Free Online Unit converters
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Unit converters
1–12 / 25Area converter
Convert square metric/imperial units, acres and hectares.
Volume converter
Convert cubic and liquid volumes; US and imperial gallons are explicitly distinct.
Speed converter
Convert linear speed, including knots and feet per second.
Pressure converter
Convert pressure using standard atmosphere and conventional millimeters of mercury.
Energy converter
Convert joules, watt-hours, thermochemical calories and electronvolts.
Power converter
Convert watts, mechanical/metric horsepower and BTU per hour.
Force converter
Convert newtons, dynes, pound-force and kilogram-force at standard gravity.
Angle converter
Convert degrees, radians, turns, gradians and angular minutes/seconds.
Duration unit converter
Convert fixed durations; a day means exactly 24 hours, independent of calendars.
Digital storage converter
Convert bits, bytes and explicitly distinguished decimal and binary prefixes.
Data transfer rate converter
Convert bit/byte rates with decimal network prefixes and binary byte rates.
Frequency converter
Convert hertz, RPM and radians per second as cyclic frequency.
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