1000 Calories to kJ
1000 kcal = 4184 kJ
1000 kilocalories (food Calories) equals 4184 kilojoules.
How to convert 1000 kcal to kJ
Use the formula kJ = kcal × 4.184:
kJ = 1000 × 4.184kJ = 4184
So 1000 kcal = 4184 kJ.
Rounded values and quick estimate
- Rounded to a whole number: 4,184 kJ
- Rounded to one decimal place: 4,184 kJ
- Conversion factor: 1 kilocalorie (food Calorie) = 4.18 kilojoules
This conversion is exact, so there is no need to estimate: just multiply by 4.184.
1000 Calories in other units
- Kilojoules
- 4184 kJ
- Joules
- 4184000 J
- Calories
- 1000000 cal
- US therms
- 0.0397 thm
- Kilowatt-hours
- 1.16 kWh
1000 kcal and nearby values
| Kilocalories (food Calories) | Kilojoules |
|---|---|
| 996 kcal | 4167.26 kJ |
| 997 kcal | 4171.45 kJ |
| 998 kcal | 4175.63 kJ |
| 999 kcal | 4179.82 kJ |
| 1000 kcal | 4184 kJ |
| 1001 kcal | 4188.18 kJ |
| 1002 kcal | 4192.37 kJ |
| 1003 kcal | 4196.55 kJ |
| 1004 kcal | 4200.74 kJ |
About kilocalories (food calories) and kilojoules
A kilocalorie is 1,000 small calories, written “Calorie” on food labels. 1 kcal = 4.184 kJ.
A kilojoule is 1,000 joules. Food labels in Australia, the EU and elsewhere show energy in kJ.
Related conversions
Frequently asked questions
What is 1000 Calories in kJ?
1000 kilocalories (food Calories) is 4184 kilojoules (1000 kcal = 4184 kJ).
How do you convert 1000 kcal to kJ?
Apply kJ = kcal × 4.184: kJ = 1000 × 4.184, kJ = 4184.
How many kilocalories (food Calories) is 4184 kJ?
4184 kJ is about 1000 kilocalories (food Calories).