About Unit Equals

One page for every number you search: kilograms and pounds, centimeters and inches, Fahrenheit and Celsius, answered exactly and drawn on a scale.

Where the numbers come from

Every answer on the site comes from a single file of formulas. The pound (0.45359237 kg) and the inch (2.54 cm) are exact by international definition, and Fahrenheit and Celsius are related by °C = (°F − 32) × 5/9. Automated tests check known values and that every conversion and its reverse return the number you started with.

Answers are shown two ways: the exact figure (or six decimal places when it never ends) and a rounded figure for everyday use.

Who runs it

Unit Equals is a small independent site, paid for by advertising. It has no accounts and stores nothing you type. Write to appvior2@gmail.com.