BTUs to Nanojoules Converter
Enter the energy in btus below to convert it to nanojoules.
Convert BTUs to Nanojoules
Enter a value in btus (BTU) to convert to nanojoules (nJ).
British Thermal Unit to Nanojoule Conversion Table
Table showing various british thermal unit measurements converted to nanojoules. Click any preset value or arrow to load it into the converter.
| BTUs (BTU) | Nanojoules (nJ) |
|---|---|
| 0.0000001 BTU | 105,505.585262 nJ |
| 0.0000002 BTU | 211,011.170524 nJ |
| 0.0000003 BTU | 316,516.755786 nJ |
| 0.0000004 BTU | 422,022.341048 nJ |
| 0.0000005 BTU | 527,527.92631 nJ |
| 0.0000006 BTU | 633,033.511572 nJ |
| 0.0000007 BTU | 738,539.096834 nJ |
| 0.0000008 BTU | 844,044.682096 nJ |
| 0.0000009 BTU | 949,550.267358 nJ |
| 0.00000001 BTU | 10,550.5585262 nJ |
How to Convert BTUs to Nanojoules
To convert btus to nanojoules, multiply the energy by the following conversion ratio: 1.055056e+12 nanojoules/british thermal unit.
Since one british thermal unit is equal to 1.055056e+12 nanojoules, you can use this simple formula to convert:
The energy in nanojoules is equal to the energy in btus multiplied by 1.055056e+12.
For example, here's how to convert 5 btus to nanojoules using the formula above.
How Many Nanojoules Are in a British Thermal Unit?
There are 1.055056e+12 nanojoules in a british thermal unit, which is why we use this value in the formula above.
Our british thermal unit to nanojoule calculator automatically converts your energy measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
BTUs and nanojoules are both units used to measure energy. Keep reading to learn more about each unit.
What Is a British Thermal Unit?
A british thermal unit is a unit of energy equal to 1,055.0558526 joules (J), the base unit for energy. Thermal energy unit equal to 1,055.056 Joules. [1]
The british thermal unit is classified as a US customary and imperial unit of energy. BTUs can be abbreviated as BTU; for example, 1 british thermal unit can be written as 1 BTU.
When working with btus (BTU) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, btus (BTU) are widely used across large-scale industrial, bulk, and macro-level energy specifications within US customary and imperial workflows, engineering documentation, and technical data sheets.
What Is a Nanojoule?
A nanojoule is a unit of energy equal to 1/1,000,000,000 of a joule (1e-9 J). One-billionth of a Joule. [2]
The nanojoule is classified as a metric and SI-compatible unit of energy. Nanojoules can be abbreviated as nJ; for example, 1 nanojoule can be written as 1 nJ.
In the metric system, "nano" is the standard SI prefix for billionths, or 10⁻⁹. This makes the nanojoule (nJ) a convenient decimal multiple of the joule (J).
In practice, nanojoules (nJ) are widely used across fine-tolerance laboratory, analytical, and micro-scale energy measurements within SI metric workflows, engineering documentation, and technical data sheets.
When converting energy between btus (BTU) and nanojoules (nJ), keep full floating-point precision (1 BTU = 1.055056e+12 nJ; 1 nJ = 9.478171e-13 BTU) during intermediate calculations and round only the final nanojoule figure to match your instrument tolerance.
More British Thermal Unit & Nanojoule Conversions
Need to calculate in the opposite direction? Use our nanojoules to btus calculator to switch your starting unit immediately. You can also explore related tools such as converting nanojoules to btus, converting btus to joules, or converting btus to kilowatt-hours.
Frequently Asked Questions
References
- [1]NIST CODATA StandardNIST CODATA (CODATA Energy & Thermodynamic Constants)·Energy Metrology Standard — BTUs (BTU) to Nanojoules (nJ)
- [2]NIST SP 811 SpecificationNIST SP 811 (NIST SP 811 App. B.9 (Energy, Work & Heat))·Unit Specifications: British Thermal Unit (BTU) (BTU) & Nanojoule (nJ)
- [3]BIPM ReferenceBIPM (Derived SI Unit: Joule (J))·Conversion Factors & Mathematical Basis (BTU to nJ)