Convert length, weight, temperature, speed, and area between common units — pick a category, choose your units, and get an instant result.
Meter, kilometer, mile, yard, foot, inch, centimeter, millimeter.
Kilogram, gram, pound, ounce, metric ton, milligram.
Celsius, Fahrenheit, Kelvin — using offset-based conversion, not a simple ratio.
Meters per second, kilometers per hour, miles per hour, knots, feet per second.
Square meter, square kilometer, square mile, hectare, acre, square foot.
Length, weight, temperature, speed, and area, each with several common units to choose from on both sides of the conversion.
Celsius, Fahrenheit, and Kelvin don't share a common zero point, so converting between them needs an offset formula rather than a simple multiplication factor.
Conversions use standard internationally recognized factors and display up to six decimal places — precise enough for everyday, cooking, fitness, and DIY use.