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 Nanojoules
Convert British thermal unit (BTU) to Nanojoule (nJ) instantly with an exact formula, conversion table, and FAQ.
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Convert btu (BTU) to nanojoules (nJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A nanojoule (nJ) is a metric-prefixed unit of energy equal to 10-9 joules, a fraction of a single joule, using the SI nano prefix.
nJ = BTU × 1055055852620
Results update instantly for Btu to Nanojoules conversions.
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Formula
nJ = BTU × 1055055852620
BTU = nJ × 9.478171203e-13
Conversion table
| 1 BTU | 1.055056e+12 nJ |
| 5 BTU | 5.275279e+12 nJ |
| 10 BTU | 1.055056e+13 nJ |
| 20 BTU | 2.110112e+13 nJ |
| 50 BTU | 5.275279e+13 nJ |
| 100 BTU | 1.055056e+14 nJ |
| 500 BTU | 5.275279e+14 nJ |
| 1000 BTU | 1.055056e+15 nJ |
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How the formula works
Both british thermal unit and nanojoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in btu by 1055055852620 to get nanojoules. To reverse the conversion, multiply a nanojoule value by 9.478171203e-13 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 Nanojoule (nJ)?
A nanojoule (nJ) is a metric-prefixed unit of energy equal to 10-9 joules, a fraction of a single joule, using the SI nano prefix.
How do I convert btu to nanojoules?
Multiply the british thermal unit value by 1055055852620 to get the equivalent in nanojoules. For example, 5 BTU × 1055055852620 = 5.275279e+12 nJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1055055852620 is an exact, non-rounded value.
Can I convert nanojoules back to btu?
Yes. Divide the nanojoule value by 1055055852620, or multiply it by 9.478171203e-13, to get btu.
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About converting btu to nanojoules
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 nanojoule (nJ) is a metric-prefixed unit of energy equal to 10-9 joules, a fraction of a single joule, using the SI nano prefix.
Use this calculator to move between btu and nanojoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.