Sugar: calories and nutrition facts
Calories in sugar per 100 g and per typical portion, from the MacroLab food catalog.
399kcal per 100 g
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To burn these 399 calories:
- 93minWalking (5 km/h)
- 39minRunning (8 km/h)
- 48minCycling (16–19 km/h)
- 54minSwimming
Times use the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.
Calories per portion
Common portions from the MacroLab catalog, next to the 100 g reference.
| Portion | kcal |
|---|---|
| 100 g | 399 |
| 1 tablespoon (15 g) | 60 |
| 1 teaspoon (5 g) | 20 |
Can sugar make you gain weight?
At 399 kcal per 100 g, this is a food with medium energy density: about 25 g gives 100 kcal.
One tablespoon (15 g) has only 60 kcal, which is easy to fit into most days.
No single food makes you gain weight. What matters is your total calories over days and weeks compared with what you burn.
Sugar vs other foods in “Sweets and snacks”
Its calories are close to the average food in “Sweets and snacks” (389 kcal per 100 g).
| Per 100 g | This food | Group average |
|---|---|---|
| Energy | 399 kcal | 389 kcal |
Related foods
Frequently asked questions
- How many calories are in 100 g of sugar?
- 100 g has 399 kcal. That means about 25 g for every 100 kcal.
- How many calories are in one tablespoon of sugar?
- One tablespoon (15 g) has 60 kcal.
Log sugar with a photo in MacroLab
Snap your plate and MacroLab estimates calories and macros, then keeps your daily targets up to date.
Data from the MacroLab food catalog, updated September 26, 2026. Values vary by variety and brand; check the label of the product you buy.