Unit converters
Length, weight, temperature, area, volume, speed, data size and kitchen measurement converters.
8 tools
Length converterConvert inches to centimetres, feet to metres or miles to kilometres. The converter uses exact definitions (1 inch = 2.54 cm) and shows every unit at once.Temperature converterConvert degrees Celsius to Fahrenheit or kelvins and back. Includes formulas, a table of key temperatures and oven-temperature examples.Area ConverterConvert an area value between metric and imperial units, including square metres, square feet, acres and hectares. Results update instantly with common reference values.Data Size ConverterConvert digital storage values from bits and bytes through kilobytes, megabytes, gigabytes and tebibytes. Compare decimal and binary prefixes clearly.Kitchen converterConvert grams to cups (US 240 ml or metric 250 ml), tablespoons, teaspoons, ounces and millilitres - and back - for flour, sugar, butter, honey, oats and 19 more ingredients.Speed ConverterConvert a speed between mph, km/h, knots, feet per second and metres per second. The calculator also shows equivalent values across the supported units.Volume ConverterConvert liquid and cubic volume values across metric, US customary and imperial units. Choose the correct gallon standard and see the result in other units instantly.Weight converterConvert kilograms to pounds, ounces to grams or stone to kilograms. Metric and imperial units with exact definitions and instant results.
Fast, precise unit conversion
Every converter shows the result in all common units at once, with a table of typical values and the formulas underneath. Metric, imperial and US customary units are supported - from inches and pounds to Fahrenheit, square feet, gallons, data sizes and cups or tablespoons in the kitchen.