CaloriMateBuild the batch estimate once
List edible ingredients with quantities and matching references. Specify raw or cooked state, drained weight where relevant, and added fats or sauces. Scale each reference to its ingredient amount, then add the components.
For an illustrative batch, suppose three components contribute 600, 300 and 100 kcal. The calculated batch total is 1,000 kcal. Those component estimates are assumptions for the example, not a nutrition declaration for a named recipe. Recording their source lets you revise the recipe when better information becomes available.
Measure the edible cooked yield
After preparation, weigh the edible batch without the pot or container. If the 1,000-kcal illustrative batch weighs 800 g, its average density is 1.25 kcal/g. A 200-g portion is then 250 kcal under the batch calculation.
| Share of the example | Edible weight | Calculated energy |
|---|---|---|
| Whole batch | 800 g | 1,000 kcal |
| One quarter | 200 g | 250 kcal |
| Three eighths | 300 g | 375 kcal |
If cooking changes only water, it changes the density rather than creating energy. Material discarded or added during preparation needs a separate decision.
Define servings by fraction or mass
You can divide a batch into equal portions or allocate by weighed share. If a recipe makes four equal servings, each is one quarter. If you eat a different mass, use your actual fraction rather than keeping the equal-serving label.
For unequal household servings, save the whole recipe and scale each plate. This avoids treating a small lunch and a larger dinner as the same “one serving.” A clearly named portion is easier to reuse than an unexplained bowl or scoop.
The average assumes a representative share
Weight-based allocation assumes the portion resembles the batch's overall composition. That can work reasonably for a well-mixed soup, but a chunky stew portion with extra meat can differ from a broth-heavy portion of the same mass.
If the components separate visibly, log the main components or portion them deliberately before relying on the batch average. Do not claim that weighing any 200 g automatically reveals its exact nutrient composition. A scale fixes the mass question, not every ingredient-distribution question.
Make the saved recipe easy to revise
Keep ingredient references, edible batch yield, included sauces and a date or recipe version. When the amount of oil, meat or final water changes, update the recipe rather than assuming the old density still applies. Avoid counting an included ingredient again on the meal screen.
Use the recipe calorie calculator to explore ingredient arithmetic, and carry the serving assumptions into your diary. The result is a transparent estimate you can improve, rather than a precise-looking number detached from a recipe.
Common questions
Do I divide by raw weight or cooked weight?
For a cooked serving taken from an ingredient-based batch estimate, use the edible cooked batch yield as the denominator.
Are equal-weight stew portions always nutritionally identical?
No. Weight allocation assumes a representative mixture. Different shares of meat, vegetables and broth can change the composition.
Sources & methods
- USDA FoodData Central data documentationDifferent food data types have different provenance, preparation detail and completeness.
- USDA cooking yields for meat and poultryResearch tables distinguish cooking yield, moisture change and fat change for specific protocols.
- FDA: understanding the Nutrition Facts labelServing size, servings per container and interpreting a packaged-food label.