Calculator inputs
Example data table
| Food or drink | Servings | Sugar/serving (g) | Type | Sugar (g) |
|---|---|---|---|---|
| Cola | 1.0 | 39.0 | Added | 39.0 |
| Sweetened yogurt | 1.0 | 18.0 | Added | 18.0 |
| Apple | 1.0 | 19.0 | Natural | 19.0 |
| Total sugar | 76.0 | |||
Formula used
- Food sugar (g): servings × sugar per serving.
- Total sugar (g): sum of all row sugars + extra added sugar.
- Added sugar (g): sum of rows marked added + extra added sugar.
- Sugar energy (kcal): added sugar × 4.
- Percent energy from sugar: (sugar energy ÷ daily calories) × 100.
- 10% and 5% guides (g): (daily calories × 0.10 or 0.05) ÷ 4.
- Calorie estimate: Mifflin–St Jeor BMR × activity factor × goal factor.
- Teaspoons: grams ÷ 4.
How to use this calculator
- Choose units, then enter age, sex, height, and weight.
- Select activity level and your goal, or enter calories.
- Add foods and drinks. Use label values when possible.
- Mark each row as added or natural sugar.
- Optionally add extra added sugar from syrups or recipes.
- Press Calculate to see totals and guideline comparisons.
- Download CSV or PDF to save or share results.
FAQs
1) What is the difference between total and added sugar?
Total sugar includes naturally present sugars and added sugars. Added sugar is put in during processing or preparation, like soda, candy, syrups, or sweetened sauces. The calculator separates them using your row type selections.
2) Why do you show 10% and 5% targets?
Many public-health guides describe limits as a share of daily calories. This calculator converts those shares into grams, using 4 calories per gram of sugar. The 5% value is a stricter stretch target than 10%.
3) Can I trust the calorie estimate?
It is a reasonable estimate for planning, but it can be off for some people. If you know your typical calories from tracking, enter them directly. That will make the sugar limits more personalized.
4) Should fruit sugar count against my limit?
Whole fruit comes with water and fiber, which changes how it affects appetite and blood sugar response. Many guidelines focus more on added or free sugars. This tool still totals natural sugar so you can see your full picture.
5) How do I find sugar per serving?
Check the nutrition label for “Total Sugars” and “Added Sugars.” If only total is listed, use best judgment for the type. For homemade foods, use ingredient labels and estimate per portion.
6) What if I eat out and don’t know the sugar?
Use menu nutrition data when available. Otherwise, estimate using similar packaged foods or common databases. Even rough estimates help you spot the biggest sugar contributors and decide where to cut back.
7) Why might I exceed limits even with “healthy” foods?
Some “healthy” products can be sweetened heavily, like flavored yogurt, granola, smoothies, or specialty coffees. Marking type as added helps reveal these hidden sources and shows how quickly added sugar can accumulate.
8) Is this calculator medical advice?
No. It provides an educational estimate and compares it with common guideline-style thresholds. If you have diabetes, heart disease, or dietary restrictions, follow your clinician’s advice and use this tool only as a supporting aid.