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UK Calculators

Unit Conversion Calculator

Convert length, mass, volume and temperature using metric and UK imperial units.

Last reviewed

Unit Conversion Calculator

Converted value

0.001

Output unitkilometres
Input1 metres

Reading the result

Select a measurement group, then the input and output units. Imperial gallons and pints are UK measures, not US liquid measures.

How it works

Length, mass and volume are converted through a common base unit. Temperature uses an offset and scale, so it cannot be converted by a simple ratio alone.

Worked examples

Miles to kilometres

Convert 1 international mile.

  1. Multiply miles by the exact kilometre conversion.

1.609344 kilometres

Assumptions

The result depends on the following. If any of them do not match your situation, treat the figure as indicative only.

  • Uses international feet and miles, avoirdupois mass and UK imperial liquid volume.

What this calculator does not do

  • Display precision is limited to eight decimal places. Values below absolute zero and negative physical measurements are rejected.

Methodology

Exact unit factors are applied before rounding. Celsius, Fahrenheit and Kelvin conversions include their zero-point offsets.

Frequently asked questions

Are these US gallons?

No. The volume units labelled imperial gallons and imperial pints are UK measures.

Can I convert stone to kilograms?

Yes. Choose mass, then stone and kilograms. One stone equals fourteen pounds.

Please note: Results are estimates for general information only and are not financial, tax or legal advice. Figures depend on the assumptions listed on each page and on your personal circumstances.

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