Heat Density Converter
Heat density expresses thermal energy per unit volume. The SI unit is the joule per cubic metre (J/m³).
1 Joule/Meter³ = 0.001 Kilojoule/Meter³
How to convert Joule/Meter³ to Kilojoule/Meter³
One Joule/Meter³ equals 0.001 Kilojoule/Meter³, so multiply any value in J/m³ by 0.001 to get kJ/m³. To convert back, divide by 0.001 — or multiply by 1,000.
kJ/m³ = J/m³ × 0.001
Example: 25 J/m³ × 0.001 = 0.025 kJ/m³.
Joule/Meter³ to Kilojoule/Meter³ table
| Joule/Meter³ (J/m³) | Kilojoule/Meter³ (kJ/m³) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 4 | 0.004 |
| 5 | 0.005 |
| 10 | 0.01 |
| 15 | 0.015 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 75 | 0.075 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1,000 | 1 |
Kilojoule/Meter³ to Joule/Meter³ table
| Kilojoule/Meter³ (kJ/m³) | Joule/Meter³ (J/m³) |
|---|---|
| 1 | 1,000 |
| 2 | 2,000 |
| 3 | 3,000 |
| 4 | 4,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 15 | 15,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 75 | 75,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 1,000 | 1,000,000 |
Heat Density units at a glance
All 10 units this converter supports, each expressed in Joule/Meter³ (J/m³) and the other way round.
| Unit | Symbol | 1 unit in J/m³ | 1 J/m³ in unit |
|---|---|---|---|
| Joule/Meter³ | J/m³ | 1 | 1 |
| Kilojoule/Meter³ | kJ/m³ | 1,000 | 0.001 |
| Megajoule/Meter³ | MJ/m³ | 1,000,000 | 0.000001 |
| Joule/Liter | J/L | 1,000 | 0.001 |
| Kilojoule/Liter | kJ/L | 1,000,000 | 0.000001 |
| Calorie/cm³ | cal/cm³ | 4,184,000 | 2.390057361e-7 |
| Kilocalorie/m³ | kcal/m³ | 4,184 | 0.0002390057361 |
| BTU/Foot³ | BTU/ft³ | 37,258.94581 | 0.00002683919199 |
| BTU/Gallon (US) | BTU/gal | 278,716.2699 | 0.000003587878096 |
| Megajoule/Liter | MJ/L | 1,000,000,000 | 1e-9 |
Where heat density conversions are used
Comparing fuels by the energy they hold per litre, sizing thermal storage, and combustion engineering.
Frequently asked questions
What is 1 Joule/Meter³ in Kilojoule/Meter³?
1 Joule/Meter³ (J/m³) is 0.001 Kilojoule/Meter³ (kJ/m³).
What is 1 Kilojoule/Meter³ in Joule/Meter³?
1 Kilojoule/Meter³ (kJ/m³) is 1,000 Joule/Meter³ (J/m³).
How do I convert Joule/Meter³ to Kilojoule/Meter³?
Multiply the value in Joule/Meter³ by 0.001. For example, 5 J/m³ × 0.001 = 0.005 kJ/m³. To go the other way, divide by 0.001.
How many units does the heat density converter support?
It converts between 10 units: Joule/Meter³, Kilojoule/Meter³, Megajoule/Meter³, Joule/Liter, Kilojoule/Liter, Calorie/cm³, Kilocalorie/m³, BTU/Foot³, BTU/Gallon (US), Megajoule/Liter.
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Figures on this page are calculated with the same conversion factors as the converter above and shown to up to 10 significant figures. See our disclaimer before relying on a result in a professional or safety-critical context.