Celery is famous for being low in calories, but if you are tracking your intake you still want to know exactly what a portion adds up to. This celery calories per ounce calculator converts any serving — ounces, grams, medium stalks, or chopped cups — into a precise calorie estimate. It also shows carbs, fiber, protein, and fat, so you can see the full nutrition picture in seconds.
The calculator is built for calorie counters, meal preppers, and anyone following a flexible diet. Use the standard 14 kcal per 100 g value for raw celery, or enter a custom label value if you are logging packaged celery that differs from the USDA average. Results show both the total for the amount you measured and a reusable per-ounce reference for future servings.
Whether you are adding celery to soups and stir-fries or building a low-calorie snack plate, this tool gives you a fast and reliable starting point.
🥬 Celery Calories Per Ounce Calculator
Estimate total calories and macros for any celery portion, with a per-ounce reference.
1. Enter Your Celery Amount
2. Set Calorie Basis optional
Quick Start: Turning Any Celery Amount Into Calories
Enter the amount of celery you plan to use, choose the unit that matches your measurement, and press Calculate. The tool accepts four common ways of measuring celery:
- Ounces (oz) — best when you are weighing with a kitchen scale.
- Grams (g) — handy for recipes that use metric measurements.
- Medium stalks — a convenient scale-free option; the tool treats one medium stalk as 40 g.
- Cups chopped — useful for salads and soups; one loosely packed cup of chopped celery is about 101 g.
If your celery comes with a nutrition label that lists a different calorie value, you can overwrite the default 14 kcal per 100 g field before calculating. Otherwise, leave it at the standard raw-celery value. The calculator will show the total calories, a per-ounce reference, and a macro breakdown all at once.
Tip: Weighing celery in ounces or grams gives the most reliable result. Stalk and cup estimates are convenient, but stalk thickness and how finely you chop celery both affect how much fits in a cup.
The Numbers Behind Celery
Raw celery is roughly 95% water, which explains why it delivers so few calories. According to USDA standard reference data, 100 g of raw celery provides about 14 kcal, 3.0 g of carbohydrates, 1.6 g of fiber, 0.7 g of protein, and 0.2 g of fat. It also contains useful amounts of vitamin K, potassium, and folate for a vegetable with such a low energy density.
This calculator uses a simple proportional method:
Calories = (weight in grams ÷ 100) × calories per 100 g
Because 1 ounce equals 28.35 g, the same formula means one ounce of raw celery contains about 4 kcal. The macro values are scaled in exactly the same way, so if you double the celery, you double the energy and nutrients. When celery is cooked without added fat, its calorie density is close to raw celery, but if you roast or sauté it with oil, butter, or sauce, the extra fat calories become part of the dish. For reliable product-specific values, check the USDA FoodData Central database.
Worked Examples
Example 1: One medium stalk
A typical 40 g medium stalk of raw celery contains 40 ÷ 100 × 14 = 5.6 kcal. The calculator rounds this to about 6 kcal and also shows roughly 1.2 g of carbs and 0.6 g of fiber.
Example 2: Three ounces with peanut butter
Three ounces of celery weighs 85.05 g. The celery contributes 85.05 ÷ 100 × 14 = 11.9 kcal. If you dip it in 1 tablespoon of peanut butter, which is about 95 kcal, the total snack comes to roughly 107 kcal. The celery remains a very low-calorie base, but the dip changes the final count.
Example 3: Half a cup chopped in a salad
Half a cup of chopped celery weighs about 50.5 g, so 50.5 ÷ 100 × 14 ≈ 7.1 kcal. That is a negligible addition to most meals, while still contributing about 0.8 g of fiber and a pleasant crunch.
Reference Table: Celery by Common Measure
The table below summarizes approximate values for raw celery based on USDA data. Individual stalks can vary, so treat these as close estimates rather than exact numbers.
| Measure | Weight | Calories | Carbs | Fiber |
|---|---|---|---|---|
| 1 medium stalk | 40 g | 5.6 kcal | 1.2 g | 0.6 g |
| 1 ounce | 28.35 g | 4.0 kcal | 0.8 g | 0.5 g |
| 1 cup chopped | 101 g | 14.1 kcal | 3.0 g | 1.6 g |
| 100 g | 100 g | 14.0 kcal | 3.0 g | 1.6 g |
These estimates use a medium stalk weight of 40 g. Small inner stalks may be closer to 25 g, while thick outer stalks can reach 60 g or more. If a stalk looks unusually large or small, weighing it for a moment will keep your daily count accurate.
Tips for Accurate Calorie Tracking
- Use a food scale. Celery's high water content makes volume measurements inconsistent. A scale removes the guesswork from your nutrition log.
- Weigh raw celery before cooking. Water loss during cooking reduces weight but not calories, so pre-cooked weights are the best basis for the 100 g reference.
- Check packaged celery labels. Pre-cut celery sticks sometimes list serving sizes like 80 g or one package. You can enter the label's kcal per 100 g in the optional field to match your product.
- Count dips and dressings separately. Ranch dressing, hummus, and peanut butter add far more calories than the celery itself. Log them as their own items to avoid undercounting.
Keep in mind: Calories per ounce is a density figure, not a serving recommendation. Two foods can have the same calories per ounce but very different water, fiber, and nutrient profiles, so use it as a comparison aid, not the whole picture.
Frequently Asked Questions
Is celery really a “negative calorie” food?
No. Celery is very low in calories, but the energy your body spends digesting it is nowhere near the 4–5 kcal in a one-ounce portion. It is still a great low-calorie, high-water snack, but “negative calorie” is more myth than fact.
Does cooked celery have the same calories per ounce?
Cooked celery without added fat has a similar calorie count per gram. Because cooking removes water, a cup of cooked celery contains more grams of actual celery than a cup of raw chopped celery, so the calorie total for the same volume will be higher.
Why does the per-ounce number stay constant when I change the amount?
Calories per ounce is a property of the food itself. Once the calculator knows the calories per 100 g, it applies the same 28.35 g conversion no matter how much celery you enter. That makes the per-ounce value a handy shortcut for estimating future portions.
Is celery a meaningful source of fiber?
Celery provides about 1.6 g of fiber per 100 g, which is useful but not high compared with beans, oats, or leafy greens. Snacking on a few stalks adds a small amount of fiber while filling you up with water and volume.
If you are working out how celery fits into a structured energy goal, start with a daily calorie target calculator to set your calorie baseline before logging individual foods.