Linear Measure
|
1 millimetre (mm) |
|
|
1 centimetre (cm) |
= 10 mm |
|
1 metre (m) |
= 100 cm |
|
1 kilometre (km) |
= 1 000 m |
|
1 inch |
= 25.4 mm |
|
1 foot = 12 inches |
= 0.3048 m |
|
1 yard = 3 feet |
= 0.9144 m |
|
1 mile = 1760 yards |
= 1.609 km |
Square Measure
|
1 square centimetre (cm2, cm**2) |
|
|
1 square metre (m2, m**2) |
= 10 000 cm2 |
|
1 hectare (ha) |
= 10 000 m2 |
|
1 square kilometre (km2, km**2) |
= 1 000 000 m2 |
|
1 square inch |
= 6.45 cm2 |
|
1 square foot = 144 sq. in. |
= 0.0929 m2 |
|
1 square yard = 9 sq. ft. |
= 0.8361 m2 |
|
1 acre = 4 840 sq. yd. |
= 0.405 ha |
|
1 square mile = 640 acres |
= 2.59 km2 = 259.0 ha |
Volume (Cubic) Measure
|
1 cubic centimetre (cm3, cm**3) |
|
|
1 cubic metre (m3, m**3) |
= 1 000 000 cm3 |
|
1 cubic inch |
= 16.4 cm3 |
|
1 cubic foot = 1 728 cu. in. |
= 0.0283 m3 |
|
1 cubic yard = 27 cu. ft. |
= 0.765 m3 |
Capacity Measure
|
1 litre (l) |
= 1 000 cm3 |
|
1 cubic metre (m3, m**3) |
= 1 000 l |
|
British |
|
|
1 pint = 20 fluid oz. |
= 0.568 l |
|
1 quart = 2 pints |
= 1.136 l |
|
1 gallon = 4 quarts |
= 4.546 l |
|
American (liquid) |
|
|
1 pint = 16 fluid 02. |
= 0.473 l |
|
1 quart = 2 pints |
= 0.946 l |
Weight
|
1 gram (gm) |
|
|
1 kilogram (kg) |
= 1 000 gm |
|
1 metric ton (MT) = tonne |
= 1 000 kg |
|
1 ounce |
= 28.35 gm |
|
1 pound |
= 0.4536 kg |
|
1 ton |
= 0.907 MT |
Temperature
Water boils at 100° Celsius or Centigrade and freezes at 0°C F° Fahrenheit correspond to (F - 32) x 5 ÷ 9° Celsius
Time
|
1 minute (min) |
= 60 seconds (sec) |
|
1 hour (hr) |
= 60 min |
|
1 day (d) |
= 24 hr |
|
1 week (wks) |
= 7 d |
|
1 month (mnth) |
= 30 d |
|
1 year (yr) |
= 12 mnth = 52 wks |
Capacity/Time
1 cubic metre/second (m3/sec)
1 m3/sec = 1 000 l/sec = 60 m3/min = 3 600 m3/hr
1 gal/sec (British) = 60 gal/min = 3 600 gal/hr = 4.546 l/sec
1 gal/sec (American) = 3.785 l/sec
1 ft3/sec = 28.3 l/sec
