Joules to Therms: 1 J equals 9.47813e-9 therm. To convert joules to therms, multiply by 9.47813e-9 (therm = J × 9.4781e-9). For example, 10 J = 9.47813e-8 therm.
How to Convert Joules to Therms
To convert from joules to therms, multiply the value by 9.47813e-9. The conversion is linear, meaning doubling the input doubles the output.
Conversion Formula
- Joules to Therms:
therm = J × 9.4781e-9 - Therms to Joules:
J = therm ÷ 9.4781e-9
Joules to Therms Conversion Chart
| Joules (J) | Therms (therm) |
|---|---|
| 0.1 | 9.47813e-10 |
| 0.25 | 2.36953e-9 |
| 0.5 | 4.73907e-9 |
| 1 | 9.47813e-9 |
| 2 | 1.89563e-8 |
| 3 | 2.84344e-8 |
| 5 | 4.73907e-8 |
| 10 | 9.47813e-8 |
| 20 | 1.89563e-7 |
| 25 | 2.36953e-7 |
| 50 | 4.73907e-7 |
| 100 | 9.47813e-7 |
| 250 | 2.36953e-6 |
| 1000 | 9.47813e-6 |
Understanding the Units
What is a Joule?
The joule is the SI derived unit of energy, equal to the work done by a force of one newton acting through a distance of one meter (1 J = 1 N·m = 1 W·s).
Named after James Prescott Joule (1818–1889), the English physicist who demonstrated the mechanical equivalent of heat.
Common contexts: physics, chemistry, engineering.
What is a Therm?
A therm equals exactly 100,000 BTU, or about 105.5 megajoules — the standard unit for retail natural gas in the US and UK.
Common contexts: natural gas billing.
Real-World Reference Points
| Item | Joules (J) | Therms (therm) |
|---|---|---|
| Energy to lift an apple 1 m | 1 | 9.478e-9 |
| Heart beat (resting) | 1 | 9.478e-9 |
| AA battery (alkaline) | 9000 | 8.530e-5 |