### Imperial to Metric

Inches to Millimetres | multiply by 25.4 |

Inches to Centimetres | multiply by 2.54 |

Feet to Centimetres | multiply by 30.48 |

Feet to Metres | multiply by 0.3048 |

Yards to Metres | multiply by 0.9144 |

Miles to Metres | multiply by 1,609.3 |

Miles to Kilometres | multiply by 1.609 |

Nautical Miles to Metres | multiply by 1,853.27 |

Sq. Inches to Sq. Millimetres | multiply by 645.160 |

Sq. Inches to Sq. Centimetres | multiply by 6.452 |

Sq. Feet to Sq. Metres | multiply by 0.0929 |

Sq. Yards to Sq. Metres | multiply by 0.835 |

Sq. Miles to Sq. Kilometres | multiply by 2.590 |

Acres to Sq. Kilometres | multiply by 0.004047 |

Acres to Hectares | multiply by 0.4047 |

Cubic Inches to Cubic Centimetres | multiply by 16.36 |

Cubic Feet to Cubic Metres | multiply by 0.03 |

Cubic Yards to Cubic Metres | multiply by 0.76 |

Cubic Inches to Litres | multiply by 0.01639 |

Grains to Grammes | multiply by 0.648 |

Ounces to Grammes | multiply by 28.35 |

Pounds to Grammes | multiply by 453.6 |

Pounds to Kilogrammes | multiply by 0.4536 |

Cwt to Kilogrammes | multiply by 1,016 |

Tons to Kilogrammes | multiply by 1.016 |

Tons to Tonnes | multiply by 1.016 |

Pints to Litres | multiply by 0.5682 |

Imperial Gallons to Litres | multiply by 4.546 |

Fahrenheit to Centigrade | minus 32 degrees multiply by 0.5555 |

### Metric to Imperial

Millimetres to Inches | multiply by 0.03937 |

Centimetres to Inches | multiply by 0.3937 |

Centimetres to Feet | multiply by 0.0328 |

Metres to Feet | multiply by 3.281 |

Metres to Yards | multiply by 1.094 |

Metres to Miles | multiply by 0.000621 |

Kilometres to Miles | multiply by 0.6214 |

Metres to Nautical Miles | multiply by 0.000539 |

Sq. Millimetres to Sq. Inches | multiply by 0.001550 |

Sq. Centimetres to Sq. Inches | multiply by 0.155 |

Sq. Metres to Sq. Feet | multiply by 10.764 |

Sq. Metres to Sq. Yards | multiply by 1.196 |

Sq. Kilometres to Sq. Miles | multiply by 0.3861 |

Sq. Kilometres to Acres | multiply by 247.1 |

Hectares to Acres | multiply by 2.471 |

Cubic Centimetres to Cubic Inches | multiply by 0.061 |

Cubic Metres to Cubic Feet | multiply by 35.3 |

Cubic Metres to Cubic Yards | multiply by 1.316 |

Litres to Cubic Inches | multiply by 61.03 |

Grammes to Grains | multiply by 15.43 |

Grammes to Ounces | multiply by 0.03527 |

Grammes to Pounds | multiply by 0.002205 |

Kilogrammes to Pounds | multiply by 2.205 |

Kilogrammes to Cwt | multiply by 0.01968 |

Kilogrammes to Tons | multiply by 0.0009842 |

Tonnes to Tons | multiply by 0.9842 |

Litres to Pints | multiply by 1.76 |

Litres to Imperial Gallons | multiply by 0.22 |

Centigrade to Fahrenheit | multiply by 1.8 add 32 degrees |