How to use this calculator
Scale an ingredient to a new serving count. Enter original ingredient amount, original servings, desired servings. The result updates when you change an input. To compare two sets of inputs, save scenario A, then enter the second set; the result panel shows the difference.
Formula and limits
New quantity = original quantity × desired servings ÷ original servings. Keep the ingredient unit unchanged. Cooking time does not scale the same way.
Worked example
The following example uses the calculator’s starting values. It is an illustration of the method, not a recommended target.
| Input | Example value |
|---|---|
| Original ingredient amount | 250 |
| Original servings | 4 |
| Desired servings | 6 |
Ingredient amount in original units: 375
Scale factor: 1.5×
Interpreting your result
Keep ingredient units consistent and verify actual recipe quantities. Scaling ingredients does not automatically scale cooking time, temperature, or food-safety requirements.
Comparing alternatives
Save the first result as scenario A, then change one input. The comparison shows the numeric difference; it does not label either result as better. Choose inputs that describe realistic alternatives. Values shown on screen are rounded, so calculations from rounded intermediate results may differ slightly.