Prefix
Power
Abbreviation
Exa
1018
E
x 1 000 000 000 000 000 000
Peta
1015
P
x 1 000 000 000 000 000
Tera
1012
T
x 1 000 000 000 000
Giga
109
G
x 1 000 000 000
Mega
106
ṁ
x 1 000 000
Kilo
103
k
x 1 000
Hecto
102
h
x 100
Deca
101
da
x 10
Deci
10-1
d
/ 10
Centi
10-2
c
/ 100
Milli
10-3
m
/ 1 000
Micro
10-6
μ
/ 1 000 000
Nano
10-9
n
/ 1 000 000 000
Pico
10-12
p
/ 1 000 000 000 000
Femto
10-15
f
/ 1 000 000 000 000 000
Atto
10-18
a
/ 1 000 000 000 000 000 000
Conversion table, mass
kg
t
lb
0.001
2.2046
1,000
2,204.6
0.4536
0.0004536
Conversion table, lengths
in
ft
yd
39.37
3.281
1.094
0.0254
0.08333
0.02778
0.3048
12
0.3333
0.9144
36
3.0
Conversion table, areas
m²
in²
ft²
yd²
1,550
10.764
1.196
0.000645
0.006944
0.000771
0.0929
144
0.1111
0.8361
1,296
9.0
Conversion table, volumes
m³
in³
ft³
yd³
61,023
35.3198
1.3093
0.000016
0.000579
0.000021
0.0283
1,728
0.0370
0.7646
46,656
27.0
Conversion factors
Length
=
Conversion factor x
Area
Conversion factor x2
Volume
Conversion factor x3
Conversion table, pressure
bar
atm
m WS
m Hg
psi
kgf/cm²
0.9869
10.20
0.7502
14.503
1.0194
1.0133
10.33
0.7601
14.695
1.0329
0.09807
0.096784
0.073568
1.4223
0.09997
1.3330
1.3156
13.593
19.333
1.3588
0.06895
0.06805
0.7031
0.05173
0.07029
0.981
0.96817
10.003
0.73593
14.228
Correlation of derived SI units: bar = 1,000 mbar = 105 Pa (N/mm²)
Conversion table, temperature
K
°C
°F
-272.15
-457.87
274.15
33.8
255.92777
-17.22222
Conversion table, energy
kJ
kWh
kcal
PSh
BTU
t SKE
0.0002777
0.23901
0.0003774
0.94787
3.412·10-8
3600
860.436
1.35864
3,412.332
0.0001228
4.1839253
0.0011622
0.0015790
3.9658173
1.427·10-7
2,649.7085
0.7360301
633.30683
2,511.5792
9.040·10-5
1.0549969
0.0002930
0.2521548
0.0003981
3.599·10-8
2.930·107
8,141.2009
7.004·106
11,060.961
2.778·107
