Ever baked a hearty pea slice, a pea-and-vegetable loaf, or a batch of split pea fritters and wondered exactly what one slice costs you in calories? This calculator turns that guesswork into a clear number. Whether you track calories for weight management, meal prep, or just want to balance your plate, you can get an accurate per-slice figure in seconds.
Use it two ways: enter the total calories of your finished dish, or estimate from the peas themselves plus any add-ins like oil, eggs, and cheese. You can also enter the whole dish weight to see calories per 100g, which makes comparing store-bought pea products much easier.
Built for home cooks, fitness enthusiasts, and anyone planning balanced meals, this tool uses standard USDA nutrition values for peas. The math is simple, the results are instant, and the breakdown shows you exactly how the number was reached.
🥗 Pea Slice Calorie Details
Step-by-Step Guide
Start by deciding which mode matches what you know about your dish. If you have the total calorie number from a recipe, a food scale, or a nutrition label, choose “I know the whole dish’s calories”. If not, choose the estimate mode and enter the weight of peas you actually used; the calculator uses standard USDA calorie factors to work out the pea portion, and you add the calories from any extra ingredients.
- Select your calculation mode.
- In estimate mode, weigh the peas after cooking (canned peas should be drained first) and choose the pea form that matches.
- Add calories for everything else in the dish — cooking oil, butter, eggs, cheese, flour, milk, etc.
- Enter the number of slices you plan to cut.
- Optional: enter the total weight of the finished dish to get calories per 100g as a bonus metric.
- Press Calculate and review the breakdown.
How the Calorie Estimate Works
The calculator uses the calorie density of the pea form you selected, expressed in kilocalories per 100 grams. For a dish made with peas and other ingredients, the formula is:
Once the total is known, the per-slice figure is simply the total divided by the number of slices:
If you also enter the whole dish weight, the calculator computes calories per 100g using total calories ÷ total weight × 100. This is useful when slices are uneven or when you want to compare different batches.
The density values come from the USDA Agricultural Research Service’s FoodData Central database. The number of calories in a given weight of peas can vary slightly by variety, harvest, and water content, so treat the result as an excellent estimate rather than a laboratory measurement.
Reference Data: Calories in Common Pea Forms
| Pea form | Approx. kcal per 100g |
|---|---|
| Green peas, fresh or frozen, boiled | 81 |
| Canned green peas, drained | 69 |
| Split peas, cooked | 116 |
| Split peas, dry (before cooking) | 352 |
| Pea flour | 356 |
These are average figures. A 100g serving of cooked green peas is roughly 140-150g in the shell before podding, which matters if you are starting from whole pods. Check any specific product label when available, especially for frozen peas with sauces or seasonings.
Sample Results
Example 1 – Known total calories. You make a pea-and-potato bake, weigh it, and calculate the recipe totals 960 kcal. You cut it into 8 even slices. The result is 960 ÷ 8 = 120 kcal per slice. If the whole bake weighs 800g, it also contains 120 kcal per 100g.
Example 2 – Estimate from peas and add-ins. You bake a pea slice using 400g of cooked green peas, 1 tablespoon of olive oil (119 kcal), and 1 egg (72 kcal). Pea calories = 400 ÷ 100 × 81 = 324 kcal. Add-ins = 119 + 72 = 191 kcal. Total = 515 kcal. Cut into 8 slices: 515 ÷ 8 ≈ 64 kcal per slice.
Notice how much the add-ins change the final number — a modest amount of oil or cheese can add close to 50% more calories. This is why the add-in field matters for accurate tracking.
Tips for Accurate Tracking
- Weigh peas in the state you actually eat them. Cooked peas absorb water, so 100g of dried split peas becomes roughly 250g cooked; using the wrong state will throw off your estimate.
- Drain canned peas thoroughly and measure the drained weight, not the weight including liquid.
- Measure oil in tablespoons or grams rather than “a splash”. One tablespoon of olive oil is 119 kcal, so guessing can change your per-slice figure dramatically.
- Track toppings and sauces separately if you add them after slicing, such as yogurt, cheese, or tomato sauce.
- Use the optional whole-dish weight field to get a calories-per-100g value; this is the fairest way to compare with packaged foods that list per-100g nutrition.
Frequently Asked Questions
Are green peas and split peas the same thing? Not exactly. Green peas (garden peas) are harvested fresh and are higher in water, so they have fewer calories per 100g after cooking. Split peas are dried, hulled peas that are usually cooked into soups or dals; cooked split peas are more calorie-dense per 100g. The calculator includes both, so pick the one that matches your ingredient.
Why does canned pea calorie density seem so low? Canned peas are packed with water, a portion of which is drained before eating. The drained product has about 69 kcal per 100g because of its high water content. If you use the label on the can, that value is usually for drained peas too, so it should match closely.
Can I use this calculator for any sliceable dish? Yes. Although the title focuses on peas, the same logic works for any casserole, tray bake, loaf, quiche, or cake. If your dish does not contain peas, simply use the total-calories mode or treat the pea weight field as the “main ingredient” if you look up its calorie density.
Where do the calorie values come from? The pea calorie densities are based on the USDA FoodData Central database. You can look up additional foods, including exact branded pea products, at the USDA FoodData Central website. Always prefer a product-specific label over a general average when one is available.
Is a calorie estimate accurate enough for meal planning? For most people, yes. A difference of 5-10 kcal per slice is unlikely to affect weight management goals. The bigger risk is forgetting add-ins, which are usually the source of large calorie swings. Use the add-in field generously and, if you are following a strict plan, verify the total with a recipe nutrition calculator.