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1,000 Calories to Kilojoules

Answer
1,000 cal = 4.184 kJ
kilojoules = calories × 0.004184
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4.184

1,000 calories = 4.184 kilojoules · open this conversion

How the answer is worked out

One calorie is 0.004184 kilojoules, so converting is a single multiplication:

1,000 cal × 0.004184 = 4.184 kJ

Conversion table around 1,000 cal

CaloriesKilojoules
1 cal0.004184 kJ
2 cal0.008368 kJ
5 cal0.02092 kJ
10 cal0.04184 kJ
20 cal0.08368 kJ
25 cal0.1046 kJ
50 cal0.2092 kJ
100 cal0.4184 kJ
150 cal0.6276 kJ
200 cal0.8368 kJ
250 cal1.046 kJ
300 cal1.2552 kJ
400 cal1.6736 kJ
500 cal2.092 kJ
600 cal2.5104 kJ
800 cal3.3472 kJ
1,000 cal4.184 kJ
1,500 cal6.276 kJ
2,000 cal8.368 kJ
2,500 cal10.46 kJ
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Nearby conversions

500 cal to kJ600 cal to kJ800 cal to kJ1,500 cal to kJ2,000 cal to kJ2,500 cal to kJ
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Related conversions

⇄ 1,000 Kilojoules to Calories1,000 Calories to Joules1,000 Calories to Kilocalories1,000 Calories to Watt hours1,000 Calories to Kilowatt hours

Frequently asked questions

▸How many kilojoules is 1,000 calories?
1,000 calories is 4.184 kilojoules. The conversion multiplies by 0.004184, so 1,000 × 0.004184 = 4.184.
▸What is the formula to convert calories to kilojoules?
kilojoules = calories × 0.004184. One calorie is 0.004184 kilojoules.
▸How do I convert 1,000 kilojoules back to calories?
Use the reverse conversion: 1,000 kilojoules is 239,005.7 calories.
▸Is this conversion exact?
The underlying factor is exact as defined by the SI and the 1959 international agreements. The figure shown is rounded to seven significant digits for readability.
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