Plums are often enjoyed for their sweet-tart flavor, but they also contribute useful dietary fiber — especially if you eat them with the skin on. Because fiber content differs between fresh, canned, and dried plums, a single per-100g value isn't always useful. This calculator lets you select the exact plum form and enter your portion size in grams or ounces, then works out the fiber grams, fiber per 100g, and percentage of the 28g Daily Value.
Dietitians generally recommend roughly 25–30g of fiber per day for adults, and plums can be a helpful part of that total. A medium fresh plum (about 66g) provides around 0.9g of fiber, while a 100g portion of dried prunes delivers more than 7g. This range matters for anyone tracking macronutrients, following a high-fiber eating plan, or simply curious about how fruit choices add up.
The calculator also estimates how many grams of your selected plum variety you would need to reach your personal daily fiber target, making it a practical meal-planning tool rather than just a nutrition label reference.
🥤 Plum Fiber per 100g Calculator
1. Choose plum form
2. Enter portion size
3. Daily fiber target (optional)
The FDA Daily Value for fiber is 28 g per day on a 2,000-calorie diet. Adjust to your own goal.
📊 Results
Step-by-Step Guide
- Pick the plum form that matches what you are eating — fresh with skin, peeled, canned in syrup, or dried.
- Enter the portion size in grams or ounces. You can use the preset buttons for common serving sizes.
- Set your personal daily fiber target if 28 g is not right for you.
- Press Calculate to see fiber grams, fiber per 100 g, % of your daily target, and the amount needed to hit your goal.
How the Fiber Calculation Works
The calculator uses standard fiber values from USDA nutrition databases. For each plum form, the fiber density is expressed as grams of fiber per 100 grams of edible portion. Your portion is converted to grams, then the fiber is calculated as: portion (g) × fiber per 100 g ÷ 100.
The % Daily Value is calculated against the FDA reference of 28 g of fiber per day for a 2,000-calorie diet. If your personal target differs, the calculator adjusts the percentage and also works backward to tell you how many grams of that plum form would reach your target.
Worked Example
You eat 3 medium fresh plums with skin, total weight about 198 g. Using 1.4 g fiber per 100 g: 198 ÷ 100 × 1.4 = 2.77 g of fiber. That is roughly 10% of a 28 g daily target. To reach 28 g from plums alone you would need about 2,000 g — roughly 30 medium plums — which shows why plums are best paired with other fiber sources.
Reference: Fiber in Common Plum Forms
| Plum form | Fiber per 100 g | Fiber per typical serving |
|---|---|---|
| Fresh plums, with skin | 1.4 g | 0.9 g (one medium plum, 66 g) |
| Fresh plums, peeled | 1.0 g | 0.7 g (one medium plum, 66 g) |
| Canned plums, syrup pack | 1.0 g | 1.1 g (half cup, 113 g) |
| Dried plums (prunes) | 7.1 g | 5.0 g (a 70 g serving of about 5 prunes) |
Common Mistakes to Avoid
- Mixing up peeled and unpeeled plums — the skin holds a significant share of the fiber.
- Using weight of the pit. The fiber values apply to edible flesh only; weigh plums after removing pits.
- Assuming canned plums in syrup have the same nutrition as fresh; the syrup dilutes fiber per gram.
- Forgetting that dried plums are much higher in fiber per gram and also in calories and sugar.
Frequently Asked Questions
Do plums actually help with digestion? Plums and prunes are known for mild laxative effects, partly from fiber but also from naturally occurring compounds like sorbitol and phenolic acids. Fiber contributes to stool bulk, but prune juice, which is low in fiber, still helps many people.
Why is the fiber per 100 g lower for canned plums? Canned fruit is packed in liquid, so a 100 g portion includes more water and syrup relative to flesh. That lowers the fiber density compared with fresh fruit.
Are plums a high-fiber fruit overall? They are moderate — higher than watermelon or grapes but lower than berries, apples with skin, or dried fruits. For reference data, see USDA FoodData Central and the NIH fiber fact sheet.