1,000 Calories to kJ

The working

Shown to 2 decimal places, as the app shows it. One food Calorie (kcal) is 4.184 kilojoules.

kJ, Calories and kcal

Calories are the unit most recipes and fitness apps use. A food Calorie, written Cal here and also called kcal, is 4.184 kJ, and kilojoules (kJ) are what many food labels show. 1,000 Cal is 4,184 kJ, so a tracker that says 1,000 Cal and a label that says 4,184 kJ describe the same energy.

This is more than most single servings, so it is usually a total across several items.

For scale, half of this amount is 500 Cal, which is 2,092 kJ. Twice it is 2,000 Cal, which is 8,368 kJ.

Foods with about this much energy

• About the same as a Korean BBQ mealOne serving is 900 Cal (3,765.6 kJ).
• About the same as a Sunday roast dinnerOne serving is 850 Cal (3,556.4 kJ).
• About the same as a full English breakfastOne serving is 800 Cal (3,347.2 kJ).

These are everyday single-serving estimates from the app's food list, not nutrition labels. Recipes and portions vary. See the whole list.

Walking guide

114 to 306 min of walking.

Adult reference guide: 45 to 120 kg at a reference walking pace. Actual times may be outside this range. The exercise page lists the other activities.

Nearby values

• 800 Cal is 3,347.2 kJ
• 900 Cal is 3,765.6 kJ
• 1,100 Cal is 4,602.4 kJ
• 1,200 Cal is 5,020.8 kJ

• Previous: 900 Cal
• Next: 1,100 Cal
• The other way: 4,200 kJ to Calories
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