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Units & converters

Convert lengths, areas, temperatures and technical units. Each tool shows the factor or the complete conversion formula.

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61 calculators

61 calculators available.

Units & convertersFuel consumption converterCompare fuel consumption in l/100 km, km/l, US MPG and imperial MPG. US and imperial gallons remain distinct.
Units & convertersTorque converterConvert torque between newton metres, newton centimetres, pound-force feet and other units.
Units & convertersVolume flow rate converterConvert flow rates per second, minute or hour, such as litres per minute to cubic metres per hour.
Units & convertersDensity converterCompare densities in kg/m³, g/cm³, kg/l and customary units under the same material conditions.
Units & convertersForce converterConvert force between newtons, kilonewtons, kilogram-force, pound-force and dynes.
Units & convertersAcceleration converterConvert acceleration between m/s², standard gravity gₙ and other length units per second squared.
Units & convertersAngular velocity converterConvert rotational speeds in rpm or revolutions per second to angular velocities in rad/s or degrees per second.
Units & convertersAngular acceleration converterConvert changes in angular velocity between rad/s², degrees per second squared and rpm/s.
Units & convertersDynamic viscosity converterCompare dynamic viscosities in pascal seconds, millipascal seconds, poise and centipoise.
Units & convertersKinematic viscosity converterConvert kinematic viscosity between m²/s, mm²/s, stokes and square feet per second.
Units & convertersTemperature difference converterConvert temperature changes and intervals in kelvin, Celsius, Fahrenheit or Rankine without a zero-point offset.
Units & convertersThermal conductivity converterPut thermal conductivities from material data sheets into the same unit, such as W/(m·K).
Units & convertersThermal resistance converterConvert thermal resistance between K/W, °C/W and °F·h/Btu. Area-specific R-values have a separate converter.
Units & convertersThermal insulance and R-value converterCompare area-specific thermal resistance in m²·K/W, US R-values, clo and tog.
Units & convertersSpecific heat capacity converterConvert specific heat capacity between J/(kg·K), kJ/(kg·K), thermochemical calories and Btu.
Units & convertersHeat flux converterConvert heat transfer rates per area between W/m², kW/m², W/cm² and Btu per hour per square foot.
Units & convertersHeat transfer coefficient converterConvert heat transfer coefficients between W/(m²·K), kW/(m²·K) and customary Btu units.
Units & convertersTypography unit converterConvert type and layout dimensions between DTP points, picas, CSS pixels, millimetres, centimetres and inches.
Units & convertersMass moment of inertia converterCompare mass moments of inertia in kg·m², kg·cm², g·cm² and pound-foot or pound-inch units.
Units & convertersSpecific volume converterConvert volume per mass between m³/kg, l/kg, cm³/g and ft³/lb without changing the material conditions.
Units & convertersMass flow rate converterConvert mass flow rates in kilograms, grams, tonnes or pounds per second, minute or hour.
Units & convertersMolar flow rate converterConvert molar flow rates between mol/s, mol/min, mol/h, kmol/h and mmol/s.
Units & convertersSurface tension converterCompare surface tension in N/m, mN/m, dyn/cm and pound-force per foot.
Units & convertersPorous medium permeability converterConvert intrinsic permeability of porous materials between m², µm², darcy and millidarcy.
Units & convertersLuminous intensity converterScale photometric luminous intensity between candela, millicandela and kilocandela.
Units & convertersLuminance converterConvert luminance between cd/m² or nit, stilb, lambert and foot-lambert.
Units & convertersIlluminance converterCompare illuminance in lux, kilolux, foot-candles and phot.
Units & convertersElectric charge converterConvert electric charge between coulombs, millicoulombs, microcoulombs and ampere hours.
Units & convertersLinear charge density converterConvert electric charge per length in C/m, µC/m, nC/m and units per centimetre.
Units & convertersSurface charge density converterConvert electric charge per area between C/m², µC/m² and units per square centimetre.
Units & convertersVolume charge density converterConvert electric charge per volume in coulombs or microcoulombs per cubic metre or cubic centimetre.
Units & convertersElectric current converterConvert electric current between amperes, milliamperes, microamperes, kiloamperes and abamperes.
Units & convertersLinear current density converterConvert current per length between A/m, A/cm, A/mm and mA/m.
Units & convertersCurrent density converterCompare electric current density in amperes per square metre, square centimetre or square millimetre.
Units & convertersElectric field strength converterConvert electric field strength between V/m, kV/m, V/cm, kV/cm and N/C.
Units & convertersVoltage converterScale voltage between volts, millivolts, microvolts, kilovolts and megavolts.
Units & convertersElectrical resistance converterConvert electrical resistance between ohms, milliohms, microohms, kiloohms and megaohms.
Units & convertersElectrical resistivity converterCompare material resistivities in Ω·m, Ω·cm, µΩ·cm and Ω·mm²/m.
Units & convertersElectrical conductance converterConvert electrical conductance between siemens, millisiemens, microsiemens, kilosiemens and the historical mho.
Units & convertersElectrical conductivity converterConvert conductivity of materials or solutions between S/m, S/cm, mS/cm, µS/cm and mS/m.
Units & convertersCapacitance converterConvert electrical capacitance between farads, millifarads, microfarads, nanofarads and picofarads.
Units & convertersInductance converterCompare inductance in henries, millihenries, microhenries and nanohenries.
Units & convertersMagnetomotive force converterConvert magnetomotive force between ampere-turns, kiloampere-turns and gilberts.
Units & convertersMagnetic field strength converterConvert magnetic field strength H between A/m, kA/m, A/cm and oersted.
Units & convertersMagnetic flux converterConvert magnetic flux between webers, milliwebers, microwebers and maxwells.
Units & convertersMagnetic flux density converterCompare magnetic flux density in tesla, millitesla, microtesla, nanotesla and gauss.
Units & convertersRadioactivity converterConvert radioactive activity between becquerels and curies, including their prefixes.
Units & convertersRadiation exposure converterConvert radiation exposure between coulombs per kilogram, millicoulombs per kilogram, roentgens and milliroentgens.
Units & convertersAbsorbed dose converterConvert absorbed dose between grays, milligrays, micrograys, rad and millirad.
Units & convertersEquivalent dose converterConvert equivalent dose between sieverts, millisieverts, microsieverts, rem and millirem.
Units & convertersLength converterConvert lengths from millimetres to kilometres, as well as inches, feet, yards, international miles and nautical miles.
Units & convertersArea converterCompare areas in mm², cm², m², hectares, km², square feet and acres based on the international foot.
Units & convertersVolume converterConvert volumes between millilitres, litres, cubic metres, cubic centimetres, US gallons and imperial gallons.
Units & convertersMass converterConvert mass between milligrams, grams, kilograms, tonnes, ounces and pounds.
Units & convertersSpeed converterCompare speeds in m/s, km/h, mph, knots and feet per second.
Units & convertersEnergy converterConvert energy between joules, kilojoules, megajoules, watt hours, kilowatt hours and electronvolts.
Units & convertersPower converterConvert power between watts, kilowatts, megawatts, metric horsepower (PS) and mechanical horsepower (hp).
Units & convertersPressure converterConvert pressure between pascals, hectopascals, kilopascals, megapascals, bar, psi and standard atmospheres.
Units & convertersTime duration converterConvert durations between milliseconds, seconds, minutes, hours, days and weeks.
Units & convertersTemperature converterConvert absolute temperatures between Celsius, Fahrenheit and kelvin. The limits of each scale are checked.
Units & convertersUnit converterConvert length, area, volume, mass, speed, energy, power, pressure and time in one tool.