Unit converters | agent view
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All unit converters
Angle
Convert between degrees, radians, and turns.
Area
Convert between square meters, square feet, acres, and other area units.
Celsius to fahrenheit
Direction-specific preset and reverse mode.
Cm to inches
Preset cm/inches with decimal/fraction choices.
Data storage
Convert between bits, bytes, decimal storage units, and binary storage units.
Energy
Convert between joules, calories, watt-hours, and kilowatt-hours.
Fahrenheit to celsius
Direction-specific examples and reverse mode.
Grams to ounces
Distinguish avoirdupois from troy ounces.
Inches to cm
Decimal/fraction input and explicit output rounding.
Kg to lb
Preset kg/lb direction, reciprocal input and precision.
Km to miles
Use international mile.
Lbs to kg
Direction-specific input and examples with verified constant.
Length
Convert between meters, feet, inches, and other length units.
Liters to gallons
US liquid versus Imperial gallon selector visible by default.
Meters to feet
Decimal feet versus feet-and-inches outputs explicitly separated.
Mm to inches
Decimal/fractional inches and precision controls.
Mph to kmh
Preset speed direction and consistent decimal precision.
Power
Convert between watts, kilowatts, megawatts, and horsepower.
Pressure
Convert between pascals, kilopascals, bar, atmospheres, and psi.
Speed
Convert between meters per second, kilometers per hour, miles per hour, and knots.
Temperature
Convert between Celsius, Fahrenheit, and Kelvin.
Time units
Convert between milliseconds, seconds, minutes, hours, days, and weeks.
Volume
Convert between liters, milliliters, and US or Imperial volume units.
Weight
Convert between kilograms, pounds, ounces, and other mass units.
Convert the quantity, not just the number
A unit conversion expresses the same quantity using another scale. Prefixes, regional conventions and similarly named units can change the conversion factor, so selecting the exact source and destination units matters.
How to choose your next step
Check whether the measurement is length, area, volume, mass or another quantity. A conversion factor for length cannot be applied unchanged to area or volume.
Common questions about unit converters
Why are some conversions not simple multiplication?
Some scales include an offset as well as a factor. Temperature scales are a familiar example, so use the appropriate formula for the selected units.
Can more decimal places make a measurement more accurate?
No. Extra displayed digits do not add precision to the original measurement. Keep rounding consistent with the accuracy of the input.