To use these
tables look up your existing unit, move along to the "1" then move up or down
the column to the coversion factor: |
example: To find MJ equivalent of
4,500 Btu.
Move to the 1 in the Btu row, up to the MJ row, the factor is .001055 (approx). Multiply
4,500 by 0.001055 = 4.7475 MJ |
| |
|
|
|
|
| Joule |
1 |
4.186 |
|
|
| Calorie |
0.2389 |
1 |
|
|
| |
|
|
|
|
| Mega-Joule MJ |
1 |
0.001055 |
105.506 |
|
| British Thermal Unit Btu |
947.81 |
1 |
100000 |
|
| Therm |
0.0095 |
0.00001 |
1 |
|
| |
|
|
|
|
| 1 Btu = 1055.06 J (exactly) |
|
|
|
|
| 1 kWh = 3.6 MJ = 3412 Btu |
|
|
|
|
| 1 hp = 745.7 W |
|
|
|
|
| 1 kW = 3412 Btu/hr = 1.341 hp |
|
|
|
|
| |
|
|
|
|
| MJ/m³ |
1 |
0.037244 |
|
|
| Btu/ft³ |
26.85 |
1 |
|
|
| |
|
|
|
|
| metre |
1 |
0.304785 |
|
|
| foot |
3.281 |
1 |
|
|
| |
|
|
|
|
| litre |
1 |
3.785 |
4.546 |
|
| US gallon * |
0.22 |
1 |
1.20106 |
|
| gallon (imperial) * |
0.2642 |
0.8326 |
1 |
|
| |
|
|
|
|
| litre |
1 |
0.001 |
0.03531 |
|
| cubic meter m³ |
1000 |
1 |
0.02831 |
|
| cubic foot ft³ |
28.32 |
35.32 |
1 |
|
| |
|
|
|
|
| oz |
1 |
0.03527 |
|
|
| g |
28.35 |
1 |
|
|
| |
|
|
|
|
| lb |
1 |
2.204586 |
2240 |
2205 |
| kg |
0.4536 |
1 |
1016.06 |
1000 |
| Ton (imperial) |
-- |
-- |
1 |
0.9842 |
| tonne (metric) |
-- |
-- |
1.016 |
1 |
| |
|
|
|
|
| lbf/in² (psi) |
1 |
0.145033 |
0.03626 |
14.504 |
| kPa |
6.895 |
1 |
0.25 |
100 |
| in H²O |
27.58 |
4 |
1 |
-- |
| bar |
0.0689 |
0.01 |
-- |
1 |
| |
|
|
|
|
| 1 bar = 100,000 Pa |
|
|
|
|
| |
|
|
|
|
| US gallon water @60°F = 8.35 lbs |
|
|
|
|
| Imp gallon water @60°F = 6.95 lbs |
|
|
|
|
| litres/Tonne = |
1,000,000/
(kg/m3) water |
|
|
|
| gal/Tonne = |
2205/(lb/gal) |
|
|
|
| |
|
|
|
|
| °C = (°F - 32) x 5 / 9 |
|
|
|
|
| °K = °C + 273.15 |
|
|
|
|
| |
|
|
|
|
| 1 kcalorie = heat to raise 1kg of water 14.5 to
15.5°C |
|
|
|
|
| 1 Btu = heat to raise 1lb of water 63 to 64°F |
|
|
|
|
| Wobbe index is ratio: heating value to sq root
of specific gravity |
|
|
|
|
| Standard temperature & pressure is 0°C @
101.325 kPa |
|
|
|
|
| Standard volume is at 15°C & 101.325 kPa |
|
|
|
|
| |
|
|
|
|
| Multipliers |
Symbol |
|
|
|
| Zetta |
Z |
10^21 |
|
|
| Exa |
E |
10^18 |
|
|
| peta |
P |
10^15 |
|
|
| tera |
T |
10^12 |
|
|
| giga |
G |
10^9 |
|
|
| mega |
M |
10^6 |
|
|
| kilo |
k |
10^3 |
|
|
| milli |
m |
10^(-3) |
|
|
| micron |
µ |
10^(-6) |
|
|
| nano |
n |
10^(-9) |
|
|
| pico |
p |
10^(-12) |
|
|
| femto |
f |
10^(-15) |
|
|
| atto |
a |
10^(-18) |
|
|
| zepto |
z |
10^(-21) |
|
|
