Passion fruit is a tropical favorite, but if you’re following a low-carb or keto diet, you need to know its net carbs — total carbs minus fiber. This Passion Net Carbs Calculator instantly computes the net carbs for any serving size of fresh passion fruit (purple or yellow varieties).
Simply enter the weight of passion fruit pulp (including seeds) or the number of whole fruits, and the tool will calculate total carbs, dietary fiber, and net carbs. It also provides a per-100g reference and a step-by-step breakdown. Perfect for keto dieters, diabetics, and anyone tracking macronutrients for weight management or healthy eating.
🔢 Passion Net Carbs Calculator
How to Use This Tool
Using the Passion Net Carbs Calculator is straightforward. Start by entering the weight of your passion fruit serving — you can type a number directly or click one of the preset buttons (100 g, 3.5 oz, 1 fruit, 2 fruits) for quick entry. Then select the unit: grams, ounces, or whole fruit. If you choose "whole fruit," the calculator automatically estimates the pulp weight based on the variety (purple or yellow). Next, pick the variety — purple passion fruit is more common and has higher fiber content, while yellow passion fruit is slightly lower in carbs and fiber. Click "Calculate Net Carbs" to see the breakdown: total carbs, dietary fiber, and net carbs for your exact serving. Use the Reset button to clear all fields and start a new calculation.
Formula Explained
Net carbs are calculated using the standard formula: Net Carbs = Total Carbohydrates − Dietary Fiber. Fiber is subtracted because it is not digested by the human body and does not raise blood sugar. For passion fruit, the nutritional values per 100g are sourced from the USDA FoodData Central database. For purple passion fruit: total carbs 23.38 g, fiber 10.4 g. For yellow passion fruit: total carbs 17.2 g, fiber 3.3 g. The calculator multiplies these per-100g values by your serving weight (converted to grams) to get the exact amounts. If you enter whole fruits, the average pulp weight per fruit is used: 18 g for purple, 30 g for yellow.
Note: These values are averages and can vary slightly based on ripeness, growing conditions, and specific cultivars. For the most accurate tracking, weigh your passion fruit pulp directly.
Worked Examples
Example 1: You eat 100 g of purple passion fruit pulp. Total carbs = 23.38 g, fiber = 10.4 g, net carbs = 23.38 − 10.4 = 12.98 g.
Example 2: You have 2 yellow passion fruits. Each fruit yields ~30 g pulp, so total = 60 g. Total carbs = (17.2/100) × 60 = 10.32 g, fiber = (3.3/100) × 60 = 1.98 g, net carbs = 10.32 − 1.98 = 8.34 g.
Example 3: A recipe calls for 3.5 oz of purple passion fruit pulp. Convert to grams: 3.5 × 28.3495 = 99.22 g. Total carbs = 23.38 × 0.9922 = 23.20 g, fiber = 10.4 × 0.9922 = 10.32 g, net carbs = 23.20 − 10.32 = 12.88 g.
Tips & Best Practices
- Always weigh your passion fruit pulp for the most accurate net carb count — visual estimates can be off by 20% or more.
- If you're on a strict keto diet (typically <20 g net carbs per day), a single 100 g serving of purple passion fruit provides about 13 g net carbs, leaving room for other low-carb foods.
- Passion fruit seeds are included in the pulp weight and contain some fiber, so do not remove them.
- For meal prep, freeze passion fruit pulp in ice cube trays (each cube ~15 g) for easy portioning.
Frequently Asked Questions
Is passion fruit keto-friendly? Yes, in moderation. Purple passion fruit has about 13 g net carbs per 100 g, which fits into a standard keto diet if you keep portions small (e.g., 50 g = ~6.5 g net carbs).
Does the calculator account for the rind? No. The calculator assumes you are using only the edible pulp (including seeds). The rind is not typically consumed and is not included in the nutritional data.
Can I use this for other fruits? This calculator is specifically calibrated for passion fruit. For other fruits, try our Flax Net Carbs Calculator or Persimmon Net Carbs Calculator.
Where do the nutritional values come from? The data is from the USDA FoodData Central database, which is a reliable source for standardized nutritional information. You can access the full entries for purple passion fruit and yellow passion fruit.