Conversion factors
To convert A to D multiply by B
To convert D to A multiply by C
Volume
|
A
|
B
|
C
|
D
|
|
|
ml (millilitre)
|
0.035195
|
28.413
|
fluid ounce (fl oz)
|
|
litre (l)
|
1.7598
|
0.5683
|
pint (pt)
|
|
litre (l)
|
0.26417
|
3.785
|
US gallon
|
|
litre (l)
|
0.21997
|
4.5461
|
UK gallon (gal)
|
|
cm3
|
0.061024
|
16.387
|
in3
|
|
m3
|
6.2898
|
0.15898
|
US barrel (petroleum)
|
|
m3
|
35.315
|
0.028317
|
ft3
|
|
m3
|
1.3079
|
0.76456
|
yd3
|
|
|
UK gallon = 8 pints
|
US gallon = 231 in3
|
|
|
|
1 pint = 20 fl oz
|
1 litre = 1dm3
|
|
|
Length
|
A
|
B
|
C
|
D
|
|
| micrometre (mm)
|
0.03937
|
25.4
|
milli inch (mil) (thou)
|
| millimetre (mm)
|
39.370
|
0.0254
|
milli inch (mil (thou)
|
| millimetre (mm)
|
0.03937
|
25.4
|
inch (in)
|
| centimetre (cm)
|
0.3937
|
2.54
|
inch (in)
|
| metre (m)
|
39.37
|
0.0254
|
inch (in)
|
| metre (m)
|
3.181
|
0.305
|
foot (ft)
|
| metre (m)
|
1.0936
|
0.914
|
yard (yd)
|
| kilometre (km)
|
0.6214
|
1.609
|
mile (mile)
|
|
Mass
|
A
|
B
|
C
|
D
|
|
| gram (g)
|
0.035274
|
28.3495
|
ounce (oz)
|
| kilogram (kg)
|
2.20462
|
0.45359
|
pound (lb)
|
| tonne (t)
|
2240.62
|
-
|
pound (lb)
|
| tonne (t)
|
1.1023
|
0.90719
|
US ton
|
| tonne (t)
|
0.98421
|
1.0161
|
ton (ton)
|
|
|
tonne (t) = 1000 k
|
|
ton (ton) = 2240 lb
|
|
US ton = 2000 lb
|
Area
|
A
|
B
|
C
|
D
|
|
| cm2
|
0.155
|
6.4516
|
in2
|
| m2
|
10.764
|
0.0929
|
ft2
|
| m2
|
1.1959
|
0.83613
|
yd2
|
| hectare (ha)
|
2.4711
|
0.40469
|
acre
|
| km2
|
0.3861
|
2.5899
|
mile2
|
|
|
hectare = 10000m2
|
|
acre = 4840 yd2
|
Density
|
A
|
B
|
C
|
D
|
|
| g/ml
|
0.09978
|
10.022
|
lb/gal
|
| g/ml
|
0.01602
|
62.428
|
lb/ft3
|
| kg/m3
|
0.06243
|
16.019
|
lb/ft3
|
|
|
kg/m3 = g/l
|
Viscosity (dynamic)
|
A
|
B
|
C
|
D
|
|
| Pascal second (Pa s)
|
1000
|
0.001
|
centipoise (cP)
|
| Pa s
|
10
|
0.1
|
poise (P)
|
|
|
centipoise = milli Pascal second (mPa s)
|
Viscosity (kinematic)
|
A
|
B
|
C
|
D
|
|
| m2/s
|
106
|
10-6
|
centistokes (cSt)
|
| m2/s
|
10.764
|
0.0929
|
ft2/s
|
|
Pressure
|
A
|
B
|
C
|
D
|
|
| 1 bar (bar)
|
14.504
|
0.06895
|
lbf/in2 (psi)
|
| 1 millibar (mbar)
|
0.014504
|
68.9476
|
lbf/in2
|
| standard atmosphere (atm)
|
14.696
|
0.06805
|
lbf/in2
|
| technical atmosphere (at)
|
14.223
|
0.07031
|
lbf/in2
|
| 1 mm Hg
|
0.019337
|
51.715
|
lbf/in2
|
|
|
1 bar = 105 pascal
|
1 millibar - 100 Pa
|
|
1 technical atmosphere = 1kgf/cm2
|
1 mm Hg = 1 torr = 133.322 Pa
|
Concentration
|
A
|
B
|
C
|
D
|
|
| g/l
|
0.1604
|
6.236
|
oz/gal
|
| g/cm3
|
10.022
|
0.09977
|
lb/gal
|
|
| g/cm3 = kg/l
|
Note: Conversion factors have been rounded off.
|
SI Prefixes
|
Name
|
Symbol
|
Factor
|
Multiply by
|
|
| exa
|
E
|
1018
|
1000000000000000000
|
| peta
|
P
|
1015
|
1000000000000000
|
| tera
|
T
|
1012
|
1000000000000
|
| giga
|
G
|
109
|
1000000000
|
| mega
|
M
|
106
|
1000000
|
| kilo
|
k
|
103
|
1000
|
| hecto
|
h
|
102
|
100
|
| deca
|
da
|
101
|
10
|
| deci
|
d
|
10-1
|
0.1
|
| centi
|
c
|
10-2
|
0.01
|
| milli
|
m
|
10-3
|
0.001
|
| micro
|
m
|
10-6
|
0.000001
|
| nano
|
n
|
10-9
|
0.000000001
|
| pico
|
p
|
10-12
|
0.000000000001
|
| femto
|
f
|
10-15
|
0.000000000000001
|
| atto
|
a
|
10-18
|
0.000000000000000001
|
|
| Example: pico (p) = 10-12. Thus, picogram = pg = 10-12g or one million millionth of a gram.
|
