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This set of unit converters lets you quickly convert from one unit to another. Examples include inches to centimeters, feet to inches, and much more.


Convert between circle, degree (°), gon, gradian (grad), angular mil (µ mil), arcminute ('), quadrant, radian (rad), revolution (rev), right angle, arcsecond (''), sextant, sign, and turn (tr) units.

See All Angle Converters


Convert between square meter (m²), square kilometer (km²), square centimeter (cm²), square millimeter (mm²), square micrometer (μm²), hectare (ha), acre (ac), square yard (yd²), square inch (in²), square foot (ft²), and square mile (mi²) units.

See All Area Converters


Convert between erg (erg), joules (J), kilojoule (kJ), megajoule (MJ), gigajoule (GJ), calorie (cal), kilocalorie (kcal), megacalorie (Mcal), watt hour (Wh), kilowatt hour (kWh), megawatt hour (MWh), watt second (Ws), british thermal unit (Btu), kilo Btu (kBtu), therm (thm), mega Btu (MBtu), quad (Q), electron volt (eV), kilo electron volt (keV), and mega electron volt (MeV) units.

See All Energy Converters


Convert between nanohertz (nHz), microhertz (µHz), millihertz (mHz), centihertz (cHz), decihertz (dHz), hertz (Hz), decahertz (daHz), hectohertz (hHz), kilohertz (kHz), megahertz (MHz), gigahertz (GHz), terahertz (THz), revs per second (rps), revs per minute (rpm), revs per hour (rph), radians per second (rad/s), radians per minute (rad/min), radians per hour (rad/h), degrees per second (°/s), degrees per minute (°/min), and degrees per hour (°/hr) units.

See All Frequency Converters


Convert between inch ("), centimeter (cm), millimeter (mm), foot (ft), yard (yd), meter (m), kilometer (km), and mile (mi) units.

See All Length Converters

Number System

Convert between binary, decimal, hexadecimal, and octal units.

See All Number System Converters


Convert between milliwatt (mW), watt (W), kilowatt (kW), megawatt (MW), gigawatt (GW), decibel-milliwatt (dBm), decibel-watt (dBW), imperial horsepower (hp(I)), electric horsepower (ehp), and BTU/hr units.

See All Power Converters


Convert between foot per second (ft/s), foot per minute (ft/m), foot per hour (ft/h), kilometer per second (km/s), kilometer per minute (km/m), kilometer per hour (km/h), knot (kn, kt), knots (kn, kt) (UK), mach, meter per second (m/s), meter per minute (m/min), meter per hour (m/h), mile per second (mi/s), mile per minute (mi/m), mile per hour (mph), yard per second (yd/s), yard per minute (yd/m), yard per hour (yd/h), speed of light (c), and speed of sound (c) units.

See All Speed Converters


Convert between Celsius (°C), Farenheit (°F), Rankine (°R), and Kelvin (K) units.

See All Temperature Converters


Convert between nanosecond (ns), microsecond (µs), millisecond (ms), second (s), minute (min), hour (hr), day (d), week (wk), month (mo), year (yr), decade, and century (c) units.

See All Time Converters


Convert between liter (l), milliliter (ml), gallon (gal) (US), gallon (imperial) (gal), fluid ounces (fl oz) (US), fluid ounce (fl oz) (UK), cup (US), cup (metric), cup (imperial), deciliter (dL), pint (pt) (US), pint (pt) (UK), quart (qt) (US), tablespoon (tbsp) (US), tablespoon (tbsp) (metric), tablespoon (tbsp) (imperial), teaspoon (tsp) (US), teaspoon (tsp) (metric), and teaspoon (tsp) (imperial) units.

See All Volume Converters


Convert between gram (g), pound (lb), kilogram (kg), ounce (oz), cup, teaspoon (tsp), tablespoon (tbsp), and stone (st) units.

See All Weight Converters