Convert between units of length, weight, temperature and more
150 free calculators
Convert millimeters to inches instantly.
Convert inches to millimeters instantly.
Convert centimeters to inches instantly.
Convert inches to centimeters instantly.
Convert meters to feet instantly.
Convert feet to meters instantly.
Convert kilometers to miles instantly.
Convert miles to kilometers instantly.
Convert yards to meters instantly.
Convert meters to yards instantly.
Convert feet to centimeters instantly.
Convert centimeters to feet instantly.
Convert inches to feet instantly.
Convert feet to inches instantly.
Convert nautical miles to statute miles instantly.
Convert statute miles to nautical miles instantly.
Convert light years to kilometers and miles.
Convert parsecs to light years and kilometers.
Convert fathoms to meters instantly.
Convert chains to meters instantly.
Convert kilograms to pounds instantly.
Convert pounds to kilograms instantly.
Convert grams to ounces instantly.
Convert ounces to grams instantly.
Convert stone to kilograms instantly.
Convert kilograms to stone instantly.
Convert metric tons to kilograms instantly.
Convert kilograms to metric tons instantly.
Convert milligrams to grams instantly.
Convert grams to milligrams instantly.
Convert troy ounces to grams for precious metals.
Convert grams to troy ounces for precious metals.
Convert carats to grams for gemstones.
Convert grains to grams.
Convert quintals to kilograms.
Convert Celsius to Fahrenheit instantly.
Convert Fahrenheit to Celsius instantly.
Convert Celsius to Kelvin instantly.
Convert Kelvin to Celsius instantly.
Convert Fahrenheit to Kelvin instantly.
Convert liters to US gallons instantly.
Convert US gallons to liters instantly.
Convert milliliters to fluid ounces instantly.
Convert fluid ounces to milliliters instantly.
Convert cups to milliliters instantly.
Convert milliliters to cups instantly.
Convert pints to liters instantly.
Convert liters to pints instantly.
Convert quarts to liters instantly.
Convert liters to quarts instantly.
Convert tablespoons to milliliters instantly.
Convert milliliters to tablespoons instantly.
Convert teaspoons to milliliters instantly.
Convert milliliters to teaspoons instantly.
Convert cubic meters to liters instantly.
Convert liters to cubic meters instantly.
Convert oil barrels to liters instantly.
Convert cubic feet to liters instantly.
Convert cubic inches to milliliters instantly.
Convert gallons to cups instantly.
Convert square meters to square feet instantly.
Convert square feet to square meters instantly.
Convert acres to square meters instantly.
Convert square meters to acres instantly.
Convert hectares to acres instantly.
Convert acres to hectares instantly.
Convert square kilometers to square miles instantly.
Convert square miles to square kilometers instantly.
Convert square yards to square meters instantly.
Convert square meters to square yards instantly.
Convert miles per hour to kilometers per hour instantly.
Convert kilometers per hour to miles per hour instantly.
Convert meters per second to kilometers per hour instantly.
Convert kilometers per hour to meters per second instantly.
Convert knots to kilometers per hour instantly.
Convert kilometers per hour to knots instantly.
Convert Mach number to kilometers per hour.
Convert feet per second to meters per second.
Convert bytes to kilobytes instantly.
Convert kilobytes to megabytes instantly.
Convert megabytes to gigabytes instantly.
Convert gigabytes to terabytes instantly.
Convert bits to bytes instantly.
Convert kilobytes to bytes instantly.
Convert megabytes to bytes instantly.
Convert gigabytes to bytes instantly.
Convert terabytes to gigabytes instantly.
Convert petabytes to terabytes and gigabytes.
Convert joules to calories instantly.
Convert calories to joules instantly.
Convert kWh to joules instantly.
Convert joules to kWh instantly.
Convert BTU to joules instantly.
Convert joules to BTU instantly.
Convert eV to joules instantly.
Convert watt-hours to joules instantly.
Convert PSI to bar instantly.
Convert bar to PSI instantly.
Convert atmospheres to PSI instantly.
Convert pascals to PSI instantly.
Convert millimeters of mercury to PSI.
Convert hours to minutes instantly.
Convert minutes to hours instantly.
Convert days to hours instantly.
Convert hours to days instantly.
Convert weeks to days instantly.
Convert days to weeks instantly.
Convert months to days (30-day average).
Convert years to days.
Convert seconds to minutes instantly.
Convert minutes to seconds instantly.
Convert US shoe sizes to EU sizes.
Convert EU shoe sizes to US sizes.
Convert UK shoe sizes to US sizes.
Convert US shoe sizes to UK sizes.
Convert men's to women's shoe sizes.
Convert US dress sizes to international sizes.
Convert ring sizes between US, UK, and diameter.
Convert US bra sizes to international sizes.
Convert hat sizes between US and metric.
Convert glove sizes from hand measurements.
Convert cups to grams for water and similar liquids.
Convert grams to cups for water and similar liquids.
Convert tablespoons to grams for liquids.
Convert grams to tablespoons for liquids.
Convert teaspoons to grams for liquids.
Convert fluid ounces to cups instantly.
Convert cups to fluid ounces instantly.
Convert butter sticks to grams.
Convert grams to butter sticks.
Convert cups of all-purpose flour to grams.
Convert cups of granulated sugar to grams.
Convert milliliters to grams for water.
Convert grams to milliliters for water.
Convert oven temperatures between C and F.
Convert weight to volume for common ingredients.
Convert miles per hour to feet per second.
Convert feet per second to miles per hour.
Convert torque from Nm to lb-ft.
Convert torque from lb-ft to Nm.
Convert horsepower to kilowatts.
Convert kilowatts to horsepower.
Estimate LED wattage from lumens.
Estimate LED lumens from wattage.
Convert dBm to watts for RF power.
Convert watts to dBm for RF power.
Convert pixels to centimeters based on DPI.
Convert centimeters to pixels based on DPI.
Convert between DPI and PPI for print/screen.
Calculate aspect ratio from dimensions.
