Kilojoules to Calories Converter
Exercise times are estimates for a 70 kg adult.
The answer: 150 kJ converts to 35.85 Calories. Food Calories and kcal are the same unit, so that’s also 35.85 kcal (150 ÷ 4.184).
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How To Convert 150 kJ To Calories
- Take 150 kJ from the label, app or recipe.
- Work out 150 ÷ 4.184 = 35.851.
- Round to 36 Calories for tracking, or keep 35.9 kcal if you need a decimal.
No calculator handy? Divide by 4 and subtract 4%: 150 ÷ 4 = 37.5, minus 4% ≈ 36. The exact answer is 35.85, so the shortcut is within about one Calorie per 1,000 kJ.
Is 150 kJ A Lot?
150 kJ (36 Calories) is typical of a light snack: a piece of fruit, a slice of bread, a small yoghurt or a plain biscuit or two. It’s a sensible size for a between-meals snack for most adults.
- Rice cake, plain (9 g), 146 kJ
- Broccoli, 1 cup chopped (91 g), 130 kJ
- Kiwifruit, medium (69 g), 176 kJ
- Green beans, 1 cup cooked (125 g), 184 kJ
Food values are typical servings; search more in the food kJ chart.
150 kJ On A Food Label
If 150 kJ is the per-serve figure on a nutrition panel, check the serving size next to it. Here is how the energy per 100 g changes with the size of that serve.
| Serving size | kJ per 100 g | kcal per 100 g | Energy density |
|---|---|---|---|
| 25 g serve | 600 kJ | 143 kcal | medium |
| 40 g serve | 375 kJ | 90 kcal | low |
| 60 g serve | 250 kJ | 60 kcal | low |
| 100 g serve | 150 kJ | 36 kcal | very low |
| 150 g serve | 100 kJ | 24 kcal | very low |
| 250 g serve | 60 kJ | 14 kcal | very low |
For example, if a 60 g serve contains 150 kJ, the food has about 250 kJ per 100 g, a low-density food, similar to fresh fruit, yoghurt, cooked rice and legumes. The food label calculator does this for any label.
150 kJ In Your Meals
How much of a meal does 150 kJ use up? It depends on your daily total and how you split it. Here it is as a share of typical meal budgets for three daily intakes:
| Meal budget | 6,300 kJ day | 8,700 kJ day | 10,500 kJ day |
|---|---|---|---|
| Breakfast (25%) | 10% | 7% | 6% |
| Lunch (30%) | 8% | 6% | 5% |
| Dinner (35%) | 7% | 5% | 4% |
| Snacks (10%) | 24% | 17% | 14% |
How Long Does It Take To Burn 150 kJ?
| Activity | 60 kg person | 70 kg person | 85 kg person |
|---|---|---|---|
| Walking, moderate (5 km/h) | 10 min | 8 min | 7 min |
| Jogging (8 km/h) | 4 min | 4 min | 3 min |
| Cycling, moderate | 5 min | 4 min | 4 min |
| Swimming, moderate laps | 6 min | 5 min | 4 min |
In practice that’s around 8 min on foot or 4 min jogging for an average 70 kg adult. Use the exercise kJ calculator for your own weight and activity.
150 kJ As Part Of Your Day
| Daily intake | Share used by 150 kJ |
|---|---|
| 5,021 kJ (1,200 kcal) weight-loss plan | 3% |
| 6,276 kJ (1,500 kcal) plan | 2.4% |
| 8,368 kJ (2,000 kcal) US/UK/EU reference | 1.8% |
| 8,700 kJ AU/NZ label reference | 1.7% |
| 10,460 kJ (2,500 kcal) active adult | 1.4% |
150 kJ In Other Energy Units
| Unit | Value |
|---|---|
| Kilojoules (kJ) | 150 kJ |
| Calories / kilocalories (kcal) | 35.85 kcal |
| Small calories (cal) | 35,851 cal |
| Joules (J) | 150,000 J |
| Megajoules (MJ) | 0.15 MJ |
| Watt-hours (Wh) | 41.7 Wh |
Nearby kJ To Calories Conversions
| Kilojoules | Calories |
|---|---|
| 50 kJ | 12.0 kcal |
| 100 kJ | 23.9 kcal |
| 150 kJ | 35.9 kcal |
| 200 kJ | 47.8 kcal |
| 250 kJ | 59.8 kcal |
| 289 kJ | 69.1 kcal |
FAQ
What is 150 kJ in calories?
35.85 Calories, that’s 150 divided by 4.184.
How many kcal is 150 kilojoules?
150 kJ is 35.85 kcal. A kilocalorie and a food Calorie are the same unit.
Is 150 kJ a lot?
Not really. At about 36 Calories it’s a light snack, about 1.7% of an 8,700 kJ day.
How long does it take to walk off 150 kJ?
8 min of steady walking, or 4 min of jogging, for an average 70 kg adult.
What if a food has 150 kJ per 100 g?
Then it has 35.9 kcal per 100 g, which is a very low-density food. A 30 g handful would provide about 45 kJ (11 kcal).