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APPENDIX
CONVERSION FACTORS
LENGTH       1 inch = 2.54 centimetres       1 foot = 30.48 centimetres       1 yard = 91.44 centimetres       1 mile = 1.61 kilometres       1 nautical mile (U.K.) = 1853.18 metres       1 nautical mile (international) = 1,852 metres
AREA       1 square foot = 0.093 square metre       1 square yard = 0.836 square metre       1 acre = 0.405 hectare
VOLUME       1 cubic foot = 0.023 cubic metre
CAPACITY       1 gallon (Imperial) = 4.555 litres       1 seer (80 tolas) = 0.937 litre
WEIGHT       1 tola = 11.66 grams       1 chhatak = 58.32 grams       1 seer = 933.10 grams       1 maund = 37.32 kilograms       1 palam -= 34.99 grams       1 seer (24 tolas) = 279.93 grams       1 viss = 1.40 kilograms       1 candy = 223.94 kilograms       1 ounce = 28.35 grams       1 pound = 453.59 grams       1 hundred weight = 50.80 kilograms       1 ton = 1016.05 kilograms
TEMPARATURE       To Fahrenheit = 9/5 (To centigrade)+32
METRIC WEIGHTS AND MEASURES
LENGTH       10 millimetres = 1 centimetre       100 centimetres = 1 metre       1000 metres = 1 kilometre       1852 metres = 1 nautical mile (International)
AREA       100 square millimetres = 1 square centimetre       10,000 square centimetres = 1 square metre or centiare       100 square metres = 1 are       100 ares = 1 hectare       100 hectares or 1,000,000 square metres = 1 square kilometre
VOLUME        1,000,000 cubic centimetres = 1 cubic metre
CAPACITY        1000 millilitres = 1 litre        1000 litres = 1 kilolitre
WEIGHTS        1000 milligrams = 1 gram        1000 grams = 1 kilogram        100 kilogram = 1 quintal        1000 kilograms = 1 tonne        200 milligrams = 1 carat
ABBREVIATIONS FOR METRIC UNITS
(1) DECIMAL MULTIPLES AND SUB-MULTIPLES
Prefix Value in terms of Unit Abbreviation Kilo                       1000 k Centi                      1.01 (10-2) c Milli                        0.001 (10-3) m Micro                    0.000001(10-6) u
(2) WEIGHTS
Denomination Value Abbreviation Tonne                      1000 kg t Quintal                     100 kg q Kilogram                  1 kg kg Gram                      1 gm g Milligram                 1 mg mg Carat                      200 mg c
(3) CAPACITY
Denomination Value Abbreviation kilolitre                     1000 l kl litre                          1 l l millilitre                     1 ml ml
(4) VOLUME
Denomination Value Abbreviation cubic centimetre        cm3 cm3 cubic millimetre       mm3 mm3
(5) LENGTH
Denomination Value Abbreviation kilometre                    1000m km metre                        1 m m centimetre                 1 cm cm millimetre                  1 mm mm micron                      1/1000mm or 10. 2mm um
(6) AREA
Denomination Value Abbreviation square kilometres        1,000,000m2 km2 square metre               1 m2 m2 square centimetre        1 cm2 cm2 square millimetre      mm2 mm2
(7) LAND MEASURE
Denomination Value Abbreviation are                      100 m2 a hectare                     100 a ha centiare                    m2 ca