Work out recipe portion instantly with clear inputs, formula shown and shareable results.
Every ingredient scales by the same factor, desired servings divided by original servings, so multiplying each quantity by that factor keeps the recipe in balance. Scaling ingredient by ingredient invites arithmetic slips; one factor applied to everything is both faster and self-consistent.
Scaling factor
factor = servings needed / servings the recipe makes
Scaled quantity
scaled amount = original amount x factor
factor = servings needed / servings the recipe makes. Every ingredient scales by the same factor, desired servings divided by original servings, so multiplying each quantity by that factor keeps the recipe in balance.
Scaling ingredient by ingredient invites arithmetic slips; one factor applied to everything is both faster and self-consistent.
Enter servings the recipe makes, servings you need, amount of one ingredient. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.