Passion Calorie Calculator

Passion fruit is one of those deceptive foods: a single small fruit may look like a light snack, but its tart golden pulp is surprisingly energy-dense. A 100 g serving of raw passion fruit pulp contains roughly 97 calories, along with more than 10 g of fiber and a hefty dose of vitamin C. Because the edible portion is small — about 18 g per medium fruit — it's easy to either overestimate or underestimate what you're actually eating.

This Passion Calorie Calculator converts any amount into calories and macronutrients. Enter a weight in grams or ounces, count whole fruits, or measure pulp by the cup, and you'll instantly see total calories, carbs, sugar, fiber, protein, and fat for that serving.

Whether you're tracking calories for weight loss, planning a high-fiber diet, or just curious about how many passion fruits fit your daily goals, this tool gives you fast, reliable numbers — with full transparency about how the math works.

🍈 Passion fruit amount

How much are you eating?

Quick fill:

💜 Your result

— kcal

Per 100 g97 kcal

Per fruit (18 g pulp)≈ 17 kcal

Macronutrient breakdown

Carbohydrates—

of which sugars—

of which fiber—

Protein—

Fat—

Step-by-step calculation

How to Use This Calculator

Start by entering how much passion fruit you're working with. You can type a plain number and switch between four units: grams, ounces, whole medium fruits, and cups of pulp. The quick-fill chips above the calculate button are handy for common portions — one fruit, 100 g, half a cup, or 150 g.

After you click Calculate calories, the tool shows the total energy in kilocalories, a macronutrient breakdown (carbs, sugars, fiber, protein, and fat), and a short step-by-step explanation of the math. If you prefer to estimate by counting fruits, use the whole-fruit unit: the calculator assumes a medium purple passion fruit yields about 18 g of edible pulp with seeds.

Tip: for the most accurate result, weigh just the pulp you actually eat (including the seeds) rather than the whole fruit with its rind. The rind is not typically consumed and would inflate your serving weight.

The Math Behind It

The calorie figures are based on USDA FoodData Central values for raw purple passion fruit: 97 kcal per 100 g of edible pulp. To convert any serving to calories, the calculator first normalizes your amount to grams, then applies:

Calories = grams of pulp × 0.97
For example, 150 g × 0.97 = 145.5 kcal. Unit conversions used: 1 oz = 28.35 g, 1 medium fruit = 18 g pulp, and 1 cup of pulp ≈ 236 g.

Macronutrients scale the same way from the per-100-g reference: 23.4 g total carbohydrates, 11.2 g sugars, 10.4 g dietary fiber, 2.2 g protein, and 0.7 g fat. Because fiber is counted within total carbs, the "net carbs" of passion fruit work out to roughly 13 g per 100 g.

These values come from the USDA FoodData Central database, which is the reference standard used by most nutrition-tracking apps.

Worked Examples

Example 1: A single fruit snack. One medium passion fruit = 18 g pulp. 18 g × 0.97 = 17.5 kcal, with about 4.2 g carbs, 1.9 g fiber, less than 1 g protein, and 0.1 g fat. It's a genuinely low-calorie snack.

Example 2: A ¾-cup smoothie add-in. 0.75 cup × 236 g = 177 g of pulp. 177 g × 0.97 = 171.7 kcal. That's a meaningful contribution to a smoothie — expect roughly 41 g of carbs and 18 g of fiber from the passion fruit on its own.

Example 3: Half a pound at breakfast. 8 oz × 28.35 g = 226.8 g. 226.8 g × 0.97 = 220 kcal, with about 53 g carbs and 24 g fiber. Notice that an ounce of pulp is much denser than a handful of leafy greens — unit awareness matters when logging.

Tracking Tips & Common Pitfalls

Weigh pulp, not rind. The thick purple rind makes up roughly half of a whole fruit's weight. If you weigh the entire fruit, your calorie estimate could double.
Don't remove the seeds. Passion fruit seeds are edible and included in the USDA values — no need to pick them out, and their oil contributes only a trace of fat.
Watch for added sugar. Many supermarket products labeled "passion fruit" are actually pulps or nectars with added syrup or sugar. Commercial passion fruit products can contain two to three times the calories of fresh pulp.
Purple vs. yellow varieties. Yellow (maracuyá) passion fruit is often larger and can hold 25–35 g of pulp per fruit, so a single piece may be closer to 30 kcal even though the per-100-g difference is only about 3%.

Important: if you're tracking a prepared product — passion fruit purée with sweetener, yogurt, or juice blends — use the nutrition label on the package instead of this calculator. Added sugar changes both calories and macros substantially.

Reference Values

The table below summarizes the values used by this calculator for raw purple passion fruit pulp (with seeds), based on USDA data. Compare your own servings against these benchmarks.

Measure	Weight	Calories	Carbs	Sugar	Fiber	Protein	Fat
100 g pulp	100 g	97 kcal	23.4 g	11.2 g	10.4 g	2.2 g	0.7 g
1 medium fruit	18 g	17 kcal	4.2 g	2.0 g	1.9 g	0.4 g	0.1 g
1 cup pulp	236 g	229 kcal	55.2 g	26.4 g	24.5 g	5.2 g	1.7 g
1 oz pulp	28.35 g	27.5 kcal	6.6 g	3.2 g	2.9 g	0.6 g	0.2 g

If you'd like to zoom in on just one part of the profile, check our passion fruit fat calculator for a dedicated fat-only breakdown.

Frequently Asked Questions

Are passion fruit calories mostly sugar?

Roughly half of the carbohydrates in passion fruit come from natural sugars (11.2 g per 100 g), but the same serving delivers 10.4 g of fiber. That fiber slows sugar absorption and makes passion fruit a comparatively filling, low-glycemic choice.

Does the variety — purple, yellow, or red — change the calorie count?

Slightly. USDA data for yellow passion fruit lists about 100 kcal per 100 g versus 97 kcal for purple, a difference of only 3%. What changes more is fruit size: yellow varieties are often larger, so a single fruit may contain noticeably more pulp and therefore more calories per piece.

Can I eat passion fruit on a low-calorie diet?

Yes. One fruit is under 20 kcal, and even a generous 100 g serving is under 100 kcal while supplying over a third of your daily fiber needs. Just be careful with passion fruit juices, syrups, and desserts, where added sugar can triple the calorie count. To see how any serving fits your daily target, pair this tool with our calorie surplus calculator.

Why does my tracking app show a different number?

Apps pull from different food databases and may use yellow passion fruit, include the rind by mistake, or use a different edible-portion estimate. The numbers here follow USDA FoodData Central, the same reference used by most major apps, so they're a solid baseline for consistent logging.