Agriculture Reference
In-Depth Information
Table 7.15
Units of measurement
Unit
Definition
Value in metric unit
Length measures
metre (m)
Basic unit
1 m
centimetre (cm)
100 cm
=
1 m
0.01 m
millimetre (mm)
1,000 mm
=
1 m
0.001 m
kilometre (km)
1,000 m
=
1 km
1,000 m
mile
1,760 yd
=
1 mile
1.609 km
nautical mile
6076.12 ft
=
1 nautical mile
1.852 km
league
3 naut. miles
=
1 league
5.556 km
yard (yd)
3 ft
=
1 yd
0.9144 m
foot (ft)
Basic unit
0.3048 m
inch (in.)
12 in.
=
1 ft
2.54 cm
rod
5.5 yd
=
1 rod
5.0292 m
chain
4 rod
=
1 chain
20.1168 m
furlong (fur.)
10 chain
=
1 fur.
=
220 yd
201.168 m
fathom (fath.)
2 yd
=
1 fath.
1.8288 m
cable
120 fath.
=
1 cable
219.456 m
Area measures
square metre (m
2
)
1 m
2
Basic unit
square cm (cm
2
)
1 cm
2
Basic unit
100m
2
100m
2
are
=
1 are
10,000 m
2
hectare (ha)
100 are
=
1 ha
square kilometre (km
2
)
Basic unit
100 ha
square inch (in.
2
)
6.4516 cm
2
Basic unit
square foot (ft
2
)
0.0929 m
2
Basic unit
square yard (yd
2
)
0.8361 m
2
Basic unit
40 rod
2
=
1 rood
=
1,210 yd
2
1,011.7137 m
2
rood
4 rood
=
1 acre
=
4,840 yd
2
acre
0.4047 ha
2.59 km
2
square mile
640 acre
=
1 sq mile
Volume (cubic) measures
cubic metre (m
3
)
1 m
3
Basic unit
=
litre (l)
1,000 cc
1l
1l
millilitre (ml)
1 cubic centimetre
=
1ml
1ml
cubic foot (cft)
Basic unit
28.3168 l
gallon (gall.)
0.16 cft
=
1 gall.
4.546 l
US gallon (US gall.)
3.785 l
=
1 US gall.
3.785 l
bushel
8 gall.
=
1 bushel
36.368 l
fluid ounce (fl. oz.)
28.4 cc
=
1 fl. oz.
28.4 ml
teaspoonful
8 teaspoonful
=
1 fl. oz.
3.55 ml
fluid dram
8 fl. dram
=
1 fl. oz
3.55 ml
pint
2 pint
=
1 quart
0.5682 l
quart
4 quart
=
1 gall.
1.1365 l
peck
1 peck
=
2 gall.
9.092 l
bottle
6 bottle
=
1 gall.
758 ml
peg
16 peg
=
1 bottle
47.375 ml
Measures of weight or mass
kilogram (kg)
Basic measure
1 kg
gram (g)
1,000 g
=
1kg
1g
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