A small selection
of useful conversion factors used as part of the project to save money plus reduce energy consumption and CO2 emissions.
Area & Length |
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1 centimetre = 0.3937 inches |
1 inch = 2.54 centimetres |
1 square centimetre = 0.15500031 square inches |
1 square inch = 6.4516 square centimetres |
1 square metre = 10.763910417 square feet |
1 square foot = 0.09290304 square metres |
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CO2 Generation |
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Using 1 KiloWatt Hour of electricity
generates 0.5453 Kg CO2 |
These figures are approximations since the actual value depends on the efficiency of the transmission system and the mix of generation types in the case of electricity and the efficiency of the burning process in the case of oil and gas. Utility companies often provide a CO2 figure for their gas and electricity which is more accurate. |
Burning 1 Litre of Heating Oil generates 2.68 Kg CO2 |
Using 1 KiloWatt Hour of gas
generates 0.185 Kg CO2 |
Using 1 Therm (100 Cubic Feet) of Natural Gas generates 5.5 Kg CO2 |
I Cubic Metre of Natural Gas generates 1.9 Kg of CO2 |
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Electrical |
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1 KiloWatt Hour = 1000 Watts for 1 hour |
1 Watt for 1 hour = 0.001 KiloWatt Hours |
1 Megawatt = 1000000 Watts |
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Expansion Of Liquids |
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Expansion Of Heating Oil With Temperature: 0.001/Degree C/Litre or 0.00056/Degree F/Litre |
0.001/Degree C/Gallon or 0.00056/Degree F/Gallon |
Expansion Of Water With Temperature: 0.00018/Degree C/Litre or 0.00010/Degree F/Litre |
0.00018/Degree C/Gallon or 0.00010/Degree F/Gallon |
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Gas |
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100 Cubic Feet = 2.83 Cubic Metres of Natural Gas |
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1 Therm = 100 Cubic Feet of Natural Gas |
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Heating |
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1 BTU (British Thermal Unit) = 0.29291154 KW |
1 KW = 3414 BTU |
1 BTU (British thermal unit = 1.055 kJ (Kilo Joule) |
1 kJ = 0.9478672985781991 BTU |
1 J (Joule) = 0.2388 cal (calories) |
1 cal = = 4.1868 J |
(Temp in Fahrenheit -32 ) x 0.55555 = Temp in Centigrade |
(Temp in Centigrade * 1.8 ) + 32 = Temp in Fahrenheit |
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Water |
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1 bar = 14.5 pounds per square inch |
1 pound per square inch = 0.0690 bar |
1 cubic metre = 1000 litres |
1 litre = 0.001 cubic metres |
1 litre = 0.2193 UK gallons |
1 UK gallon = 4.5609 litres |
| 1 litre = 0.2642 US gallons |
1 US gallon = 3.7854 litres |
| 1 UK gallon = 1.2009 US gallons |
1 US gallon = 0.8327 UK gallons |
| 1 litre weighs 1Kg |
1 gallon wieghs 10lbs |
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Weight |
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1000 Kg = 0.9842064393 Ton |
1 Ton = 1016.047 Kg |
1 Kg = 2.2046226216 lb (pounds) |
1 lb (pound) = 0.45359237 Kg |
