Scaling a recipe up or down comes down to one multiplier applied to every ingredient.
Scaling factor = Desired servings ÷ Original servings
Where
| Desired servings | How many you want to make |
| Original servings | What the recipe yields |
Worked example
A recipe for 4 that you want to make for 6 has a factor of 6 ÷ 4 = 1.5. Multiply every ingredient by 1.5.
Some things resist scaling: cook times, pan sizes, and seasoning need judgment rather than the raw multiplier.
Scale instantly with the Recipe Scaler in the cooking calculators, and read How to Scale a Recipe.