Share of Your Daily Calories
Divide the food energy by the daily target and multiply by 100. Labels usually quote per 100 g, so scale it to the portion you actually eat before entering it.
Your numbers
Percentage
25%
Remaining
1,500kcal
Formula
Percentage = Food calories ÷ Calories × 100
A negative remainder means that single item has already used up the whole day.
What to enter
| Input | Default | Accepted range |
|---|---|---|
| Food calories (kcal)The calories in what you ate; take it from a label or an app. | 500 | 0 and up |
| Calories (kcal)Energy, in kilocalories. | 2,000 | 0 and up |
Step by step
Quick reference table
Results when only Food calories (kcal) changes and everything else stays put.
| Food calories (kcal) | Percentage (%) | Remaining (kcal) |
|---|---|---|
| 250 | 12.5 | 1,750 |
| 375 | 18.8 | 1,625 |
| 500 | 25 | 1,500 |
| 750 | 37.5 | 1,250 |
| 1,000 | 50 | 1,000 |
What each result means
| Result | At default values |
|---|---|
| Percentage (%)A share expressed out of 100. | 25 |
| Remaining (kcal)How much is still left to go; zero means the goal is met. | 1,500 |
Common mistakes
A negative remainder means that single item has already used up the whole day.
Glossary
- Food calories
- The calories in what you ate; take it from a label or an app.
- Calories
- Energy, in kilocalories.
- Percentage
- A share expressed out of 100.
- Remaining
- How much is still left to go; zero means the goal is met.
Frequently asked questions
Q. How is Share of Your Daily Calories calculated?
Percentage = Food calories ÷ Calories × 100 — Divide the food energy by the daily target and multiply by 100. Labels usually quote per 100 g, so scale it to the portion you actually eat before entering it.
Q. Can you walk through an example?
With Food calories 500kcal, Calories 2,000kcal, the answer is Percentage 25%.
Q. What do I need to enter?
Enter Food calories, Calories. The result recalculates as you type, and an empty box counts as zero.
Q. How much does the answer move if I change a number?
Changing only Food calories (kcal) moves the answer to Food calories (kcal) 250 → Percentage (%) 12.5 and Food calories (kcal) 1,000 → Percentage (%) 50. The table below lays out five steps.
Q. How are the numbers rounded?
Money is shown to the nearest whole unit, percentages to one decimal place and everything else to two. What you see is rounded; the calculation itself carries the unrounded value forward.
Q. Anything to watch out for?
A negative remainder means that single item has already used up the whole day.
Related calculators
These calculators help you understand health figures; they do not replace diagnosis or prescription. See a clinician if you have symptoms.