How much sugar is in strawberries?
Strawberries has 8.1 g of sugar per 1 cup sliced (166 g) — about 1.9 teaspoons. That's 4.9 g per 100 g, and it's all naturally occurring — whole strawberries has no added sugar.
USDA FoodData Central · raw · FDC 167762
Sugar by portion
| Portion | Sugar | ≈ teaspoons | Total carbs | Calories |
|---|---|---|---|---|
| 1 cup sliced (166 g) | 8.1 g | 1.9 tsp | 12.8 g | 53 |
| 100 g | 4.9 g | 1.2 tsp | 7.7 g | 32 |
| 1 oz (28 g) | 1.4 g | 0.3 tsp | 2.2 g | 9 |
Teaspoon figure converts grams of sugar at ~4.2 g per level teaspoon, for scale only. This is the total sugar naturally present — whole strawberries carries no added sugar. Values from USDA per-100 g data (FDC 167762, SR Legacy). raw.
A cup of sliced strawberries has just about 8.1 g of sugar — roughly 1.9 teaspoons — for around 53 calories. At 4.9 g per 100 g, that’s one of the lowest sugar densities of any common fruit, which is why strawberries are the berry that low-sugar, keto, and diabetic-friendly eaters reach for first. And all of it is naturally occurring: fresh strawberries have no added sugar whatsoever — what little sweetness they carry comes packaged with water, fiber, and a full day’s worth of vitamin C.
Natural sugar, and not much of it
The teaspoon figure is there for scale, and the scale is genuinely small: a whole cup of strawberries carries less sugar than a single tablespoon of honey. That sugar is also all natural — there’s nothing on the “added sugar” line of a plain strawberry, because the fruit grew its own. The only place strawberries pick up extra sugar is in processing: frozen-in-syrup, jam, sweetened dried strawberries, and strawberry-flavored products can multiply the number several times over. With the fresh fruit, though, you’re looking at sugar diluted across a lot of water and slowed by about 3 g of fiber per cup.
Why they’re the low-sugar pick
Strawberries earn their reputation honestly. Compared with blueberries — nearly double the sugar per cup — or a cup of grapes, strawberries deliver the sweet-fruit experience for a fraction of the sugar and calories. After fiber, a cup nets out to only about 6 g of net carbs, which is what makes them so easy to fit into a low-carb day without much arithmetic. None of this is reason to fear the other fruits — it’s just that if your goal is maximum flavor for minimum sugar, strawberries win the comparison outright. This is general guidance, not a medical prescription, but it’s hard to find a friendlier fruit.
For the macro picture beyond sugar, see protein in strawberries — and on any packaged berry product, read the label’s own added sugar line, since that’s where syrup and sweeteners show up.
Frequently Asked Questions
How much sugar is in strawberries?
About 8.1 g of sugar in a 1-cup sliced serving (166 g), which is 4.9 g per 100 g (USDA FDC 167762). That's one of the lowest sugar densities of any common fruit, and it's all naturally occurring — strawberries have no added sugar.
How many teaspoons of sugar is that?
Roughly 1.9 teaspoons per cup, using 4.2 g of sugar per level teaspoon. Because strawberries are mostly water and fiber, that sugar is very diffuse — a whole cup carries less sugar than a single tablespoon of honey.
Is the sugar in strawberries natural or added?
Entirely natural. Fresh strawberries contain only the fruit sugar they grew with and zero added sugar. The catch is in processed forms — frozen-in-syrup, jam, or sweetened dried strawberries can carry several times the sugar, so check the label on anything that isn't a plain fresh berry.
Are strawberries good for a low-sugar, keto, or diabetic diet?
They're often the go-to fruit for exactly these plans. At about 8 g of total sugar and roughly 6 g of net carbs per cup (after ~3 g fiber), strawberries are one of the easiest fruits to fit into a low-carb or diabetic-friendly day. Individual needs vary, so this is general information rather than medical advice — but as fruit goes, strawberries are about as gentle as it gets.
How much sugar is in a whole cup versus a few berries?
A full cup of sliced strawberries (166 g) is about 8.1 g of sugar; a small handful of whole berries might be 3–4 g. Sliced packs a little more per cup than whole because the pieces settle with less air between them, but either way the sugar stays low.
When was this data last verified?
2026-06-04, against USDA FoodData Central FDC 167762 (Strawberries, raw; SR Legacy). We re-verify reference pages periodically and update when USDA revises its underlying data.
Whole-food values are USDA reference data, not a Labelgrade (that score is for branded packaged products, where we penalize added sugar). See our methodology and the added-sugar calculator.