How to use the focaccia calculator
- Choose your pan – rectangle or round – and enter its size in inches or centimeters.
- Pick a thickness. Classic works for most people; thick and pillowy is great for sandwiches.
- Weigh the ingredients shown. The dough is sized to your pan so it fills it evenly.
How much focaccia dough per pan?
We size dough by pan area. A classic focaccia uses about 7 g of dough per square inch (roughly 1.1 g per cm²).
| Pan | Thin | Classic | Thick |
|---|---|---|---|
| 8×8″ (20 cm square) | 350 g | 450 g | 545 g |
| 9×13″ (23×33 cm) | 645 g | 820 g | 995 g |
| Half sheet 18×13″ | 1,285 g | 1,640 g | 1,990 g |
| 10″ round (25 cm) | 430 g | 550 g | 670 g |
Sourdough focaccia method
- Mix flour, most of the water and the starter. Rest 30 minutes, then add salt, the remaining water and the olive oil, squeezing it in until absorbed.
- Bulk ferment 4–6 hours at room temperature with 3–4 sets of coil folds in the first 2 hours.
- Optional cold rest: refrigerate the dough overnight (12–24 hours) for more flavor and bigger bubbles.
- Pan it. Pour the oil into the pan, tip in the dough, and gently stretch it towards the corners. If it springs back, wait 15 minutes and try again.
- Final proof 2–4 hours until puffy and jiggly.
- Dimple and top. Drizzle with oil, press your fingers all the way to the bottom of the pan, and add flaky salt and rosemary.
- Bake at 230 °C / 450 °F for 22–28 minutes until deep golden on top and crisp underneath.
Frequently asked questions
How much dough for a 9x13 focaccia?
About 800–850 g of dough for a classic thickness (roughly 7 g per square inch). Use about 650 g for thin focaccia and 1,000 g for a thick, pillowy one.
What hydration is best for focaccia?
75–85%. Higher hydration gives bigger bubbles and a lighter crumb. The pan does the shaping, so wet dough is not a problem – coat your hands with oil to handle it.
How much olive oil goes in the pan?
About 2–3 tablespoons (30–45 ml) for a 9x13 pan – enough to coat the bottom generously. It fries the base so it turns crisp and golden.