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Adjust the proportions of your own recipe

Six people at the table, or only 150 g of flour in the cupboard? Enter the original recipe, confirm its base, then choose your constraint. Both modes start from the same reference quantities.

Enter your recipe’s ingredients and servings, then confirm that base. You can then choose a target serving count or ingredient amount. The calculation always starts from the reference, not the rounded results.

Reference recipe

Enter the recipe, then confirm its base to calculate.

The base accepts 1–30 ingredients; names of 1–80 characters; quantities 0.001–1,000,000; servings 0.25–100; factor 0.01–100. Results display to three decimal places. No units are converted. Times, temperatures, cookware, salt and yeast do not adjust automatically: check the cooking. For a fraction of a piece, make a practical adjustment. Data stays local and is not saved.

Start with a complete base

Enter the servings and ingredients with their amounts and units, then confirm the base. After any change, confirm it again before calculating.

Keep the same definition of a serving: the calculation preserves the original serving size. It does not work out your guests’ appetites. Even proportional arithmetic cannot tell who will come back for dessert.

By servings: go from four to six

Take a recipe for 4 servings with 200 g of flour and 100 ml of liquid. For 6 servings, the factor is 6 ÷ 4 = 1.5.

Each amount is multiplied by this factor and keeps its unit: scaling servings does not convert grams into millilitres.

  1. Check the recipe entered, then click “Confirm base”.
  2. Select “By servings” under “Calculation mode”, then enter 6 in “Target servings”.
  3. Read the result: 6 servings, 300 g of flour and 150 ml of liquid. Compare the amounts with the ingredients to prepare.

By ingredient: start with the 150 g available

With the same base, 150 g of flour gives a factor of 150 ÷ 200 = 0.75. Ingredient mode calculates the other amounts from this proportion.

Keep the line’s unit: if flour is entered in grams, enter 150, not 0.15. Then check your supplies for every other ingredient.

  1. After “Confirm base”, select “By ingredient” under “Calculation mode”, then flour under “Target ingredient”.
  2. Enter 150 in “Target amount (reference unit)”: the flour in this example is in grams.
  3. Read the result: 3 servings, 150 g of flour and 75 ml of liquid.

Six guests and 150 g of flour: which takes priority?

For 6 guests, this base needs 300 g of flour. With 150 g available, it gives 3 servings of the original size, so choose which target takes priority.

Servings mode shows what you need to buy or add; ingredient mode calculates what matches your supply. The tool does not combine the two targets or find which ingredient runs short first. Compare every calculated amount with what you have.

What the factor does not decide

The factor multiplies amounts without adjusting time, temperature, cookware, salt, yeast or rising time. A salt or yeast line remains a simple proportion to check against your recipe.

For part of an item, such as 1.5 eggs, check the recipe before rounding or substituting: the arithmetic result does not choose the practical adjustment.

Every calculation starts from the confirmed base, never the previous rounded result. You can compare several targets without the amounts drifting.

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