Quick answer
1,500 kcal = 6,276 kJ. Multiply 1,500 by 4.184 to check: 1,500 × 4.184 = 6,276.
How to convert 1500 calories to kJ
- Start with 1,500 calories (kcal).
- Multiply by 4.184: 1,500 × 4.184 = 6,276 kJ.
- For joules, multiply by 4,184: that gives 6,276,000 J.
You may also see this searched as 1500 cal to kj or 1500 calories to kilojoules. A small calorie (cal) is different: 1,500 cal is 6.276 kJ. Food labels almost always mean kcal. See the calories to kJ converter for more.
1500 kcal in context
- 72% of the 8,700 kJ average-adult reference day on Australian and New Zealand labels.
- 75% of a 2,000 kcal reference day, as used on EU and US labels.
- Reference intakes are label conventions. Your own needs depend on age, sex, size and activity. See how many kJ you should eat per day.
Good to know
1,500 kcal is 6,276 kJ, or three-quarters of a 2,000 kcal day.
Nearby conversions
| Calories (kcal) | Kilojoules (kJ) |
|---|---|
| 500 kcal | 2,092 kJ |
| 1,000 kcal | 4,184 kJ |
| 1,500 kcal | 6,276 kJ |
| 2,000 kcal | 8,368 kJ |
| 2,500 kcal | 10,460 kJ |
Browse all popular conversions or the calories to kJ chart.
Frequently asked questions
How many kJ is 1500 calories?
1500 calories (kcal) is 6,276 kJ. Multiply 1500 by 4.184 to check.
How many joules is 1500 kcal?
1500 kcal is 6,276,000 J, since 1 kcal is 4,184 J.
What percentage of a daily intake is 1500 kcal?
About 75% of a 2,000 kcal reference day, or about 72% of the 8,700 kJ reference day.
Last updated 11 Oct 2026. How we calculate.