Calculator tool
How this calculator works
Use the explanation to understand the formula, assumptions, and practical limits behind the calculator result.
How recipe scaling works
The calculator uses one simple ratio:
If a recipe serves 4 and you want 6, the factor is 1.5x. An ingredient listed as 250 g becomes 375 g.
What scales cleanly and what may not
Most bulk ingredients such as flour, rice, water, and chopped vegetables scale close to linearly. Strong seasonings, yeast, leavening, pan size, cooking time, and heat transfer often do not. Doubling a cake batter does not always mean doubling bake time, and multiplying salt or chili exactly can overshoot taste.
Use the calculator to scale the arithmetic, then review the cooking method. For large changes, scale the main ingredients first, adjust seasoning gradually, and check whether the cookware size or cooking batches also need to change.
Frequently asked questions
What is the scaling factor?
It is target servings divided by original servings. A factor above 1 increases the recipe; a factor below 1 reduces it.
Can I scale spices exactly like flour?
You can calculate the amount, but taste-sensitive ingredients often need a slower adjustment. Start with the scaled estimate and correct after tasting when the recipe allows.
Does the calculator change cooking time?
No. It only scales ingredient amount. Cooking time, pan depth, oven load, and batch size may need separate judgment.
Why scale one ingredient at a time?
Recipes list ingredients in different units. Scaling each one separately keeps grams, milliliters, cups, and other units attached to the correct ingredient.
