Free Unit Converter Tools – Length, Weight, Volume, More
Instantly convert between units like length, weight, temperature, and speed. Our simple converters help students, engineers, and everyday users.
Available Unit Converter Tools
Length Converter
Convert between meters, feet, inches, kilometers, miles, and other length units.
Try this tool →Area Converter
Convert between square meters, acres, hectares, square feet, and other area units.
Try this tool →Weight Converter
Convert between kilograms, pounds, ounces, grams, and other weight units.
Try this tool →Volume Converter
Convert between liters, gallons, cups, milliliters, and other volume units.
Try this tool →Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, and other temperature scales.
Try this tool →Time Converter
Convert between seconds, minutes, hours, days, weeks, and other time units.
Try this tool →Currency Converter
Convert between different world currencies with real-time exchange rates.
Try this tool →Digital Converter
Convert between bytes, kilobytes, megabytes, gigabytes, and other digital storage units.
Try this tool →Parts Per Converter
Convert between ppm, ppb, ppt, and other parts per notation units.
Try this tool →Pace Converter
Convert between min/km, min/mile, and other pace units for running and cycling.
Try this tool →Pressure Converter
Convert between PSI, bar, pascal, atmosphere, and other pressure units.
Try this tool →Current Converter
Convert between amperes, milliamperes, microamperes, and other electric current units.
Try this tool →Voltage Converter
Convert between volts, millivolts, kilovolts, and other electric voltage units.
Try this tool →Power Converter
Convert between watts, kilowatts, horsepower, and other power units.
Try this tool →Reactive Power Converter
Convert between VAR, kVAR, MVAR, and other reactive power units.
Try this tool →Apparent Power Converter
Convert between VA, kVA, MVA, and other apparent power units.
Try this tool →Energy Converter
Convert between joules, calories, BTU, kWh, and other energy units.
Try this tool →Reactive Energy Converter
Convert between VARh, kVARh, MVARh, and other reactive energy units.
Try this tool →Volumetric Flow Rate Converter
Convert between L/s, m³/h, GPM, CFM, and other flow rate units.
Try this tool →Illuminance Converter
Convert between lux, foot-candle, phot, and other illuminance units.
Try this tool →Frequency Converter
Convert between hertz, kilohertz, megahertz, gigahertz, and other frequency units.
Try this tool →Angle Converter
Convert between degrees, radians, gradians, and other angle measurement units.
Try this tool →Number to Word Converter
Convert numbers to written words in English and other languages.
Try this tool →Word to Number Converter
Convert written words back to numerical digits and numbers.
Try this tool →Torque Converter
Convert between Newton-meters, foot-pounds, inch-pounds, and other torque units.
Try this tool →Charge Converter
Convert between coulombs, ampere-hours, milliampere-hours, and other electric charge units.
Try this tool →Number to Roman Numerals
Convert regular numbers to Roman numeral notation (I, V, X, L, C, D, M).
Try this tool →