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APPENDICES
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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) = 1852 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:
I gallon (Imperial) - 4.55 litres
1 seer (80 tolas) = 0.937 litre
1 Madras measure = 1.77 litres
WEIGHT:
1 tola = 11.66 grams
I 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 maund (Madras) = 11.20 kilograms
1 candy = 223.94 kilograms
1 ounce = 28.35 grams
1 pound = 453.59 grams
1 hundredweight = 50.80 kilograms
1 ton = 1016.05 kilograms
TEMPERATURE:
T° Fahrenheit = 9/5 (T° centigrade) + 32
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:
l000 millilitres = 1 litre 1000 litres = 1 kilolitre
WEIGHTS:
1000 milligrams = 1 gram
1000 grams = 1 kilogram
100 kilograms = 1 quintal
1000 kilograms = 1 tonne
200 milligrams = 1 carat
ABBREVIATIONS FOR METRIC UNITS
(1) DECIMAL MULTIPLES AND SUBMULTIPLES:
Prefix |
Value in terms of Unit |
Abbreviation | |
kilo |
1000 |
k | |
centi |
0.01 (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 |
1kg |
kg | |
gram |
l g |
g | |
milligram |
1 mg |
mg | |
carat |
200 mg |
c |
|
(3) CAPACITY: | |
kilolitre |
1000 1 |
kl | |
litre |
1 1 |
l | |
millilitre |
1 ml |
ml |
|
(4) VOLUME: | |
cubic centimetre |
cm3 |
cm3 | |
cubic millimetre |
mm3 |
mm3 |
|
(5) LENGTH: | |
kilometre |
1000 m |
km | |
metre |
1 m |
m | |
centimetre |
1 cm |
cm | |
millimetre |
1 mm |
mm | |
micron |
1/1000 mm or |
um | |
-- |
10-2 mm |
-- |
|
(6) AREA: |
square kilometres |
1,000,000 m3 |
km3 |
square metre |
1 m2 |
m2 |
square centimetre |
1 cm2 |
cm2 |
square millimetre |
1 mm2 |
mm2 |
|
(7) LAND MEASURE: |
are |
100 m2 |
a |
hectare |
100 a |
ha |
centiare |
m2 |
ca |
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