Explore our collection of conversion calculators organized by subcategory.
Convert between millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles.
Convert between grams, kilograms, ounces, pounds, tons, and stones.
Convert between Celsius, Fahrenheit, and Kelvin temperature scales.
Convert between square meters, square feet, acres, hectares, and more.
Convert between liters, gallons, cubic meters, fluid ounces, cups, and more.
Convert between meters per second, kilometers per hour, miles per hour, knots, and feet per second.
Convert between milliseconds, seconds, minutes, hours, days, weeks, months, and years.
Convert between joules, calories, kilowatt-hours, BTU, and electronvolts.
Convert between pascals, bars, atmospheres, PSI, mmHg, and torr.
Convert between bytes, kilobytes, megabytes, gigabytes, terabytes, and petabytes.
Convert between degrees, radians, and gradians.
Convert between MPG, L/100km, and km/L.
Convert between watts, kilowatts, horsepower, and BTU per hour.
Convert between newtons, kilonewtons, pounds-force, and kilograms-force.
Convert between newton-meters, pound-feet, and kilogram-centimeters.
Convert between hertz, kilohertz, megahertz, and gigahertz.
Convert between amperes, milliamperes, and kiloamperes.
Convert between volts, millivolts, and kilovolts.
Convert between ohms, kiloohms, and megaohms.
Convert between farads, microfarads, nanofarads, and picofarads.
Convert height between feet/inches and centimeters/meters.
Convert distances including nautical miles, leagues, and other specialized units.
Convert miles to kilometers and kilometers to miles. Automatic calculations, charts, and PDF export.
Convert inches to centimeters and centimeters to inches with automatic calculations and visual charts.
Convert feet to meters and vice versa.
Convert yards to meters and meters to yards quickly and accurately.
Convert nautical miles to kilometers, miles, or meters.
Convert pounds to kilograms and vice versa.
Convert ounces to grams and vice versa.
Convert stones to kilograms and vice versa.
Convert tonnes to kilograms and vice versa.
Convert liters to gallons and vice versa.
Convert cubic meters to other volume units.
Convert between US cups and milliliters (mL). Quickly convert cups to mL and mL to cups with automatic calculation and PDF export.
Convert fluid ounces to milliliters and other volume units.
Convert temperatures between Celsius and Fahrenheit instantly. Supports both directions with instant results and charting.
Convert square feet to square meters and vice versa.
Convert acres to hectares and vice versa.
Convert square kilometers (km²) to square miles (mi²) and vice versa. Precise conversions via square meters with instant results and charts.