|
Units
of length |
|
|
1millimetre
|
=
0.03937 inch
|
|
10
mm
|
=
1 centimetre
|
=
0.3937 inch
|
|
10
cm
|
=1
decimetre
|
=3.937inches
|
|
10
dm |
=
1 metre
|
=39.37inches
|
|
10
m |
= 1
decametre
|
=10.94 yards
|
|
10
dam |
= 1
hectometre
|
=
109.4 yards
|
|
10
hm |
=1 kilometre
|
=
0.6214mile
|
|
|
|
Units of capacity |
|
|
1
millitre
|
=
0.00176 pint
|
|
10 ml
|
= 1
centilitre
|
=
0.0176 pint
|
|
10 cl
|
= 1
decilitre
|
=
0.176 pint
|
|
1 dl
|
= 1
litre
|
= 1.76
pints = 0.22 uk gallon
|
|
10 l |
= 1
decalitre
|
= 2.20
gallons
|
|
10 dal |
= 1
hectolitre
|
= 22.0
gallons
|
|
10 hl |
= 1
kilolitre
|
=
220.0 gallons
|
|
|
|
Square measure |
| |
1
square
millimetre |
=
0.00155 square inch |
|
100
mm2 |
= 1
square centimetre |
=
0.1550 square inch |
|
100
cm2 |
= 1
square metre= 1
square metre |
=
1.196 square yards |
|
100
m2 |
= 1
are |
=
119.6 square yards |
|
100
ares |
=
1 hectare |
=
2.471 acres |
|
100
ha |
= 1
square kilometre |
=
247.1 acres
|
|
|
Circular measura |
|
1
micrordian
|
=
0.206 seconds
|
|
|
1000
µ rad
|
= 1
milli-
|
|
|
|
radian
|
=
3.437 minutes
|
|
1000
mrad
|
= 1
radian
|
=
57.296
|
|
|
degrees |
=
180 / π
degrees
|
|
|
|
Square measura |
|
|
1
Square inch |
=
645.16 mm2 |
|
144
Square inches |
= 1
Square foot |
=
0.0929 m2 |
|
9
Square feet |
= 1
Square yard |
=
0.8361m2 |
|
4840
Square yards |
= 1
acre |
=
4047 m2 |
|
640
acres |
= 1
Square mile |
=
259 ha |
|
|
|
Cubic
measure |
|
|
1
cubic inch
|
=
16.39 cm3
|
|
1728
cubic inches
|
= 1
cubic foot
|
=
0.02832 m3
|
|
|
|
=
28.32 dm3
|
|
27
cubic feet
|
= 1
cubic yard
|
=
0.7646 m3
|
|
|
|
=
764.6 dm3 |
|
|
|
Circular measure |
|
|
1
second
|
=
4.860 µrad |
|
60
seconds |
= 1
minute |
=
0.2909 µrad |
|
60
minutes |
= 1
degree |
=
17.45 µrad |
|
|
|
/180 π= |
|
45
degree |
=1oxtant |
=
π / 4
rad |
|
60
degree |
= 1
sextant |
=
π / 3
rad |
|
90
degree |
= 1
quadrant or |
|
|
|
1
right angle |
=
π / 2
rad |
|
360
degree |
= 1
circle or |
|
|
|
1
circumference |
= 2
π
rad |
|
1
grade or |
=
1/100th of
a |
|
|
gon |
right angle |
=
π/200
rad |
|
|
|
Units of weight
|
|
|
1
grain |
=
64.8 mg |
|
|
1
dram |
=
1.772 g |
|
16
drams |
=1 ounce
|
=28.35 g |
|
16
ounces
|
=1 pound
|
=0.4536 kg |
|
14
pounds |
=1
stone |
=
6.350 kg |
|
2
stones |
=1
quarter |
=
12.70 kg |
|
4
quarters |
=1
(long) |
|
|
|
hundredweight |
=
50.80 kg |
|
20
hundredweight |
=1
(long) ton |
=
1.016 tonnes |
|
100
pounds |
=1
(short) |
|
|
|
hundredweight |
=
45.36 kg |
|
2000
pounds |
= 1
(short) ton |
=
0.9072 |
|
|
|
tonnes
|
|
|
|
|
