Conversions calculators
Metric, imperial, and whatever a “cup” is supposed to be.
Length, weight, temperature, volume, area, speed and data, plus heights, shoe sizes and cooking.
Units
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Length Converter
Convert between metres, feet, inches, miles and more. -
Weight Converter
Convert between kilograms, pounds, ounces, stone and more. -
Temperature Converter
Convert Celsius, Fahrenheit and Kelvin. -
Volume Converter
Convert litres, gallons, cups, fluid ounces and more. -
Area Converter: Square Feet, m², Acres
Convert between square feet, square metres, acres, hectares and more. -
Speed Converter
Convert km/h, mph, metres per second, knots and feet per second. -
Data Size Converter: MB, GB, TB
Convert between bytes, KB, MB, GB and TB, in decimal and binary units. -
Energy Converter: kWh, kcal, BTU, Joules
Convert energy between kWh, joules, calories, kilocalories, BTU and therms. -
Angle Converter: Degrees and Radians
Convert angles between degrees, radians, gradians, turns, arcminutes and arcseconds. -
Pressure Converter: psi, bar, kPa
Convert pressure between psi, bar, kPa, atmospheres, mmHg and more. -
Fuel Economy Converter (MPG to L/100 km)
Convert mpg to L/100 km, km per litre and UK mpg, and back. -
Feels Like Temperature Calculator
How cold or hot it really feels, from the temperature, the wind and the humidity. e.g. Feels like = 37 °C
Heights, sizes and cooking
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Height Converter: Feet and Inches to cm
Convert height between feet and inches and centimetres, both ways. e.g. Height = 172.7 cm -
Inch Fraction Calculator
Decimal inches to fractions like 5/16, and adding feet-and-inch measurements. e.g. As a fraction = 5/16″ -
Shoe Size Converter: US, UK, EU
Convert shoe sizes between US men’s and women’s, UK, European and cm. e.g. Your size = EU 43 -
Clothing Size Converter: US, UK, EU
Convert women’s dress and men’s suit sizes between US, UK, EU, France and Italy. -
Ring Size Converter
Convert ring sizes between US, European and inside diameter or circumference. e.g. US and Canada = 7 -
Paper Size Converter: A4, Letter and More
The exact size of A4, Letter and other paper sizes in mm, cm and inches, and in pixels. e.g. In millimetres = 210 × 297 mm -
Tire Size Calculator
What a tyre size like 225/45R17 means, and how a new size changes your speedometer. e.g. Diameter difference = 0.38% -
Cooking Measurement Converter
Cups to grams (and back) for common baking ingredients. -
Oven Temperature Converter: °C, °F, Gas Mark
Convert oven temperatures between Celsius, Fahrenheit, fan ovens and gas marks. e.g. In °F = 356 °F -
Bra Size Calculator
Your bra size from two measurements, in UK, US, EU and French sizes. e.g. EU size = 75C
