Unit Converters calculators

Convert between 8 acceleration units including m/s², ft/s², standard gravity (g), galileo, and km/h per second. Enter a value, choose units, and get the full conversion table instantly.

Convert between degrees, radians, gradians, turns, arcminutes, arcseconds, and NATO mils instantly.

Convert area between square millimeters, square centimeters, square meters, square kilometers, square inches, square feet, square yards, acres, and hectares.

Convert temperature instantly between Celsius, Fahrenheit, and Kelvin. Includes a quick-reference table of common temperatures.

Convert clothing sizes for women's tops, men's tops, women's pants, men's pants, and women's dresses between US, UK, EU, IT, FR, and AU sizing systems.

Convert between 12 cooking volume units including US cups, tablespoons, teaspoons, fluid ounces, milliliters, liters, and UK measures. Enter a value, choose units, and get the full table instantly.

Convert between bits, bytes, kilobytes, megabytes, gigabytes, terabytes, and binary equivalents (KiB, MiB, GiB, TiB).

Convert between 10 data rate units including Mbps, Gbps, kbps, bytes per second, kibibits, mebibits, and more. Enter a value, choose units, and get the full conversion table instantly.

Convert between 10 density units including kg/m³, g/cm³, lb/ft³, lb/in³, slug/ft³, and more. Enter a value, choose units, and get the full conversion table instantly.

Convert energy between joules, kilojoules, calories, kilocalories, watt-hours, kilowatt-hours, BTU, and electronvolts. Covers physics, nutrition, and electricity.

Convert between 8 force units including Newton, kilonewton, pound-force, kilogram-force, dyne, and kip. Enter a value, choose units, and get the full conversion table instantly.

Convert between Hz, kHz, MHz, GHz, THz, RPM, radians per second, degrees per second, and BPM instantly.

Convert fuel economy between MPG (US), MPG (UK), km/L, L/100km, and L/100mi instantly. See all equivalents in a single table. Useful for comparing cars across countries.

Convert length between millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles. See all unit equivalents at once.

Convert paper sizes between millimeters, centimeters, inches, and pixels (96 dpi) for A4, Letter, Legal, A3, and 13 other standard sizes. Get orientation, aspect ratio, and pixel dimensions instantly.

Convert weight between pounds, kilograms, ounces, grams, stone, milligrams, metric tons, and short tons using exact NIST conversion factors.

Convert between watts, kilowatts, megawatts, horsepower, PS, BTU per hour, and more power units instantly.

Convert shoe sizes between US Men's, US Women's, UK, EU, CM (foot length), and JP systems instantly. Enter your size, select the system, and see all equivalents from a verified lookup table.

Convert speed between mph, km/h, m/s, knots, ft/s, and Mach number. Useful for travel, aviation, physics, and everyday comparisons.

Convert between Celsius, Fahrenheit, Kelvin, and Rankine instantly. See all four units at once.

Convert time between milliseconds, seconds, minutes, hours, days, weeks, months, and years. Useful for programming, project planning, and everyday calculations.

Convert between 8 torque units including Newton-meter, pound-force foot, kilogram-force meter, and more. Enter a value, choose units, and get the full conversion table instantly.

Convert between grams, kilograms, pounds, ounces, stone, metric tons, and US and long tons instantly.