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 Microjoules
Convert British thermal unit (BTU) to Microjoule (uJ) instantly with an exact formula, conversion table, and FAQ.
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Convert btu (BTU) to microjoules (uJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A microjoule (uJ) is a metric-prefixed unit of energy equal to 10-6 joules, a fraction of a single joule, using the SI micro prefix.
uJ = BTU × 1055055853
Results update instantly for Btu to Microjoules conversions.
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Formula
uJ = BTU × 1055055853
BTU = uJ × 9.478171203e-10
Conversion table
| 1 BTU | 1.055056e+09 uJ |
| 5 BTU | 5.275279e+09 uJ |
| 10 BTU | 1.055056e+10 uJ |
| 20 BTU | 2.110112e+10 uJ |
| 50 BTU | 5.275279e+10 uJ |
| 100 BTU | 1.055056e+11 uJ |
| 500 BTU | 5.275279e+11 uJ |
| 1000 BTU | 1.055056e+12 uJ |
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How the formula works
Both british thermal unit and microjoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in btu by 1055055853 to get microjoules. To reverse the conversion, multiply a microjoule value by 9.478171203e-10 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 Microjoule (uJ)?
A microjoule (uJ) is a metric-prefixed unit of energy equal to 10-6 joules, a fraction of a single joule, using the SI micro prefix.
How do I convert btu to microjoules?
Multiply the british thermal unit value by 1055055853 to get the equivalent in microjoules. For example, 5 BTU × 1055055853 = 5.275279e+09 uJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1055055853 is an exact, non-rounded value.
Can I convert microjoules back to btu?
Yes. Divide the microjoule value by 1055055853, or multiply it by 9.478171203e-10, to get btu.
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About converting btu to microjoules
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. A microjoule (uJ) is a metric-prefixed unit of energy equal to 10-6 joules, a fraction of a single joule, using the SI micro prefix.
Use this calculator to move between btu and microjoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.