This calculator tells you how many calories are in a given amount of kiwi, whether you measure in grams or ounces. It uses standard green and gold kiwifruit energy-density values and also lets you enter a custom kcal-per-100g figure for specific products or recipes.
The reverse mode works the other way: enter a calorie target and see how many grams or ounces of kiwi that corresponds to, plus a rough count of medium fruits. This makes the tool useful for meal planning, portion control, and fitting a low-calorie snack into a daily budget.
You can also use the one-touch presets for a medium kiwi, a large kiwi, or a cup of slices, then adjust with your actual scale weight. A breakdown shown with each result reveals the density and the math behind the number, so you can trust the outcome whether you are tracking macros, planning a diet, or simply curious.
🥝 Kiwi Calories Per Gram
Quick Start
Begin by choosing a calculation mode. The default Weight → Calories mode takes the amount of kiwi you plan to eat and returns the energy it provides. Switch to Calories → Weight when you have a target calorie number and want to know how much fruit that allows. Next, select the kiwi type: green, gold, or custom. Green uses 61 kcal per 100 g and gold uses 63 kcal per 100 g. If your product has a different label value, choose Custom value and enter its kilocalories per 100 g.
How the Calculation Works
Kiwifruit is roughly 80% water, which is why its energy density is low compared with nuts, dried fruit, or grains. Green raw kiwifruit contains about 61 kcal per 100 g, or 0.61 kcal per gram. Gold kiwifruit is a little sweeter and typically comes in around 63 kcal per 100 g, or 0.63 kcal per gram.
The main formula is simple: Calories = weight in grams × density in kcal/g. Since the calculator works with grams internally, ounces are first converted using 1 oz = 28.3495 g. The reverse mode uses grams needed = target calories ÷ density.
Because moisture and sugar content vary with harvest, storage, and ripeness, these values are reasonable averages rather than constants. For tracking blood sugar impact as well as calories, see the kiwi glycemic load calculator.
Worked Examples
Example 1 — one medium green kiwi. Typical weight 69 g. Calories = 69 × 0.61 = 42 kcal. This matches the familiar value of roughly 40–45 kcal per medium kiwi.
Example 2 — a 100 kcal gold kiwi snack. Gold density = 0.63 kcal/g. Weight needed = 100 ÷ 0.63 = 159 g, or 5.6 oz. That is about two medium gold kiwis, or one large fruit plus a bit more.
Example 3 — a fruit salad using 1 cup of sliced green kiwi. One cup of sliced kiwi weighs about 166 g. Calories = 166 × 0.61 = 101 kcal. Adding it to a meal plan adds about 100 kcal plus fiber and vitamin C.
Reference Data and Standard Values
The table below summarizes common values used by the calculator. Use them as starting points; precise numbers depend on the specific fruit and how it is weighed.
| Item | Energy density | Typical weight | Calories |
|---|---|---|---|
| Green kiwi, raw | 61 kcal/100g (0.61 kcal/g) | — | — |
| Gold kiwi, raw | 63 kcal/100g (0.63 kcal/g) | — | — |
| 1 medium green kiwi | 0.61 kcal/g | 69 g | 42 kcal |
| 1 large green kiwi | 0.61 kcal/g | 91 g | 56 kcal |
| 1 cup sliced green kiwi | 0.61 kcal/g | 166 g | 101 kcal |
| 1 oz edible flesh | 0.61 kcal/g | 28.35 g | 17 kcal |
Tips and Common Mistakes
Weigh the flesh, not the whole fruit. Nutrition databases report edible portion by default. If you weigh a whole unpeeled kiwi, you may overestimate by roughly 10% because the skin is not included in the calorie value. If you eat the skin, the extra fiber and vitamin C are beneficial, but the calorie difference is small.
Check whether a food label is per 100 g or per serving. Some packaged kiwi snacks, dried kiwi, or kiwi puree list energy per portion. Dried kiwi is much more calorie-dense because water is removed; do not apply the fresh-fruit density unless the product label says otherwise.
Do not confuse kilocalories with kilojoules. Food labels outside the United States often use kJ. To convert kJ to kcal, divide by 4.184. For example, 250 kJ ÷ 4.184 ≈ 60 kcal.
Frequently Asked Questions
Does the calculator work for both green and gold kiwi?
Yes. Green uses 61 kcal/100g and gold uses 63 kcal/100g. These are population averages; actual fruit may differ slightly. If you have precise label data, choose custom.
Is kiwi high in calories?
No. Fresh kiwi is about 0.6 kcal per gram, which is moderate for fruit. A medium fruit provides roughly 42 calories, far less than a handful of nuts or a granola bar, while supplying vitamin C, vitamin K, fiber, and potassium.
Should I count the skin?
Most calorie databases measure peeled flesh. If you eat the skin, you can either increase the weight slightly or ignore the difference for casual tracking. The skin adds fiber and antioxidants but very few extra calories.
Can I use this tool for dried kiwi?
Only with the custom option and the product’s actual label value. Dried kiwi is much more energy-dense because dehydration concentrates sugars; 100 g of dried kiwi can contain three to four times the calories of fresh.
Additional Resources
For up-to-date nutrient profiles, consult the USDA FoodData Central and the Wikipedia article on kiwifruit. These sources provide full macronutrient and micronutrient data for fresh and processed kiwi products.