Wondering how many calories are in a handful of kiwi slices? This calculator gives you a fast, accurate answer based on the number of slices you plan to eat, the size of the kiwi, and how finely you slice it. Instead of guessing, you get per-slice calories, total calories, carbohydrates, sugar, fiber, vitamin C, and potassium in one view.
Kiwi is a nutrient-dense fruit: a medium fruit provides more vitamin C than an orange while staying relatively low in calories. Because the same kiwi can be cut into 6, 8, or 12 slices, the calories per slice change with your slicing style, so this tool lets you account for that. Use it for meal planning, calorie tracking, or simply to understand how a fruit snack fits into your daily goals.
🥝 Kiwi Calories Per Slice Calculator
Estimate calories and key nutrients in kiwi slices using USDA data for raw green kiwifruit.
Quick Start
Using the calculator takes only a few seconds. Enter the number of kiwi slices you plan to eat — this is the portion you actually want nutrition information for. Then pick a kiwi size from the dropdown: Small (50 g of edible flesh), Medium (75 g), or Large (100 g). If your fruit doesn't match any of these, select Custom weight and type the exact edible weight in grams.
Next, set how many slices you typically cut from one whole kiwi. Eight rounds is the most common for a medium fruit, but six thick slices or twelve thin ones are perfectly normal. Because the calories per slice depend directly on this number, changing it automatically changes the per-slice result. Click Calculate to see per-slice calories, total calories, edible weight, carbohydrates, sugars, fiber, vitamin C, and potassium. Use the preset buttons to enter common portions quickly, or Reset to start over.
The Math Behind It
The calculation is simple and follows three steps. First, find the weight of one slice by dividing the whole edible weight by the number of slices per fruit. Second, multiply that slice weight by the number of slices eaten to get the total portion weight. Third, multiply the portion weight by per-gram nutrient values derived from the USDA FoodData Central database for raw green kiwifruit (fdc.nal.usda.gov):
- Calories: 0.61 kcal/g (61 kcal per 100 g)
- Carbohydrates: 0.1466 g/g (14.66 g per 100 g)
- Sugars: 0.0899 g/g (8.99 g per 100 g)
- Fiber: 0.03 g/g (3 g per 100 g)
- Vitamin C: 0.927 mg/g (92.7 mg per 100 g)
- Potassium: 3.12 mg/g (312 mg per 100 g)
For example, a 75 g kiwi cut into 8 slices gives a slice weight of 75 ÷ 8 = 9.375 g, so each slice contributes about 9.375 × 0.61 ≈ 5.7 kcal. Because the relationship between weight and calories is linear, the same rates apply whether you eat one slice or twelve.
Worked Examples
Standard Values for Common Kiwi Sizes
The table below shows typical per-slice values for common sizes and slicing styles. Actual numbers vary a little with ripeness and variety, but these give a useful planning estimate.
| Size | Edible weight | Typical slices | Weight per slice | kcal per slice |
|---|---|---|---|---|
| Small | 50 g | 6 | 8.3 g | 5.1 kcal |
| Medium | 75 g | 8 | 9.4 g | 5.7 kcal |
| Large | 100 g | 10 | 10.0 g | 6.1 kcal |
Precision Notes & Best Practices
Ripeness is the biggest natural variable. As a kiwi ripens, starches convert to sugars, which can raise the sugar reading slightly, while the total calorie change usually stays small. Cultivar and growing conditions also matter: golden (SunGold) kiwi is sweeter and runs closer to 63 kcal per 100 g, whereas green Hayward kiwi sits near 61 kcal per 100 g.
For the most accurate results, weigh the peeled flesh and use the Custom weight option. Be consistent with your slicing — a round slice cut across the short axis is the conventional unit, but the slices-per-fruit field lets you adapt to wedges or halves as long as you count honestly. Finally, track the whole portion at once rather than logging one slice and forgetting the extra handful you grabbed later. For more background on the fruit itself, the Wikipedia article on kiwifruit is a handy reference.
Frequently Asked Questions
How accurate are these calorie values? They are based on USDA average data for raw green kiwifruit, so they should be within a few percent of typical fruits. The main source of variation is individual fruit size, not the nutrient density.
Does the skin change the numbers? All values here describe the edible flesh only. The fuzzy brown skin is technically edible and adds a little extra fiber, but the amount is small and rarely worth tracking.
Why does slice thickness matter? Per gram of fruit, calories never change — a thin slice simply weighs less, so it carries fewer calories. The calculator works from weight rather than slice shape, which is exactly why the slices-per-fruit setting exists.
Is golden kiwi higher in calories than green kiwi? Slightly. Golden varieties contain more sugar and run about 63 kcal per 100 g versus 61 kcal for green. For a single serving the difference is minor, but it adds up if you eat kiwi daily.