Guava is often celebrated for its vitamin C and fiber, but it also contains a useful amount of plant protein — about 2.6 grams per 100 grams of raw fruit. This calculator turns any guava serving into a precise protein estimate, while also showing calories, carbohydrates, and fiber. That makes it easier to log snacks, build fruit bowls, and judge how guava fits your daily macro targets.
You can enter the amount in grams, ounces, whole fruits, or cups. Quick-fill servings let you start from one whole guava, a 100 g portion, or a chopped cup. Add your daily protein goal to see what percentage of it a serving provides.
Because guava is naturally lower in protein than animal foods or legumes, the tool keeps expectations honest: it is designed for accurate nutrient tracking, not as a protein supplement planner. Pair the numbers with other high-protein foods to build balanced meals.
🥭 Protein in Guava
How the Protein Calculation Works
Guava is a nutrient-dense tropical fruit, but its protein content is modest. This calculator uses the USDA nutrient database value for raw common guava: approximately 2.55 g of protein per 100 g of edible fruit. The same 100 g portion also contains about 68 kcal, 14.3 g of carbohydrates, and 5.4 g of dietary fiber, so the tool shows the full macro picture at your chosen serving size.
The math is straightforward:
Grams of fruit = entered amount × unit conversion factor
Protein = grams of fruit × 0.0255
If you enter 200 g, the calculation is 200 × 0.0255 = 5.1 g of protein. The same method applies to calories, carbs, and fiber. The optional daily protein goal field converts your protein result into a percentage of a target, with 50 g used as the default when no goal is entered.
Step-by-Step Guide
- Type a serving amount in the number field. You can use whole numbers or decimals, such as 0.75.
- Choose the matching unit: grams, ounces, whole guava, or cups of chopped guava.
- Optionally enter a daily protein goal in grams, such as 50, 100, or 120.
- Click Calculate protein. The result card shows protein, calories, carbs, fiber, and how much of your daily goal the serving covers.
Use the quick-fill buttons above the inputs to jump to common portions. A whole guava is typically about 55 g, and a cup of chopped guava is about 165 g.
Worked Examples
Example 1: 1 whole guava
1 × 55 g = 55 g → protein = 1.40 g, calories ≈ 37 kcal, carbs ≈ 7.9 g, fiber ≈ 3.0 g.
Example 2: 100 g guava
100 × 0.0255 = 2.55 g protein, 68 kcal, 14.3 g carbs, 5.4 g fiber.
Example 3: 250 g (about 4.5 fruits)
250 × 0.0255 = 6.38 g protein, 170 kcal, 35.8 g carbs, 13.5 g fiber.
Guava is clearly higher in fiber than protein, which makes it a useful fruit for digestion and plant-based variety, but not a primary protein source on its own.
Reference Values for Common Servings
The table below summarizes approximate values for raw common guava. Use it for quick meal planning or when a scale is not available.
| Serving | Weight | Protein | Carbs | Fiber | Calories |
|---|---|---|---|---|---|
| 100 g | 100 g | 2.55 g | 14.3 g | 5.4 g | 68 kcal |
| 1 whole fruit | ≈ 55 g | 1.40 g | 7.9 g | 3.0 g | 37 kcal |
| 1 cup chopped | ≈ 165 g | 4.21 g | 23.6 g | 8.9 g | 112 kcal |
| ½ cup chopped | ≈ 82 g | 2.09 g | 11.7 g | 4.4 g | 56 kcal |
These averages reflect edible flesh including the skin and seeds, which are both edible in guava. Pink-fleshed and white-fleshed varieties can differ slightly in color and phytonutrients, but their protein and carbohydrate values stay close to the same. To compare guava with other fruits, use the per-100g fruit protein comparison tool.
Tips for Accurate Tracking
- Weigh the whole edible fruit on a kitchen scale instead of relying on visual estimates. A medium guava can range from about 50 g to 70 g depending on variety and ripeness.
- If you log foods in an app, choose the entry named guava, common, raw, to match the values used here.
- Cut away only the stem and any bruised areas. The skin and seeds are edible and count toward the nutrient totals.
- On a high-protein diet, treat guava as a fiber and vitamin C source rather than a protein source. Pair it with Greek yogurt, cottage cheese, nuts, or a protein shake to build a more balanced snack.
Protein bonus: One guava with 170 g of low-fat Greek yogurt provides roughly 18–20 g of protein, turning a light fruit snack into a satisfying post-workout option.
Frequently Asked Questions
Is guava a good source of protein?
Guava provides about 2.55 g per 100 g, so it is not a high-protein food. It is better known for vitamin C, fiber, and antioxidants. To reach a daily protein target, combine guava with legumes, dairy, eggs, meat, or tofu.
Do the skin and seeds count?
Yes. The USDA reference values for raw guava include the edible skin and seeds. Unless a recipe says to peel them, weigh the fruit as you would eat it.
Why might my food label show a slightly different number?
Guava variety, growing conditions, ripeness, and moisture content all influence nutrient values. This calculator uses a standard reference average, so small differences from a particular batch are normal and fine for daily tracking.
Does this tool work for dried guava or guava juice?
Not directly. Drying concentrates nutrients and sugars, so dried guava has more protein and calories per gram, while juice is much lower in fiber. For those items, use a label-based food entry instead.
The FDA uses a daily reference value of 50 g of protein for general nutrition information, which is also the default target here when you leave the optional goal empty. You can read more in the FDA Daily Value guidance or browse nutrient profiles in USDA FoodData Central.