How many carbs are in avocado?
Avocado has 5.8 g of total carbs per 1/2 medium (68 g) — about 1.2 g net carbs after 4.6 g of fiber. That's 8.5 g of carbs per 100 g, roughly 2% of the 275 g Daily Value.
USDA FoodData Central · raw · FDC 171705
Carbs by portion
| Portion | Total carbs | Net carbs | Fiber | Sugar | Calories |
|---|---|---|---|---|---|
| 1/2 medium (68 g) | 5.8 g | 1.2 g | 4.6 g | 0.5 g | 109 |
| 100 g | 8.5 g | 1.8 g | 6.7 g | 0.7 g | 160 |
| 1 oz (28 g) | 2.4 g | 0.5 g | 1.9 g | 0.2 g | 45 |
Net carbs = total carbs − fiber (the carbs that raise blood sugar, used in keto/low-carb tracking). Values computed from USDA per-100 g data (FDC 171705, SR Legacy). raw.
Avocado is the fruit that breaks the rules — and net carbs are why. A 1/2-medium serving (68 g) carries about 5.8 g of total carbohydrate, which already sounds low, but almost all of it is fiber. Roughly 4.6 g of that 5.8 g is fiber, leaving just about 1.2 g of net carbs — the number that actually matters if you’re counting. Per 100 g the totals are 8.5 g carbs, 6.7 g fiber, for under 2 g net. There’s barely any sugar in the mix either — about 0.5 g per half — so what little digestible carbohydrate exists is tiny. This is the standout low-net-carb fruit.
Why net carbs are almost nothing
Net carbs are total carbs minus fiber, and avocado has one of the largest total-to-net gaps of any food you can eat. About four-fifths of its carbohydrate is fiber — the indigestible part that passes through without being broken down into blood sugar. So while the label-style total reads ~5.8 g per half, the digestible, blood-sugar-relevant load is closer to 1 g. And unlike most fruit, there’s almost no sugar to begin with. The reason is simple: avocado isn’t really a starch-or-sugar food at all. It’s a fat-and-fiber food — about 10 g of mostly monounsaturated fat per half — which is why it behaves nothing like a banana or a mango on your plate or in your bloodstream.
The keto and low-carb verdict
Avocado is about as keto-friendly as a whole food gets — the opposite end of the spectrum from the sugary fruits. At ~1.2 g net carbs per half, you could eat an entire avocado (~2.5 g net) and barely register against a strict 20 g keto budget. That’s why it’s a staple of keto and low-carb cooking: it adds richness, fiber, potassium and healthy fat for essentially no usable carbohydrate, and the near-zero sugar means it won’t move blood sugar. Where most fruit is a carb to ration, avocado is a fat you can lean on.
Avocado isn’t just a carb-free win, though — people often want its macros in full, including protein. For that side of the picture, see protein in avocado. And for any packaged guacamole or avocado product, read the label’s own carb and fiber lines, since net carbs depend on both.
Frequently Asked Questions
How many carbs are in half an avocado?
About 5.8 g of total carbohydrate in a 1/2-medium serving (68 g), which is 8.5 g per 100 g (USDA FDC 171705). But that total is misleading on its own — most of it is fiber, so the number that counts for keto is tiny by comparison.
What are the net carbs in avocado?
Only about 1.2 g net carbs per half — total carbs (~5.8 g) minus the ~4.6 g of fiber. Avocado has one of the largest total-to-net gaps of any food: roughly four-fifths of its carbohydrate is fiber, which is exactly why it's the poster-child low-net-carb fruit.
Is avocado keto or low-carb?
Yes — avocado is about as keto-friendly as a whole food gets. At ~1.2 g net carbs per half, you could eat a whole avocado (~2.5 g net) and barely touch a 20 g keto budget. It's a staple of keto and low-carb eating precisely because it's a fat-and-fiber food, not a starch or sugar one.
How much fat and fiber is in avocado?
A half avocado has about 10 g of fat — mostly heart-healthy monounsaturated fat — and roughly 4.6 g of fiber (14.7 g fat and 6.7 g fiber per 100 g). That fat-plus-fiber profile, with almost no sugar, is the whole story: it's why avocado fills you up, why net carbs are so low, and why it sits so comfortably on keto.
Does avocado have less carbs than a banana?
Dramatically less in the form that matters. A medium banana is roughly 27 g of total carbs and ~24 g net — almost all digestible sugar and starch. A half avocado is ~5.8 g total and just ~1.2 g net. Both are technically fruit, but avocado eats like a fat, while a banana eats like a carbohydrate.
When was this data last verified?
2026-06-04, against USDA FoodData Central FDC 171705 (Avocados, raw, all commercial varieties; SR Legacy). We re-verify reference pages periodically and update when USDA revises the entry.
Whole-food values are USDA reference data, not a Labelgrade (that score is for branded packaged products). See our methodology and the macro calculator to turn this into a daily target.