Calcometry
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Unit converters
Metric and imperial converters for length, weight, temperature, volume, speed, and land area — each tool works both directions instantly.
12 tools in this section
Meters to Miles
Convert meters to miles and miles to meters instantly.
Kg to Lbs
Convert kilograms to pounds and pounds to kilograms.
Celsius to Fahrenheit
Convert °C to °F for weather, cooking, and travel.
Inches to Cm
Convert inches to centimeters and centimeters to inches.
Km to Miles
Convert kilometers to miles for driving and running.
Liters to Gallons
Convert liters to US gallons and back.
Feet to Meters
Convert feet to meters and meters to feet.
Mph to Kmh
Convert miles per hour to kilometers per hour.
Oz to Grams
Convert ounces to grams for cooking, shipping, and nutrition labels.
Mm to Inches
Convert millimeters to inches for 3D printing, bolts, and precision work.
Acres to Hectares
Convert acres to hectares for land, farms, and real estate.
Stone to Kg
Convert stone to kilograms for UK body weight and health records.