Eggs and whole items
A result such as 1.5 eggs is shown as-is. You can beat and measure the egg, or round based on the recipe.
Cooking
Adjust recipe quantities for the servings you need. Double, halve or scale a recipe to any number of servings.
Servings and factor
Enter decimals or fractions such as 1/2, 2.5 or 1 1/2.
Quantity multiplication is linear, but real cooking is not always. The calculator preserves values so you can decide without hidden rounding.
A result such as 1.5 eggs is shown as-is. You can beat and measure the egg, or round based on the recipe.
Yeast, salt and spices may need adjustments for flavor, fermentation or texture.
When the recipe size changes, thickness and cooking time do not always scale at the same rate.
This calculator preserves units. To convert compatible measurements, open the cooking measurement converter.
Divide the desired servings by the original servings and multiply each quantity by that factor. This calculator applies the calculation to every ingredient.
The factor is desired servings divided by original servings. For example, scaling from 4 to 10 servings gives a factor of 10 / 4 = 2.5.
Not always. The calculator does not automatically round 1.5 eggs to 2. Decide based on the recipe, egg size and acceptable margin of error.
It can. Ingredient quantities scale linearly, but the pan, batter thickness, oven and type of recipe can change the actual cooking time.
Not in this version. It preserves the units you enter. Use the cooking measurement converter for compatible unit conversions.
Open the cooking measurement converterEnter the original servings and half that number as the desired servings. For example, if a recipe makes 8 servings and you need 4, the factor is 0.5.
Yes. Paste simple lines such as '2 cups flour', '1/2 teaspoon salt' or 'salt to taste'. Each line remains editable before you copy the result.