Kilojoules to Calories Converter
Exercise times are estimates for a 70 kg adult.
1,240 kilojoules = 296.37 kcal, or about 296 Calories. The working is a single division: 1,240 ÷ 4.184 = 296.37.
A precise figure like 1,240 kJ usually comes straight from a nutrition panel, the “per serve” energy of a snack, a ready meal or a drink. At 296.4 kcal it is a meal-sized serve.
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How To Convert 1,240 kJ To Calories
- Write down the kilojoules, here, 1,240.
- Divide by the conversion factor 4.184.
- The result, 296.37 kcal, is the same as 296.37 food Calories.
Shortcut: 1,240 × 0.239 = 296.4 kcal. Multiplying by 0.239 is the same as dividing by 4.184 to three decimal places.
Is 1,240 kJ A Lot?
1,240 kJ (296 Calories) is a typical meal for many adults. If you split an 8,700 kJ day across three meals and a snack, each main meal averages roughly 2,000-2,600 kJ.
- Sirloin steak, grilled lean (150 g), 1,255 kJ
- Cheeseburger, regular (1 burger), 1,255 kJ
- Fruit & yoghurt smoothie (450 ml), 1,255 kJ
- Hot dog with bun (1 hot dog), 1,213 kJ
- About 3 × apple, medium (397 kJ each)
- About 3 × banana, medium (439 kJ each)
- About 4 × egg, large (301 kJ each)
Values are typical, the food kJ chart lists 120+ foods.
1,240 kJ On A Food Label
A label line that reads “1,240 kJ per serve” only tells half the story. Divide by the serve size and you get the energy density, how much energy is packed into every 100 g of the food.
| Serving size | kJ per 100 g | kcal per 100 g | Energy density |
|---|---|---|---|
| 40 g serve | 3,100 kJ | 741 kcal | high |
| 60 g serve | 2,067 kJ | 494 kcal | high |
| 100 g serve | 1,240 kJ | 296 kcal | medium |
| 150 g serve | 827 kJ | 198 kcal | medium |
| 250 g serve | 496 kJ | 119 kcal | low |
For example, if a 60 g serve contains 1,240 kJ, the food has about 2,067 kJ per 100 g, a high-density food, similar to biscuits, chips, chocolate, nuts and oils. Scale any pack to your portion with the food label calculator.
1,240 kJ In Your Meals
Here’s 1,240 kJ measured against meal-sized budgets for a lighter, average and more active day:
| Meal budget | 6,300 kJ day | 8,700 kJ day | 10,500 kJ day |
|---|---|---|---|
| Breakfast (25%) | 79% | 57% | 47% |
| Lunch (30%) | 66% | 48% | 39% |
| Dinner (35%) | 56% | 41% | 34% |
| Snacks (10%) | 197% | 143% | 118% |
How Long Does It Take To Burn 1,240 kJ?
| Activity | 60 kg person | 70 kg person | 85 kg person |
|---|---|---|---|
| Walking, moderate (5 km/h) | 1 h 21 min | 1 h 9 min | 57 min |
| Jogging (8 km/h) | 34 min | 29 min | 24 min |
| Cycling, moderate | 42 min | 36 min | 29 min |
| Swimming, moderate laps | 49 min | 42 min | 34 min |
At 70 kg you’d use up 1,240 kJ in about 1 h 9 min of walking: or 29 min if you jog. Check other activities in the exercise kJ calculator.
1,240 kJ As Part Of Your Day
| Daily intake | Share used by 1,240 kJ |
|---|---|
| 5,021 kJ (1,200 kcal) weight-loss plan | 24.7% |
| 6,276 kJ (1,500 kcal) plan | 19.8% |
| 8,368 kJ (2,000 kcal) US/UK/EU reference | 14.8% |
| 8,700 kJ AU/NZ label reference | 14.3% |
| 10,460 kJ (2,500 kcal) active adult | 11.9% |
1,240 kJ In Other Energy Units
| Unit | Value |
|---|---|
| Kilojoules (kJ) | 1,240 kJ |
| Calories / kilocalories (kcal) | 296.37 kcal |
| Small calories (cal) | 296,367 cal |
| Joules (J) | 1,240,000 J |
| Megajoules (MJ) | 1.24 MJ |
| Watt-hours (Wh) | 344.4 Wh |
Nearby kJ To Calories Conversions
| Kilojoules | Calories |
|---|---|
| 1,160 kJ | 277.2 kcal |
| 1,180 kJ | 282.0 kcal |
| 1,200 kJ | 286.8 kcal |
| 1,240 kJ | 296.4 kcal |
| 1,250 kJ | 298.8 kcal |
| 1,260 kJ | 301.1 kcal |
| 1,300 kJ | 310.7 kcal |
FAQ
How many Calories are in 1,240 kJ?
296.37 Calories, that’s 1,240 divided by 4.184.
How many kcal is 1,240 kilojoules?
1,240 kJ is 296.37 kcal. A kilocalorie and a food Calorie are the same unit.
Is 1,240 kJ a lot?
It’s a normal meal-sized amount, about 14% of an 8,700 kJ day.
How long does it take to walk off 1,240 kJ?
Roughly 1 h 9 min on foot for a 70 kg person; an 85 kg person needs about 57 min.
What if a food has 1,240 kJ per 100 g?
Then it has 296.4 kcal per 100 g, which is a medium-density food. A 30 g handful would provide about 372 kJ (89 kcal).