Conversion Tables

GENERAL CONVERSION FORMULAE 

From

To

Multiply by

inches

millimetres

25.4

millimetres

inches

0.0394

inches

centimetres

2.54

centimetres

inches

0.3937

feet

metres

0.3048

metres

feet

3.281

yards

metres

0.9144

metres

yards

1.094

miles

kilometres

1.609

kilometres

miles

0.6214

sq inches

sq centimetres

6.452

sq centimetres

sq inches

0.155

sq metres

sq feet

10.76

sq feet

sq metres

0.0929

sq yards

sq metres

0.8361

sq metres

sq yards

1.196

sq miles

sq kilometres

2.589

sq kilometres

sq miles

0.3861

acres

hectares

0.4047

hectares

acres

2.471

cu inches

cu centimetres

16.39

cu centimetres

cu inches

0.06102

cu feet

cu metres

0.02832

cu metres

cu feet

35.315

cu yards

cu metres

0.7646

cu metres

cu yards

1.308

cu inches

litres

0.01639

litres

cu inches

61.03

pints

litres

0.5682

litres

pints

1.76

US pints

litres

0.47311

litres

US pints

2.114

US gallon

liters

3.785

gallons

litres

4.546

litres

US gallons

0.2642

litres

gallons

0.22

grains

grams

0.0648

grams

grains

15.43

ounces

grams

28.35

grams

ounces

0.03527

pounds

grams

453.6

grams

pounds

0.002205

pounds

kilograms

0.4536

kilograms

pounds

2.205

tons

kilograms

1016.05

kilograms

tons

0.0009842

 

LINEAR MEASURE

From

To

Multiply by

inches

millimetres

25.4

millimetres

inches

0.0394

inches

centimetres

2.54

centimetres

inches

0.3937

feet

metres

0.3048

metres

feet

3.281

yards

metres

0.9144

metres

yards

1.094

miles

kilometres

1.609

kilometres

miles

0.6214

nautical miles

kilometres

1.852

nautical miles

miles

1.150779

1 centimetre = 10 mm
1 decimetre = 10 cm
 1 metre  =  100 cm
1 kilometre =  1,000 m

 1 foot = 12 inches
1 yard = 3 feet
1 (statute) mile= 1,760 yards
1 int. nautical mile= 1.150779 miles

AREA

From

To

Multiply by

sq inches

sq millimetres

645.16

sq millimetres

sq inches

0.001550

sq inches

sq centimetres

6.452

sq centimetres

sq inches

0.155

sq feet

sq centimetres

 929.03

sq centimetres

sq feet

0.001076

sq metres

sq feet

10.76

sq feet

sq metres

0.0929

sq yards

sq metres

0.8361

sq metres

sq yards

1.196

sq miles

sq kilometres

2.5899

sq miles

hectares

0.25899

hectares

sq miles

3.8612

sq kilometres

sq miles

0.3861

acres

sq metres

4046.86

sq metres

acres

0.000247

acres

hectares

0.4047

hectares

acres

2.471

 

1 square foot  =  144 sq. in.
1 square yard = 9 sq. ft
1 acre =  4,840 sq. yd 
1 square mile
=  640 acres

1 square metre = 10,000 sq. cm
1 are = 119.6 sq. yards
1 are = 100 square metres
1 hectare = 100 ares = 2.471 acres
1 square kilometre = 100 hectares

VOLUME

From

To

Multiply by

cu inches

cu centimetres

16.39

cu centimetres

cu inches

0.06102

cu inches: 

cu decimetres

16.387

cu feet

cu metres

0.02832

cu metres

cu feet

35.315

cu feet

cu inches

1,728

cu feet

cu decimetres

28.316

cu yards

cu metres

0.7646

cu metres

cu yards

1.308

cu inches

litres

0.01639

litres

cu inches

61.03

1 cubic metre = 1,000,000 cu. cm 

CAPACITY 

From

To

Multiply by

fluid ounce

litres

0.0284

fluid ounce

cu inches

1.8047

US fluid ounce

litres

0.0296

US fluid ounce

cu inches

1.878

gills

litres

0.1421

pint

cu inches

34.68

pints

litres

0.568

litres

pints

1.7606

US pints

liters

0.4731

liters

US pints

2.114

US pints

cu inches

28.88

cu inches

US pints

0.0347

quarts

litres

1.136

US quarts

liters

0.9463

gallons

litres

4.546

US gallons

litres

3.785

peck

litres

9.092

bushel

liters

36.4

US barrels

cubic metres

0.159

 

1 US pint = 16 fluid oz 
1 gill = 5 fluid oz
1 pint = 20 fluid oz
1 quart = 2 pints
1 gallon = 4 quarts
1 peck = 2 gallons 
1 bushel = 4 pecks


1 centilitre = 10 ml = 0.018 pint
1 decilitre = 10 cl  = 0.176 pint
1 litre = 1000 ml = 1.76 pints
1 litre = 1 cubic decimetres
1 decalitre = 10 l = 2.20 gallons
1 hectolitre = 100 l = 2.75 bushels
1 kilolitre = 1,000 l = 3.44 quarters

 

MASS and WEIGHT - Commonly used values

From

To

Multiply by

grams

grains

15.43

grains

grams

0.0648

ounces

grams

28.349

grams

ounces

0.03527

pounds

grams

453.59

grams

pounds

0.002205

pounds

kilograms

0.45359

kilograms

pounds