Enter the grams, kilojoules, and energy per gram into the calculator to determine the missing variable.
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Kj to Grams Formula
The following formula is used to calculate the grams for a given amount of kilojoules and energy per gram.
g = \frac{Kj}{E}Variables:
- g is the grams
- Kj is the kilojoules
- E is the energy per gram in kilojoules per gram
To calculate the grams, divide the kilojoules by the energy per gram.
| Kilojoules (kJ) | Grams (g) |
|---|---|
| 10 | 0.588 |
| 20 | 1.176 |
| 30 | 1.764 |
| 50 | 2.941 |
| 75 | 4.412 |
| 100 | 5.882 |
| 120 | 7.059 |
| 150 | 8.824 |
| 200 | 11.765 |
| 250 | 14.706 |
| 300 | 17.647 |
| 350 | 20.588 |
| 400 | 23.529 |
| 500 | 29.412 |
| 600 | 35.294 |
| 750 | 44.118 |
| 1000 | 58.824 |
| 1500 | 88.235 |
| 2000 | 117.647 |
| 2500 | 147.059 |
| *Assumes energy per gram = 17.00 kJ/g (typical for carbohydrate/protein). Formula: grams = kilojoules ÷ (kJ/g). | |
What is Kj to Grams?
Kj to grams is a conversion that allows you to determine the mass of a substance based on its energy content and the energy per gram. This is particularly useful in nutritional contexts where the energy content of food is given in kilojoules, and you need to find out the mass of the food to meet a specific energy requirement.
How to Calculate Kj to Grams?
The following steps outline how to calculate Kj to grams.
- First, determine the kilojoules (Kj).
- Next, determine the energy per gram (E).
- Finally, calculate the grams using the formula g = Kj / E.
- After inserting the values and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
Kilojoules (Kj) = 500
Energy per gram (E) = 2.5 Kj/g