単位変換

Convert length, weight, temperature, area, volume, speed and more — instantly and accurately, right in your browser.

長さ変換

Convert between metres, kilometres, miles, feet, inches and more. Ideal for engineering, travel and everyday measurements.

Convert kilograms, grams, pounds, ounces, stones and tonnes. Perfect for cooking, shipping and fitness tracking.

Convert Celsius, Fahrenheit and Kelvin instantly. Useful for weather, cooking, science and travel.

Convert square metres, acres, hectares, square feet and more. Great for real estate, farming and construction.

Convert litres, gallons, cups, millilitres and more. Handy for recipes, fuel and liquid measurements.

Convert km/h, mph, m/s, knots and feet/second. Useful for driving, sports, aviation and sailing.

Convert seconds, minutes, hours, days, weeks, months and years quickly and accurately.

Convert bar, PSI, pascal, atmosphere and mmHg. Essential for tyres, weather and engineering.

Convert joules, calories, kilowatt-hours, BTU and more. Useful for nutrition, physics and utilities.

Convert watts, kilowatts, horsepower and BTU/second. Ideal for engines, appliances and electronics.

Convert degrees, radians, gradians, arcminutes and arcseconds for maths, engineering and navigation.

Convert bytes, kilobytes, megabytes, gigabytes, terabytes and bits for storage and bandwidth.

Convert hertz, kilohertz, megahertz, gigahertz and RPM for electronics, audio and signals.