories covering common measurements like length, weight, temperature, and volume, as well as specialized scientific and engineering categories including electricity, magnetism, heat transfer, fluid mechanics, light and optics, radiology, and more. There are also dedicated calculators for percentage, discount, sales tax, and VAT computations.

Are the conversion results accurate?

All conversions use internationally recognized standards and precise mathematical formulas. Conversion factors are based on SI units and official measurement standards. Results are displayed with up to 10 significant digits of precision to ensure accuracy for both everyday use and scientific applications.

Can I use Unit Converter on my phone?

Yes, Unit Converter is fully responsive and optimized for mobile devices. The interface automatically adapts to your screen size, providing an excellent experience on smartphones, tablets, laptops, and desktops. The mobile version includes a collapsible sidebar, touch-friendly controls, and an optimized layout for small screens.