The British thermal unit (BTU) is the energy needed to raise one pound of water by one degree Fahrenheit, widely used for heating and air-conditioning ratings.
Btu to Ergs
Convert British thermal unit (BTU) to Erg (erg) instantly with an exact formula, conversion table, and FAQ.
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Convert btu (BTU) to ergs (erg) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
An erg is the CGS (centimeter-gram-second) unit of energy, equal to one ten-millionth of a joule.
erg = BTU × 10550558526
Results update instantly for Btu to Ergs conversions.
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Formula
erg = BTU × 10550558526
BTU = erg × 9.478171203e-11
Conversion table
| 1 BTU | 1.055056e+10 erg |
| 5 BTU | 5.275279e+10 erg |
| 10 BTU | 1.055056e+11 erg |
| 20 BTU | 2.110112e+11 erg |
| 50 BTU | 5.275279e+11 erg |
| 100 BTU | 1.055056e+12 erg |
| 500 BTU | 5.275279e+12 erg |
| 1000 BTU | 1.055056e+13 erg |
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How the formula works
Both british thermal unit and erg measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in btu by 10550558526 to get ergs. To reverse the conversion, multiply a erg value by 9.478171203e-11 to get back to btu.
Frequently asked questions
What is British thermal unit (BTU)?
The British thermal unit (BTU) is the energy needed to raise one pound of water by one degree Fahrenheit, widely used for heating and air-conditioning ratings.
What is Erg (erg)?
An erg is the CGS (centimeter-gram-second) unit of energy, equal to one ten-millionth of a joule.
How do I convert btu to ergs?
Multiply the british thermal unit value by 10550558526 to get the equivalent in ergs. For example, 5 BTU × 10550558526 = 5.275279e+10 erg.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 10550558526 is an exact, non-rounded value.
Can I convert ergs back to btu?
Yes. Divide the erg value by 10550558526, or multiply it by 9.478171203e-11, to get btu.
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About converting btu to ergs
The British thermal unit (BTU) is the energy needed to raise one pound of water by one degree Fahrenheit, widely used for heating and air-conditioning ratings. An erg is the CGS (centimeter-gram-second) unit of energy, equal to one ten-millionth of a joule.
Use this calculator to move between btu and ergs accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.