Daily Calorie Needs Calculator (TDEE)
Estimated daily energy needs from your BMR and physical activity level.
Food Energy Converter (kcal ↔ kJ)
Convert food energy between kilocalories and kilojoules.
Your result will appear here
Enter your measurements, then press Calculate.
Methodology
Thermochemical calorie
1 kcal = 4.184 kJ
Food labels use the thermochemical calorie: 1 kcal = 4.184 kJ.
- Who it is for
- Any result reported in these units.
- Version
- 1.0.0
Limitations
- Check which unit your laboratory uses before converting.
References
- Bureau International des Poids et Mesures. The International System of Units (SI). 9th edition. Sèvres: BIPM; 2019 (updated 2024). https://www.bipm.org/en/publications/si-brochure