Convert Metric & Imperial

Select from a range of free metric and imperial conversion tools you can access and use from any smart device.

Convert Weight

Simply select metric and imperial units from the drop-down menus, enter the weight and press calculate for results.

Convert From:
Convert To:
Value To Convert:
Result:

Note: Please enter numeric values only including a decimal point ( . ) if required. Do not use commas ( , ) to separate numbers.

Convert Length

Simply select metric and imperial units from the drop-down menus, enter the length and press calculate for results.

Convert From:
Convert To:
Value To Convert:
Result:

Note: Please enter numeric values only including a decimal point ( . ) if required. Do not use commas ( , ) to separate numbers.

Convert Area

Simply select metric and imperial units from the drop-down menus, enter the area and press calculate for results.

Convert From:
Convert To:
Value To Convert:
Result:

Note: Please enter numeric values only including a decimal point ( . ) if required. Do not use commas ( , ) to separate numbers.

How To Calculate Area

Use the following formula to calculate the area of a rectangle or square.

Length x Width = Area

Example: 8 metres (Length) x 6 metres (Width) = 48 square metres (Area)

Convert Volume

Simply select metric and imperial units from the drop-down menus, enter the volume and press calculate for results.

Convert From:
Convert To:
Value To Convert:
Result:

Note: Please enter numeric values only including a decimal point ( . ) if required. Do not use commas ( , ) to separate numbers.

How To Calculate Volume

Use the following formula to calculate volume and cubic capacity of a box.

Length x Width x Height = Volume

Example: 9 metres (Length) x 6 metres (Width) x 5 metres (Height) = 270 cubic metres (Capacity)

Convert Metric & Imperial

Use the following tables to quickly convert metric and imperial measurements.

Weight Tables

Instantly convert metric and imperial weights using our online weight calculator.

Metric To Imperial Weights

Metric Weights

Imperial Weights

1 mg

0.0154 gr

1 g

1,000 mg

0.0353 oz

1 kg

1,000 g

2.2046 lb

1 t

1,000 kg

0.9842 lt

Imperial To Metric Weights

Imperial Weights

Metric Weights

1 oz

437.5 gr

28.35 g

1 lb

16 oz

0.4536 kg

1 st

14 lb

6.3503 kg

1 cwt

112 lb

50.802 kg

1 sh t

17.857 cwt

0.9072 t

1 lt

20 cwt

1.016 t

Weight Key
  • mg – milligram
  • g – gram
  • kg – kilogram
  • t – tonne
  • gr – grain
  • oz – ounce
  • lb – pounds
  • st – stone
  • cwt – hundredweight
  • sh t – short ton
  • lt – long ton

Length Tables

Instantly convert metric and imperial lengths using our online length calculator.

Metric To Imperial Lengths

Metric Lengths

Imperial Lengths

1 mm

0.03937 in

1 cm

10 mm

0.3937 in

1 m

100 cm

1.0936 yd

1 km

1,000 m

0.6214 mi

Imperial To Metric Lengths

Imperial Lengths

Metric Lengths

1 in

2.54 cm

1 ft

12 in

0.3048 m

1 yd

3 ft

0.9144 m

1 mi

1760 yd

1.6093 km

1 nm

2025.4 yd

1.853 km

Length Key
  • mm – millimetre
  • cm – centimetre
  • m – metre
  • km – kilometre
  • in – inch
  • ft – foot
  • yd – yard
  • mi – mile
  • nm – international nautical mile

Area Tables

Instantly convert metric and imperial area using our online area calculator.

Metric To Imperial Area

Metric Area

Imperial Area

1 cm²

100 mm²

0.1550 in²

1 m²

10,000 cm²

1.1960 yd²

1 ha

10,000 m²

2.4711 ac

1 km²

100 ha

0.3861 mi²

Imperial To Metric Area

Imperial Area

Metric Area

1 in²

6.4516 cm²

1 ft²

144 in²

0.0929 m²

1 yd²

9 ft²

0.8361 m²

1 ac

4840 yd²

4046.9 m²

1 mi²

640 ac

2.59 km²

Area Key
  • mm² – square millimetre
  • cm² – square centimetre
  • m² – square metre
  • ha – hectare
  • km² – square kilometre
  • in² – square inch
  • ft² – square feet
  • yd² – square yard
  • ac – acres
  • mi² – square mile

Volume Tables

Instantly convert metric and imperial volume using our online volume calculator.

Metric To Imperial Volume

Metric Volume

Imperial Volume

1 cm³

0.0610 in³

1 dm³

1,000 cm³

0.0353 ft³

1 m³

1,000 dm³

1.3080 yd³

1 l

1 dm³

1.7598 pt

1 hl

100 l

21.997 gal

Imperial To Metric Volume

Imperial Volume

Metric Volume

1 in³

16.387 cm³

1 ft³

1,728 in³

0.0283 m³

1 fl oz

28.413 ml

1 pt

20 fl oz

0.5683 l

1 gal

8 pt

4.5461 l

USA To Metric Volume

USA Volume

Metric Volume

1 fl oz

29.574 ml

1 pt

0.4732 l

1 gal

3.7854 l

Volume Key
  • cm³ – cubic centimetre
  • dm³ – cubic decimetre
  • m³ – cubic metres
  • ml – millilitre
  • l – litre
  • hl – hectolitre
  • in³ – cubic inches
  • ft³ – cubic feet
  • yd³ – cubic yards
  • fl oz – fluid ounce
  • pt – pint
  • gal – gallon

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