Wondering how many calories are in that handful of kiwi slices? Our Kiwi Calories Per Ounce Calculator gives you a quick, accurate estimate based on the weight of kiwi you plan to eat. Whether you're tracking daily intake, planning a fruit salad, or just curious about portion sizes, this tool converts your kiwi weight into calories using the standard USDA value of about 17.5 calories per ounce.
Simply enter the weight of kiwi (in ounces or grams) and choose your preferred unit. The calculator instantly shows the total calories, plus a breakdown per 100 grams and per typical serving. You can also adjust for the edible portion — since the skin is usually removed, we include a toggle to account for that. Perfect for calorie counters, diet planners, and anyone who loves this tangy green fruit.
🥝 Kiwi Calorie Calculator
How to Use This Tool
Using the calculator is straightforward. Enter the weight of kiwi you have — either in ounces or grams — and select the appropriate unit. If you typically eat kiwi with the skin on (some people do for extra fiber), choose the "With skin" option; otherwise, keep the default "Peeled" setting. The calculator then applies the standard edible portion factor and computes the total calories.
You can also use the quick-fill buttons to instantly load common portion sizes: one medium kiwi (about 3.5 oz), a small kiwi (2.5 oz), or two medium kiwis (7 oz). This is handy when you're estimating without a scale.
How It Works
The calorie value is based on the USDA FoodData Central entry for raw kiwi fruit. According to USDA data, raw kiwi provides approximately 61 calories per 100 grams. Since 1 ounce equals 28.3495 grams, this translates to about 17.3 calories per ounce. Our calculator uses a rounded figure of 17.5 kcal/oz for simplicity, which is within 1% of the official value.
When you select "Peeled", we assume the edible portion is 100% of the weight you entered (since you're weighing the peeled fruit). If you choose "With skin", we apply a 90% edible factor, because the skin is typically not consumed and adds weight without contributing significant calories.
The formula used is:
Calories = (Weight in oz × Edible Factor) × 17.5 kcal/oz
For example, a 100-gram serving (about 3.5 oz) of peeled kiwi would yield approximately 61 kcal, matching the USDA value.
Worked Examples
Example 1: You have 150 grams of kiwi slices (peeled). Convert to ounces: 150 ÷ 28.35 = 5.29 oz. Calories = 5.29 × 17.5 = 92.6 kcal.
Example 2: You eat 2 medium kiwis with skin, each weighing 3.5 oz (total 7 oz). Edible factor 0.9 → effective weight = 6.3 oz. Calories = 6.3 × 17.5 = 110.3 kcal.
Tips & Best Practices
- For the most accurate tracking, weigh your kiwi after peeling, as the skin can add 10–15% extra weight.
- If you're counting calories for weight management, remember that kiwi is relatively low in calories but high in fiber and vitamin C, making it a great snack.
- Use a digital kitchen scale for precise measurements; volume estimates can vary significantly.
Factors Affecting Accuracy
The calorie content of kiwi can vary slightly depending on the variety (e.g., green vs. gold kiwi) and ripeness. Gold kiwi tends to be slightly higher in sugar and calories. Our calculator uses average values for green kiwi, which is the most common. If you're eating gold kiwi, you might add about 5–10% more calories.
Also, the edible portion factor is an estimate. If you eat the skin, you're actually consuming more fiber and slightly more calories, but the difference is minimal.
Frequently Asked Questions
How many calories are in one medium kiwi?
A medium kiwi (about 3.5 oz or 100 g) contains roughly 61 calories when peeled. Our calculator will give you a precise number based on the exact weight you enter.
Is kiwi good for weight loss?
Yes, kiwi is low in calories and high in fiber, which can help you feel full. A 100-gram serving provides about 3 grams of fiber and only 61 calories, making it a nutrient-dense choice.
Can I eat kiwi skin?
Yes, the skin is edible and contains extra fiber and vitamin C. However, it may have a fuzzy texture that some people dislike. If you eat the skin, you can select the "With skin" option to get a more accurate calorie estimate.
Additional Resources
For more detailed nutritional information, you can refer to the USDA FoodData Central database, which provides comprehensive data on kiwi and thousands of other foods. You can also explore our other fruit calorie calculators for similar tools.