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Metric Chart (Metric Table)

The following tables show some of the more common measures, and the conversion between larger and smaller units. The left hand tables show the units for the metric system while the right hand tables show for the Imperial and USA measurement systems. For measures where the Imperial units are different from the USA units (e.g. for gallons) this is noted.

Metric length

     

Imperial/USA Length

   

10 millimeters

=

1 centimeter

 

12 inches

=

1 foot

10 centimeters

=

1 decimeter

 

3 feet

=

1 yard

10 decimeters

=

1 meter

 

22 yards

=

1 chain

10 meters

=

1 decameter

 

10 chains

=

1 furlong

10 decameters

=

1 hectometer

 

8 furlongs

=

1 mile (5280 feet)

10 hectometers

=

1 kilometer (1000 meters)

       

 

Metric area

     

Imperial/USA area

   

100 square mm

=

1 square centimeter

 

144 square inches

=

1 square foot

10000 square cm

=

1 square meter

 

9 square feet

=

1 square yard

100 square m

=

1 are

 

4840 square yards

=

1 acre

100 ares

=

1 hectare

 

640 acres

=

1 square mile

100 hectares

=

1 square kilometer

       
 

=

1000000 square meters

       

The Imperial and USA systems have the same definition of the pound and the same definition of the ounce. However, the Imperial system uses the "stone", which is not used in the USA system. In the Imperial systems a "hundredweight" is not a hundred pounds but is equal to 8 stones, giving a weight of 112 pounds (8 * 14 pounds). Likewise, the Imperial "ton" is defined as 20 "hundredweight", given a weight of 2240 pounds (20 * 112 pounds). Therefore, when speaking of a hundredweight or a ton, one needs to know whether it is the Imperial version of these measures or the USA version.

Metric mass

     

Imperial/USA weight

   

1000 grams

=

1 kilogram

 

16 ounces

=

1 pound

1000 kilograms

=

1 ton

 

14 pounds

=

1 stone (UK)

       

8 stones (UK)

=

1 hundredweight (UK)

         

=

112 pounds (UK)

       

100 pounds

=

1 hundredweight (USA)

       

20 hundredweight (UK)

=

1 ton (UK)

         

=

2240 pounds

       

20 hundredweight (USA)

=

1 ton (USA)

         

=

2000 pounds

The Imperial and USA systems use similar terms for liquid capacity, but the relationships of the units are not the same. The Imperial system has 5 fluid ounces to a gill, while the USA system has 4 fluid ounces to a gill. This means that the gill and all multiples of it (e.g. cup, pint, quart, gallon) are all larger in the Imperial system than in the USA system.

The Imperial fluid ounce (equal to 28.413 062 5 milliliters) is slightly smaller than the USA fluid ounce (equal to 29.573 529 562 5 milliliters).

Within the UK, the Imperial "tablespoon" is officially defined as 5/8 of a fluid ounce and a teaspoon is 1/24 of a gill. However, in other Imperial countries the tablespoon is often defined as half an ounce and the teaspoon as one third of a tablespoon. For ease of use, we've used these simpler definitions in the following table. For our metric calculators, the official UK definitions are used. In general, there are multiple interpretations of the exact value of teaspoon, tablespoon and cup (see Cooking Converter for further discussion of this point).

Metric capacity

     

Imperial liquid capacity

   

10 mililiters

=

1 centilitre

 

2 teaspoons

=

1 dessertspoon

10 centiliters

=

1 decilitre

 

3 teaspoons

=

1 tablespoon

10 deciliters

=

1 litre

 

2 tablespoons

=

1 fluid ounce

1000 liters

=

1 cubic meter

 

5 fluid ounces

=

1gill

       

2 gills

=

1 cup

       

2 cups

=

1 pint

         

=

20 fluid ounces

       

2 pints

=

1 quart

       

4 quarts

=

1 gallon

       

USA liquid capacity

   
       

3 teaspoons

=

1 tablespoon

       

2 tablespoons

=

1 fluid ounce

       

4 fluid ounces

=

1 gill

       

2 gills

=

1 cup

       

2 cups

=

1 pint

           

16 fluid ounces

       

2 pints

=

1 quart

       

4 quarts

=

1 gallon

Metric Conversion

We provide a metric system converter and conversion table for all common conversions at Quick Metric Converter. Related topics are provided at Metric System Conversion.

 
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