Kalkuly
EN
Unit converter
Convert between metric and imperial units of length, weight and temperature instantly. Ideal for recipes, travel, DIY and school work.
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How to use it
Choose the category, enter a value and pick the units. The conversion is instant; use ⇄ to swap the units.
Formula and method
1 in = 2.54 cm · 1 ft = 30.48 cm · 1 mile = 1.609344 km · 1 lb = 0.45359237 kg · 1 oz = 28.35 g · °F = °C × 9/5 + 32 · K = °C + 273.15.
Worked example
A person 5 ft 9 in tall measures (5 × 12 + 9) × 2.54 = 175.3 cm. 150 lb = 150 × 0.4536 = 68 kg.
Frequently asked questions
How many centimetres in an inch?
One inch is exactly 2.54 cm.
How do I convert Celsius to Fahrenheit?
°F = °C × 9/5 + 32. For example, 20 °C = 68 °F.
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