Fresh peaches are one of summer’s sweetest fruits, but they also bring a meaningful amount of carbohydrate. If you’re tracking macros, managing blood sugar, or following a low-carb plan, this Peach Carbs Calculator gives you an instant read on total carbs, net carbs, fiber, sugar, and calories for any peach portion you actually eat.
All values are based on USDA nutrition data for raw peaches. A 100-gram portion contains about 9.5 g of carbohydrates, 1.5 g of fiber, and 8.4 g of naturally occurring sugar. Because a medium peach weighs around 150 grams, a single piece of fruit can add roughly 14 g of carbs to your day — more than you might think. Enter your portion in grams, ounces, whole peaches, or cup slices and see the full nutrient picture in seconds.
🍑 Peach Carb Counter
Estimate carbs, net carbs, fiber, sugar, and calories in fresh peaches.
📊 Results
How to Use This Calculator
Start by entering how much peach you want to evaluate. Use the amount box next to the unit dropdown, then choose a unit: grams, ounces, medium peach, large peach, or cup sliced. The preset buttons under the title let you instantly load common portions like 100 g or one cup, but you can type any number you like — 0.75 of a medium peach, 250 g of sliced fruit, 5 oz, whatever matches your meal.
After you hit Calculate Carbs, the results panel shows five numbers: total carbohydrate, net carbohydrate (total carbs minus fiber), fiber, sugar, and calories. Net carbs is the value many low-carb and keto dieters watch because fiber is not digested like other carbs. If you prefer a compact view, uncheck the “Show full nutrition breakdown” box to hide the detailed stat cards.
How the Carb Count Is Calculated
This calculator uses official USDA nutrient values for raw peaches. Per 100 grams, raw peach contains approximately 9.54 g of total carbohydrate, 1.50 g of fiber, 8.39 g of naturally occurring sugars, and 39 kcal of energy. We first convert your chosen portion into grams, then multiply by these factors.
The formulas are simple:
- Total carbs = portion in grams × 0.0954
- Fiber = portion in grams × 0.015
- Sugar = portion in grams × 0.0839
- Net carbs = total carbs − fiber
- Calories = portion in grams × 0.39
The conversion weights used are 150 g for a medium peach, 175 g for a large peach, 154 g for one cup of sliced fruit, and 28.3495 g per ounce. These come from typical edible-portion weights compiled by the USDA. If you’re following stricter keto or diabetic meal planning, you may want to verify the exact weight of your piece of fruit. The USDA Food Data Central database is a good reference: USDA FoodData Central — Peaches, raw.
Reference: Peach Nutrition by Portion
The table below shows approximate values for common peach portions. Values are rounded to one decimal place, so they may differ slightly from the calculator’s live output.
| Portion | Weight | Carbs | Fiber | Net Carbs | Sugar | Calories |
|---|---|---|---|---|---|---|
| 100 g | 100 g | 9.5 g | 1.5 g | 8.0 g | 8.4 g | 39 kcal |
| 1 small peach | 130 g | 12.4 g | 2.0 g | 10.4 g | 10.9 g | 51 kcal |
| 1 medium peach | 150 g | 14.3 g | 2.3 g | 12.0 g | 12.6 g | 59 kcal |
| 1 large peach | 175 g | 16.7 g | 2.6 g | 14.1 g | 14.7 g | 68 kcal |
| 1 cup sliced | 154 g | 14.7 g | 2.3 g | 12.4 g | 12.9 g | 60 kcal |
Worked Examples
Example 1: One medium peach. A 150 g peach contains 150 × 0.0954 = 14.3 g of total carbs. Subtract 2.3 g of fiber to get about 12.0 g of net carbs. It also supplies roughly 12.6 g of natural sugar and 59 calories.
Example 2: 200 g of sliced peaches. Multiply 200 × 0.0954 = 19.1 g total carbs. Fiber is 200 × 0.015 = 3.0 g, so net carbs are about 16.1 g. Sugar comes to 200 × 0.0839 = 16.8 g, and calories are about 78 kcal.
Example 3: 3 ounces of peach. Three ounces equals 85.05 g. Total carbs are about 8.1 g, net carbs are about 6.8 g, and calories are about 33 kcal — useful if you are weighing out a small snack on a low-carb day.
Low-Carb and Keto Tips
Peaches are delicious and nutritious, but they are not a “free” food on a low-carb or keto diet. One medium peach has about 12 g of net carbs, which can consume a large share of a 20–50 g daily net-carb budget. That does not mean you need to avoid peaches entirely — it means portion control matters.
- Limit intake to half a small peach or roughly 75–100 g if you are staying under 30 g of net carbs per day.
- Pair peaches with protein or fat, such as Greek yogurt, cottage cheese, or a few almonds, to slow sugar absorption and make the snack more satisfying.
- Choose fresh or unsweetened frozen peaches. Canned peaches packed in heavy syrup can have more than double the sugar per serving.
- Track the fruit as part of your total daily carbohydrate budget instead of treating it as an unlimited extra.
Frequently Asked Questions
Are canned or dried peaches the same nutritionally? No. Canned peaches in heavy syrup add significant sugar; drained canned peaches in water or light juice are closer to fresh but still slightly lower in vitamin C. Dried peaches are much more concentrated — about 64 g of carbs per 100 g — because water is removed, so portions need to be much smaller.
Does removing the skin change the carb count? The skin contributes only a small amount of fiber and negligible carbohydrate. Peeling a peach changes the numbers by less than 1 g of carbs per 100 g, so you can enter the same weight whether peeled or unpeeled.
Why is net carbs lower than total carbs? Fiber is a carbohydrate, but it is not digested into glucose the way starch and sugar are. Most low-carb and keto eaters subtract fiber from total carbs to estimate carbs that affect blood sugar. This calculator does that automatically.
How do peaches compare to other fruits? Peaches are moderate among fruits. They contain fewer net carbs than bananas or grapes but more than berries. For another fruit comparison, see our honeydew carb calculator or the fruit calories per handful calculator.
If you track carbs regularly, remember that portion weight is the main variable. A large peach from a farmers market can easily weigh more than 200 g, adding about 19 g total carbs. Weighing fruit is the single best way to keep counts accurate.