Convert between square meters, square feet, acres, hectares, and other common area units.
Converters & Calculators
Browse every unit converter and everyday calculator on ConvertReference. Start from a category below to find the tool you need.
Converter Categories
🧮 Length
Convert distances between meters, kilometers, miles, feet, inches, and other common length units.
» Length converters
📐 Area
⚖️ Mass
Convert weights between grams, kilograms, pounds, ounces, stones, and other common mass units.
⏱️ Time
Convert durations between seconds, minutes, hours, days, weeks, years, and other common time units.
🌡️ Pressure
Convert between pascals, bars, psi, atmospheres, torr, and other common pressure units.
🚀 Speed
Convert speeds between meters per second, kilometers per hour, miles per hour, knots, and other common speed units.
🧪 Volume
Convert volumes between milliliters, liters, cups, pints, quarts, gallons, and other common volume units.
Editorial note
All converters on ConvertReference use exact, scientifically grounded factors and a consistent rounding policy.