This cucumber vitamin C calculator turns any cucumber portion into a clear vitamin C number. Enter grams, ounces, sliced cups, or whole cucumbers, choose with peel or peeled, and the tool returns milligrams of vitamin C plus the percentage of your daily target. It is built for meal planners, nutrition students, fitness trackers, and anyone curious about a single ingredient on their plate.
Fresh cucumber has a modest vitamin C density because it is roughly 95% water, yet it still adds hydration and useful micronutrients to salads, snacks, and cold dishes. The calculator makes it easy to see which portions contribute meaningfully and which are only small side bits.
The default daily target is 90 mg, the FDA Daily Value for vitamin C, but you can adjust it to your own intake goal, whether you follow the RDA for adults or a higher wellness target. A step-by-step breakdown explains the conversion, so the numbers always make sense.
🥒 Cucumber amount
🧑🌾 Preparation
🎯 Daily vitamin C target
How to Use This Tool
Start by entering the amount of cucumber you plan to eat. The unit selector supports grams (g), ounces (oz), loosely packed sliced cups, and whole medium or large cucumbers. With whole cucumbers, the amount you type is the number of cucumbers, not the weight. The tool assigns a typical medium cucumber weight of 201 g and a large cucumber weight of 301 g so you can estimate quickly without a scale.
Next, choose whether the cucumber is with peel or peeled. This choice changes the vitamin C density slightly and also matters for fiber and overall micronutrient intake. Finally, set your daily vitamin C target. The default 90 mg is the FDA Daily Value used on Nutrition Facts labels, but you can change it to 75 mg for adult women, 90 mg for adult men, or 100–200 mg if you are modeling a higher intake goal.
Press Calculate to see your vitamin C in milligrams, its percentage of your daily target, and a brief step-by-step breakdown. Use Reset to clear back to the default values, or tap any preset pill to quickly test a common portion.
The Math Behind It
The tool converts your portion to grams, then applies the USDA's average vitamin C density for raw cucumber. For cucumber with peel the value is about 2.8 mg per 100 g, and for peeled cucumber it is about 3.2 mg per 100 g. The conversion looks like this:
Vitamin C (mg) = weight in grams × (mg vitamin C per 100 g ÷ 100)
% of daily target = (vitamin C in mg ÷ daily target in mg) × 100
For example, 1 cup of sliced cucumber with peel weighs about 104 g, so the calculation is 104 × 0.028 = 2.9 mg of vitamin C. Against the 90 mg Daily Value, that works out to 3.2%.
The underlying values come from USDA FoodData Central. The National Institutes of Health also publishes a detailed vitamin C fact sheet if you want the full dietary guidance behind the Daily Value.
Worked Examples
Example 1: Cucumber salad. You add 1 cup of sliced cucumber with peel to a salad. At 104 g per cup, vitamin C = 104 × 0.028 = 2.9 mg. Against a 90 mg target, that is 3.2% of your Daily Value.
Example 2: Whole cucumber snack. A medium cucumber with peel weighs about 201 g. Vitamin C = 201 × 0.028 = 5.6 mg, or 6.2% of the 90 mg Daily Value. If the same cucumber is peeled, the estimate becomes 201 × 0.032 = 6.4 mg, or 7.1%.
Example 3: Cucumber sticks. A 100 g handful of cucumber sticks with peel gives 2.8 mg vitamin C, or 3.1% DV. Without peel, it is 3.2 mg, or 3.6% DV.
Reference: Vitamin C in Common Portions
| Portion | Weight | Vitamin C (mg) | % DV (90 mg target) |
|---|---|---|---|
| 1/2 cup sliced, with peel | 52 g | 1.5 mg | 1.6% |
| 1 cup sliced, with peel | 104 g | 2.9 mg | 3.2% |
| 100 g, with peel | 100 g | 2.8 mg | 3.1% |
| 1 small cucumber | about 150 g | 4.2 mg | 4.7% |
| 1 medium cucumber | about 201 g | 5.6 mg | 6.2% |
| 1 large cucumber | about 301 g | 8.4 mg | 9.3% |
These values assume raw cucumber with peel. Peeled cucumber has a slightly higher concentration per 100 g because trimming the peel removes mostly water and fiber, concentrating the vitamin C in the flesh.
Factors Affecting Vitamin C Content
Weigh cucumber on a kitchen scale for the most accurate result. Measuring cups are convenient but less precise because slice thickness and packing affect the actual weight. When you use a cup measure, lightly pack the slices instead of compressing them.
Vitamin C is water-soluble and sensitive to heat. Boiling or soaking cucumber in water can leach vitamin C out of the flesh, and prolonged storage at room temperature slowly lowers the content. Eat cucumber raw and close to purchase to preserve the most vitamin C, and remember that cucumber is not a dense source compared with peppers, citrus, or broccoli.
Frequently Asked Questions
Is cucumber a good source of vitamin C? No, cucumber is a poor-to-moderate source. A medium cucumber provides only about 5.6 mg, or 6% of the Daily Value, whereas a medium orange provides roughly 70 mg. Cucumber still contributes, but it is best combined with other vitamin C foods.
Why does peeled cucumber show more vitamin C per 100 g? The skin is mostly water and adds weight without much vitamin C. Removing it reduces total mass, so the same vitamin C appears slightly more concentrated when expressed per 100 g. In a normal serving the absolute difference is small.
Can I use this calculator for pickles or cooked cucumber? The values are for raw fresh cucumber. Pickling and heat change the moisture and vitamin C content, so the estimate would not be reliable for processed cucumbers.
Precision Notes
Whole-cucumber weights are averages; actual cucumbers can range from about 120 g to 400 g. If your cucumber is unusually small or large, enter its weight in grams or ounces instead of choosing a whole-cucumber unit. The vitamin C density in USDA data also varies by growing conditions and lab testing, but 2.8 mg and 3.2 mg per 100 g are reasonable planning values for raw cucumber.