Focaccia Pan Calculator

Scale your focaccia recipe to a different pan size. Compare round and rectangular pans, use cm or inches, and keep hydration unchanged.

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Measure the flat inside base. Each group contains pans of the same size. A round pan uses its diameter.

Pans in the original recipe
Pans you want to use
Your original recipe

Enter the quantities for the entire original batch, across all original pans. The starting values are a calculation example; replace them with your recipe.

Starter added to dough / Other ingredients (total weight)
Other weighed dough ingredients. Keep pan oil and toppings separate. This tool counts only water and starter water toward hydration.

Quantities for your pans

Recipe multiplier
×2.0000
Total pan area
600.0 → 1,200.0 cm²
Dough per target pan
1,866.0 g
IngredientOriginalRevised
Flour added to dough500.0 g1,000.0 g
Water added to dough400.0 g800.0 g
Salt10.0 g20.0 g
Oil mixed into the dough20.0 g40.0 g
Yeast3.0 g6.0 g
Oil for the pan and topping15.0 g30.0 g
Total dough933.0 g1,866.0 g

Total dough excludes oil for the pan and topping. That oil is scaled separately.

Hydration (including starter): 80.0% → 80.0%

Scaling by base area aims to keep dough thickness similar. Follow your original recipe’s fermentation and baking cues; times can change.

Weights are displayed to 0.1 g. Small differences in their rounded sum are normal. Hydration is a formula ratio, not a promise about dough handling or fermentation time.

Adjust hydration or loaf weight →

Saved recipes

Saved recipes stay in this browser. No account or cloud sync. Recipe names are excluded from shared links and analytics.

    Read the worked example →

    Method and limits

    Multiply the ingredients by the area ratio

    For a rectangle, base area is length × width. For a round pan, it is π × (diameter ÷ 2)². Multiply each pan’s area by the number of identical pans in that group. The recipe multiplier is total target area ÷ total original area. All ingredients scale by the same multiplier, so the ingredient proportions stay the same.

    A 20 × 30 cm base has an area of 600 cm²; a 30 × 40 cm base has 1,200 cm². The multiplier is 2. In this example, 500 g flour and 400 g water become 1,000 g flour and 800 g water. Two target pans of the original size also give a multiplier of 2. When your pans have different sizes, calculate a separate target batch for each size.

    Round pans, inches and useful measurements

    A round pan’s diameter is the full distance across its inside base, not its radius. Measure the base rather than the rim, especially for a tapered pan. Use centimetres or inches independently for the two pans; the calculator converts them before comparing areas. Changing the unit selector converts the numbers without changing the pan’s physical size.

    Area scaling is a starting point for a similar thickness, not a promise of an identical finished loaf. A deep pan does not require extra dough if you want the same thickness. Pan material, taper and oven behaviour still matter. Avoid filling a pan based on its full volume: dough needs room to rise.

    Keep starter, dough oil and finishing oil distinct

    If your recipe uses starter, enter its total weight and hydration. A 100 g starter at 100% hydration contains 50 g flour and 50 g water. Those quantities belong in the hydration calculation; do not add them to the ingredient table again. Enter zero starter for a yeast recipe. The calculator scales starter or yeast without converting one fermentation method to the other.

    Oil mixed into dough contributes to dough weight but is not water. Oil for coating the pan or drizzling over the top has its own row and is excluded from dough weight and hydration. Split any oil quantity described as “divided” in your source recipe accordingly. Other dough ingredients scale by weight, but this tool does not estimate water from milk, eggs or wet toppings; for enriched recipes its displayed hydration covers only added water and starter water.

    Focaccia recipe: adjust quantities for your pan →

    Formula reference

    External baking references in English. Use the recipe’s own method, ingredients and baking instructions.