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Unit Converters

Convert length, weight, temperature, area, volume, speed, time, data, energy, pressure, power and currency.

Length ConverterMeters, feet, inches, miles, km and more.Weight ConverterKilograms, pounds, ounces, stones and tons.Temperature ConverterCelsius, Fahrenheit, Kelvin and Rankine.Area ConverterSquare meters, square feet, acres, hectares.Volume ConverterLiters, gallons, cups, fluid ounces and more.Speed Converterkm/h, mph, m/s, knots and Mach.Time ConverterSeconds, minutes, hours, days, weeks, years.Data Storage ConverterBytes, KB, MB, GB, TB, and KiB, MiB, GiB.Energy ConverterJoules, calories, kWh, BTU and more.Pressure Converterpsi, bar, kPa, atm, mmHg and more.Power ConverterWatts, kilowatts, horsepower, BTU/h.Currency ConverterDaily ECB reference exchange rates.

About Unit Converters

Unit converters use exact internationally defined conversion factors (for example, 1 inch = 2.54 cm exactly) and show the result in every related unit at once. The currency converter uses published reference exchange rates and shows the date of the rates.