APPENDIX

CONVERSION FACTORS

 

LENGTH: WEIGHT:
1 inch = 2.54 centimetres
1 foot = 30.48 centimetres
1 yard = 91.44 centimetres
1 mile =1.61 kilometres
1nauticalmile(U.K.)=1853.18metres
1 nautical mile (International) = 1852 metres
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 maund (Madras) = 11.20 kilograms
AREA:  1 candy = 223.94 kilograms
1 square foot = 0.093 square metre
1 squire yard = 0.836 square metre
1 acre = 0.405 hectare
1 ounce = 28.35 grams
1 pound = 453.59 grams
  1 hundredweight = 50.80 kilograms
VOLUME:  1 ton = 1016.05 kilograms
1 cubic foot = 0.023 cubic metre  
   
CAPACITY:  
1 gallon (Imperial) = 4.55 litres
1 seer (80 tolas) = 0.937 litre
1 Madras measure = 1.77 litres
 TEMPERATURE:


T Fahrenheit = 9/5 (T Centigrade) + 32

METRIC WEIGHTS AND MEASURES

LENGTH: VOLUME:
10 millimetres = 1 centimetre
100 centimetres = 1 metre
1000 metres = 1 kilometre
1,000,000 cubic centimetres - 1 cubic metre
1852metres=1nauticalmile(International) CAPACITY:

AREA:
1000 millilitres = 1 litre
1000 litres = 1 kilolitre
100squaremillimetres=1squarecentimetre
10,000 square centimetres = 1 square metreor centiare
100 square metres = 1 are
 WEIGHT:
100 ares = 1 hectare
100 hectares or 1,000,000 square metres = 1 square kilometre
1000 milligrams = 1 gram
1000 grams = 1 kilogram
100 kilograms = 1 quintal
1000 kilograms l= 1 tonne
 200 milligrams = 1 carat

ABBREVIATIONS FOR METRIC UNITS

(1) Decimal Multiples and Sub-multiples:

 

(4) Volume:

Prefix

Value in terms of Unit

Abbreviation

  Denomination Value Abbreviation

kilo

1000

k

 

cubic centimetre

cm3

cm3

centi

0.01 (10-2)

c

 

cubic millimetre

mm3

mm3

milli

0.001 (10-3)

m

 

(5) Length:

micro

0.000001 (10-6)

u

 

kilometre

1000 m

km

(2) Weight:

 

metre

1 m

m

Denomination Value Abbreviation  

centimetre

1 cm

cm

tonne

1000 kg

t

 

millimetre

1 mm

mm

quintal

100 kg

q

 

micron

1/1000 mm or 10-2mm

um

kilogram

1 kg

kg

 

(6) Area:

gram

1  g

g

 

square kilometres

1,000,000m2

km2

milligram

1 mg

mg

 

square metre

1 m2

m2

carat

200 mg

c

 

square centimetre

1 cm2

cm2

(3) Capacity:

 

square millimetre

1 mm2

mm2

kilolitre

1000 l

kl

 

(7) Land Measure:

litre

1      l

l

 

are

100 m2

a

millilitre

1 ml

ml

 

hectare

100a

ha

 

centiare

m2

ca

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