Online Unit Converters and Calculators

The easiest online resource for free dynamic unit converters and calculators. Compare and convert multiple units from science, business, industry and every day usage.

Percentages Calculator

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More Online Converters & Calculators

Unix Epoch Time Shapes & Volumes
Unix TimesShapes
Weight calculator Temperature scales
BMI Weight / BMR Temperatures

Area Convert square metre, square Kilometre, Hectare, Are, Acre, square Mile, square Yard, square Millimetre, ...

Data Convert Data Transfer and Data Storage. Convert Bits to Bytes, Word, Kilobits to Kilobytes, Bits to Megabytes , Megabits, Gigabytes, Terabytes, ...

Densities Kilogram/cubic metre, Gram/cubic metre, Gram/cubic Liter, Pound/cubic Foot, Ounce/cubic Inch, Ounce/Gallon conversions and more ...

Number Bases Calculate & convert Binary to Decimal, Decimal to Octal, Decimal to Binary, Hex to Decimal, Hex to Binary and to any base from Base-2 to Base-64.

Time Convert Second, Minute, Hour, Day, Tropical Year, Sidereal Year, Mean Year, Leap Year, Year, Decade, Century, Millennium, Millisecond, Microsecond.

Speed &Velocity Linear and Angular. Convert KM to MPH, MPH to KM, Kilometre/Hour, metre/Second, Mile/Hour, Yard/Second, Mach, Speed of Light, Knot, ...

Volume Convert Liquid, Dry and Lumber. Liter, cubic metre, Barrel, Gallon, Quart, Pint, Ounce, Teaspoon, and more ...

More...   Unit Conversions of Angles, Accelerations, Fuel & Petrol Efficiency, Light Luminance, Mass Flux Density, Sound, SI, Metric and Imperial units conversions.