Convert Kilowatt-hours per Kilogram to Joules per Gram
1 kilowatt-hour per kilogram (kWh/kg) = 3600 joules per gram (J/g). 1 J/g = 0.0002777777778 kWh/kg. Example: 15 kWh/kg = 15 × 3600 = 54000 J/g.
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1 kWh/kg = 3600 J/g
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk kilowatt-hour per kilogram to joule per gram converter to paste a column from Excel.
How to Convert Kilowatt-hour per Kilogram to Joule per Gram
- 1 kWh/kg = 3600 J/g
- 1 J/g = 0.0002777777778 kWh/kg
- Example: convert 15 kWh/kg to J/g: 15 kWh/kg = 15 × 3600 J/g = 54000 J/g
Formula
J/g = kWh/kg × 3600
Derivation from SI units:
- 1 kWh/kg = 3.6 × 10⁶ J/kg.
- 1 J/g = 1 kJ/kg.
- 1 kWh/kg = 3600000 J/kg ÷ 1000 J/kg per J/g = 3600 J/g
Both units are defined exactly, so the factor is exact. Kilowatt-hour per Kilogram definition: kilowatt-hour per kilogram; Joule per Gram definition: joule per gram.
Worked examples
- A reading of 1 kWh/kg converts to 3600 J/g.
1 kWh/kg × 3600 = 3600 J/g - A value of 12 kWh/kg is 43200 J/g.
12 kWh/kg × 3600 = 43200 J/g
Kilowatt-hour per Kilogram to Joule per Gram conversion table
| Kilowatt-hours per Kilogram (kWh/kg) | Joules per Gram (J/g) |
|---|---|
| 0.1 kWh/kg | 360 J/g |
| 0.15 kWh/kg | 540 J/g |
| 0.25 kWh/kg | 900 J/g |
| 1 kWh/kg | 3600 J/g |
| 5 kWh/kg | 18000 J/g |
| 8 kWh/kg | 28800 J/g |
| 12 kWh/kg | 43200 J/g |
| 12.7 kWh/kg | 45720 J/g |
| 33.3 kWh/kg | 119880 J/g |
| 39.4 kWh/kg | 141840 J/g |
Where it's used
Kilowatt-hours per Kilogram are used for battery gravimetric energy density, while joules per gram appear in DSC melting and crystallisation enthalpy. Both measure specific energy: enthalpy, latent heat and heating value per mass, so the conversion is a fixed factor.
Kilowatt-hour per Kilogram to other specific energy units
| Conversion | 1 kWh/kg equals |
|---|---|
| kilowatt-hour per kilogram to joule per gram | 3600 J/g |
| kilowatt-hour per kilogram to kilojoule per kilogram | 3600 kJ/kg |
| kilowatt-hour per kilogram to megajoule per kilogram | 3.6 MJ/kg |
| kilowatt-hour per kilogram to BTU per pound | 1547.72141 BTU/lb |
| kilowatt-hour per kilogram to kilocalorie per kilogram | 859.8452279 kcal/kg |
| kilowatt-hour per kilogram to joule per kilogram | 3600000 J/kg |
| kilowatt-hour per kilogram to calorie per gram | 859.8452279 cal/g |
Frequently asked questions
How many joules per gram are in 1 kilowatt-hour per kilogram?
1 kWh/kg = 3600 J/g.
How do I convert kilowatt-hours per kilogram to joules per gram?
Multiply the value in kWh/kg by 3600. For example, 15 kWh/kg × 3600 = 54000 J/g.
Is the kWh/kg to J/g conversion exact?
Yes. Both units are defined exactly, and 1 kWh/kg is exactly 3600 J/g.
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 Kilowatt-hours per Kilogram to Joules per Gram. Retrieved October 29, 2026, from https://scientificconverters.com/specific-energy/kilowatt-hours-per-kilogram-to-joules-per-gram/
IEEE
Scientific Converters, "Convert Kilowatt-hours per Kilogram to Joules per Gram," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/specific-energy/kilowatt-hours-per-kilogram-to-joules-per-gram/