Common Energy Conversions

Find the most commonly used conversions between kilojoules and calories. All values are rounded to the nearest whole number for convenience.

Conversion formula: 1 kilojoule (kJ) = 0.239 calories (cal)

Kilojoules to Calories

Kilojoules (kJ)	Calories (cal)	Details
2000 kJ	478 cal	View
1800 kJ	430 cal	View
1600 kJ	382 cal	View
1400 kJ	335 cal	View
1200 kJ	287 cal	View
1000 kJ	239 cal	View
900 kJ	215 cal	View
800 kJ	191 cal	View
700 kJ	167 cal	View
600 kJ	143 cal	View
500 kJ	120 cal	View
400 kJ	96 cal	View
300 kJ	72 cal	View
200 kJ	48 cal	View
150 kJ	36 cal	View
100 kJ	24 cal	View

Calories to Kilojoules

Calories (cal)	Kilojoules (kJ)	Details
500 cal	2092 kJ	View
450 cal	1883 kJ	View
400 cal	1674 kJ	View
350 cal	1464 kJ	View
300 cal	1255 kJ	View
250 cal	1046 kJ	View
200 cal	837 kJ	View
150 cal	628 kJ	View
100 cal	418 kJ	View
75 cal	314 kJ	View
50 cal	209 kJ	View

Common Food Energy Values

Food Item	Kilojoules (kJ)	Calories (cal)
Average meal	2000 kJ	478 cal
Cheeseburger	1200 kJ	287 cal
Bowl of cereal with milk	800 kJ	191 cal
Banana	400 kJ	96 cal
Apple	300 kJ	72 cal
Slice of bread	250 kJ	60 cal

Daily Energy Requirements

The average daily energy requirements for adults vary based on factors like age, gender, weight, and activity level:

Category	Kilojoules (kJ)	Calories (cal)
Sedentary adult female	7,100 - 7,900 kJ	1,700 - 1,900 cal
Active adult female	8,400 - 10,000 kJ	2,000 - 2,400 cal
Sedentary adult male	8,400 - 9,600 kJ	2,000 - 2,300 cal
Active adult male	10,400 - 12,500 kJ	2,500 - 3,000 cal