Convert Megajoules per Kilogram to Joules per Kilogram
1 megajoule per kilogram (MJ/kg) = 1000000 joules per kilogram (J/kg). 1 J/kg = 0.000001 MJ/kg. Example: 15 MJ/kg = 15 × 1000000 = 15000000 J/kg.
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1 MJ/kg = 1000000 J/kg
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk megajoule per kilogram to joule per kilogram converter to paste a column from Excel.
How to Convert Megajoule per Kilogram to Joule per Kilogram
- 1 MJ/kg = 1000000 J/kg
- 1 J/kg = 0.000001 MJ/kg
- Example: convert 15 MJ/kg to J/kg: 15 MJ/kg = 15 × 1000000 J/kg = 15000000 J/kg
Formula
J/kg = MJ/kg × 1000000
Derivation from SI units:
- 1 MJ/kg = 10⁶ J/kg.
- Energy per unit mass: J/kg (also m²/s²).
Both units are defined exactly, so the factor is exact. Megajoule per Kilogram definition: megajoule per kilogram; Joule per Kilogram definition: joule per kilogram.
Worked examples
- A reading of 25 MJ/kg converts to 25000000 J/kg.
25 MJ/kg × 1000000 = 25000000 J/kg - A value of 44 MJ/kg is 44000000 J/kg.
44 MJ/kg × 1000000 = 44000000 J/kg
Megajoule per Kilogram to Joule per Kilogram conversion table
| Megajoules per Kilogram (MJ/kg) | Joules per Kilogram (J/kg) |
|---|---|
| 10 MJ/kg | 10000000 J/kg |
| 15 MJ/kg | 15000000 J/kg |
| 17 MJ/kg | 17000000 J/kg |
| 25 MJ/kg | 25000000 J/kg |
| 30 MJ/kg | 30000000 J/kg |
| 42 MJ/kg | 42000000 J/kg |
| 44 MJ/kg | 44000000 J/kg |
| 46 MJ/kg | 46000000 J/kg |
| 50 MJ/kg | 50000000 J/kg |
| 120 MJ/kg | 120000000 J/kg |
Where it's used
Megajoules per Kilogram are used for fuel calorific values (GCV, NCV), while joules per kilogram appear in specific enthalpy h and internal energy u. Both measure specific energy: enthalpy, latent heat and heating value per mass, so the conversion is a fixed factor.
Megajoule per Kilogram to other specific energy units
| Conversion | 1 MJ/kg equals |
|---|---|
| megajoule per kilogram to joule per kilogram | 1000000 J/kg |
| megajoule per kilogram to kilojoule per kilogram | 1000 kJ/kg |
| megajoule per kilogram to BTU per pound | 429.9226139 BTU/lb |
| megajoule per kilogram to kilocalorie per kilogram | 238.8458966 kcal/kg |
| megajoule per kilogram to calorie per gram | 238.8458966 cal/g |
| megajoule per kilogram to kilowatt-hour per kilogram | 0.2777777778 kWh/kg |
| megajoule per kilogram to joule per gram | 1000 J/g |
Frequently asked questions
How many joules per kilogram are in 1 megajoule per kilogram?
1 MJ/kg = 1000000 J/kg.
How do I convert megajoules per kilogram to joules per kilogram?
Multiply the value in MJ/kg by 1000000. For example, 15 MJ/kg × 1000000 = 15000000 J/kg.
Is the MJ/kg to J/kg conversion exact?
Yes. Both units are defined exactly, and 1 MJ/kg is exactly 1000000 J/kg.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (derived units with special names).
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Megajoules per Kilogram to Joules per Kilogram. Retrieved October 29, 2026, from https://scientificconverters.com/specific-energy/megajoules-per-kilogram-to-joules-per-kilogram/
IEEE
Scientific Converters, "Convert Megajoules per Kilogram to Joules per Kilogram," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/specific-energy/megajoules-per-kilogram-to-joules-per-kilogram/