How to Convert Kilojoules to Therms (kJ to thm)
Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU. This guide shows how to convert kilojoules into therms by hand, with examples and a quick-reference table.
The conversion
To convert kilojoules to therms, multiply the value by 9.478171e-06. To go the other way, divide by the same number (or multiply by 105,505.585257). Because the factor is tiny, scientific notation keeps the numbers manageable.
Therms = kilojoules × 9.478171e-06
Worked examples
- 3 kJ = 2.843451e-5 thm
- 12.5 kJ = 0.000118 thm
- 75 kJ = 0.000711 thm
Kilojoules to Therms table
| Kilojoules | Therms |
|---|---|
| 1 kJ | 9.478171e-6 thm |
| 2 kJ | 1.895634e-5 thm |
| 5 kJ | 4.739086e-5 thm |
| 10 kJ | 9.478171e-5 thm |
| 20 kJ | 0.00019 thm |
| 25 kJ | 0.000237 thm |
| 50 kJ | 0.000474 thm |
| 100 kJ | 0.000948 thm |
| 250 kJ | 0.00237 thm |
| 500 kJ | 0.004739 thm |
| 1,000 kJ | 0.009478 thm |
Common questions
Is kJ to thm exact?
The factors used here are the internationally defined values where they exist; results are rounded for display only.
How do I convert back?
Use the Therms to Kilojoules converter.
Mistakes to avoid
Dropping the units
A bare number without a unit is easy to misread later. Always write the unit with the result.
Forgetting squared and cubed units
Area and volume factors are the length factor squared or cubed, so 1 m² is about 10.76 sq ft, not 3.28.
Mixing similar-sounding units
US and imperial gallons, pints and tons are different sizes, and decimal kilobytes differ from binary kibibytes.
Background
A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.
Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
For any value, use the Kilojoules to Therms Converter or browse all energy converters.
Run your own numbers: Kilojoules to Therms Converter