Common Converters

Convert between metric and imperial distance units with formulas, examples, and lookup tables.

Convert mass values across grams, kilograms, pounds, ounces, and tonnes.

Convert between Celsius, Fahrenheit, and Kelvin with exact formulas and worked examples.

Switch between square meters, square feet, acres, hectares, and more.

Convert liquid and bulk volume units with practical examples and fast reference tables.

Convert dry-volume units for grain, produce, and historical dry-capacity measures.

Convert among km/h, mph, m/s, and knots with comparison tables.

Convert seconds, minutes, hours, days, weeks, and years.

Convert pressure values across Pa, kPa, bar, psi, and atm.

Convert between joules, kilojoules, calories, kWh, and BTU.

Convert watts, kilowatts, megawatts, and horsepower.

Convert force units including newtons, kilogram-force, pound-force, dyne, and kip-force.

Convert fuel economy and fuel consumption units such as km/L, mpg, L/100 km, and gallons per mile.

Convert bits, bytes, decimal and binary data units, and legacy storage media capacities.