Conversion tables

Three complete tables for the conversions that shoppers and travellers need most, each calculated from the exact definition of the unit.

In this section

What you will find

  • Length: inches and centimetres, body height in feet and inches, miles and kilometres.
  • Weight: kilograms, pounds, stones and ounces.
  • Temperature: Celsius and Fahrenheit for weather, body temperature and ovens.

Each page shows the formula, a worked example and the usual mistakes, so you can convert a value that is not in a table.

Exact and rounded values

The inch and the pound are defined through the metre and the kilogram, so their factors are exact. Table values are rounded to the decimals shown. For anything where small differences matter, calculate from the exact factor on the page.