Measurement Conversions

Metric and Imperial Conversions

Here you'll find a list of the most common conversions used internationally.  Many of these unit conversions will not only be helpful for many of your mathematical word problems but also for travel between the US and Canada or especially useful for recipe conversions.

The Metric system is used exclusively in Europe, although in Great Britain, the Imperial system is still permitted by law.  The United States accepts the use of the Metric system but has yet to sanction it as the official measurement system.


The Metric system uses decimal multiples to give familiarity to various units of measure. So, for example there is a relationship between a meter and a kilometer that is based on the power of 10.

So for instance one can symbolically write :

1000 meters = 1 kilometer
1 meter = .001 kilometer

1 inch2.540 centimeters
1 foot30.48 centimeters
1 mile1.609 kilometers
1 centimeter0.3937 inches
1 meter39.37 inches or 100 centimeters
1 kilometer0.6214 miles or 1000 meters
1 square mile640 acres
1 acre43.560 feet squared
1 square meter10.76 feet squared
1 square foot929 centimeters squared
1 US Gallon3.785 litres
1 British Gallon1.201 US gallon
1 US Quart.946 litre
1 Mile per hour1.609 Kilometer per hour
1 Kilometer per hour.62 Miles per hour
Temperature Sea Level
32 Degrees Fahrenheit0 Degrees Celsius (Freezing Point)
212 Degrees Farenheit100 Degrees Celsius (Boiling Point)
1 Pound.453 Kilogram, 16 ounces, 453 grams
1 Ounce28 grams
1 Kilogram2.2 pounds