How much sugar is in orange?
Orange has 12.3 g of sugar per 1 medium (131 g) — about 2.9 teaspoons. That's 9.4 g per 100 g, and it's all naturally occurring — whole orange has no added sugar.
USDA FoodData Central · raw · FDC 169097
Sugar by portion
| Portion | Sugar | ≈ teaspoons | Total carbs | Calories |
|---|---|---|---|---|
| 1 medium (131 g) | 12.3 g | 2.9 tsp | 15.5 g | 62 |
| 100 g | 9.4 g | 2.2 tsp | 11.8 g | 47 |
| 1 oz (28 g) | 2.7 g | 0.6 tsp | 3.3 g | 13 |
Teaspoon figure converts grams of sugar at ~4.2 g per level teaspoon, for scale only. This is the total sugar naturally present — whole orange carries no added sugar. Values from USDA per-100 g data (FDC 169097, SR Legacy). raw.
A medium orange has about 12.3 g of sugar — roughly 2.9 teaspoons — for around 62 calories. That’s 9.4 g per 100 g, and every gram of it is naturally occurring fruit sugar. A whole orange has no added sugar at all; what you’re eating is the fructose and sucrose the fruit grew with, packaged together with about 3 g of fiber, plenty of water, and more than a full day’s vitamin C.
Natural sugar, not added sugar
The teaspoon number is useful for scale, but it can mislead if you stop there. Those 2.9 teaspoons aren’t loose sugar — they arrive bound up in the structure of the fruit, slowed by fiber and diluted by water, which is exactly why a whole orange behaves nothing like a spoonful of sugar in your coffee. This is the honest distinction nutrition labels are getting at when they separate total sugar from added sugar: an orange’s sugar is 100% natural, so there’s nothing on the “added” line. The food the orange most often gets compared to — orange juice — is where the trouble starts, because juicing strips the fiber and concentrates the sugar of several oranges into one glass.
A balanced way to read the number
At 15.5 g of total carbs, an orange sits in the middle of the fruit range: more sugar than strawberries per serving, less than a cup of grapes. For most people that’s a perfectly sensible snack — the sugar comes with vitamin C, fiber, folate, and potassium for only ~62 calories, which is a genuinely nutrient-dense trade. If you’re tracking carbs closely for keto or diabetes, an orange is something to count, not necessarily avoid: the fiber blunts the rise compared with juice, and portion is the lever that matters most. Compare, don’t scare — a whole orange is real food, and its sugar is the kind that comes with benefits attached.
For the other side of the macro picture, see protein in orange — and when you’re choosing a packaged juice or fruit product, read the label’s own added sugar line, which is where the meaningful number lives.
Frequently Asked Questions
How much sugar is in an orange?
About 12.3 g of sugar in one medium orange (131 g), which is 9.4 g per 100 g (USDA FDC 169097). All of it is naturally occurring fruit sugar — a whole orange has no added sugar.
How many teaspoons of sugar is that?
Roughly 2.9 teaspoons, using the standard 4.2 g of sugar per level teaspoon. That figure is just for scale: the sugar in an orange comes wrapped in about 3 g of fiber and a lot of water, so it behaves very differently from 2.9 teaspoons stirred into a drink.
Is the sugar in oranges natural or added?
Entirely natural. A whole orange contains only the fructose, glucose, and sucrose the fruit grew with — there is no added sugar. That's the key difference from orange juice or candy: the sugar arrives alongside fiber, vitamin C, and water, not on its own.
Are oranges OK on a low-carb or diabetic diet?
It depends on your plan and your numbers. A medium orange is about 15.5 g of total carbs, most of it natural sugar, so it's heavier than a berry but lighter than juice. The fiber slows absorption compared with juice, and many people fit a whole orange into a balanced or diabetic-friendly day — but on strict keto it's a meaningful chunk of a 20–50 g budget. This is general information, not medical advice.
Is a whole orange better than orange juice for sugar?
Yes, by a wide margin. A medium orange gives you ~12 g of sugar with its fiber intact; a glass of juice can pack the sugar of several oranges with the fiber stripped out, so it hits faster and is easier to overdo. If you're watching sugar, eat the orange rather than drink it.
When was this data last verified?
2026-06-04, against USDA FoodData Central FDC 169097 (Oranges, raw, all commercial varieties; SR Legacy). We re-verify reference pages periodically and update when the underlying USDA entry changes.
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.