Springform 18 cm / 7 in vs Springform 23 cm / 9 in
| Springform 18 cm / 7 in | Springform 23 cm / 9 in | |
|---|---|---|
| Size | 18 cm across | 23 cm across |
| Base area | 254.5 cm² | 415.5 cm² |
| Usual depth | 7 cm | 7 cm |
| Holds | 1.65 L | 2.7 L |
Can you swap them?
Scale the mixture, or accept a flatter cake. Springform 23 cm / 9 in has 63.3% more area, so a Springform 18 cm / 7 in mixture poured straight in sits 61% as deep. It still bakes, and it browns more at the edges for being shallower. Multiplying by 1.63 restores the depth the recipe was written for.
Scaling the recipe
| Recipe written for | Baked in | Multiply by | Or leave it and get |
|---|---|---|---|
| Springform 18 cm / 7 in | Springform 23 cm / 9 in | 1.63 | 61% of the depth |
| Springform 23 cm / 9 in | Springform 18 cm / 7 in | 0.61 | 163% of the depth |
Multiply every ingredient, including the eggs — round to the nearest half egg and adjust the liquid rather than rounding a whole one up.
Baking time
A mixture 61% as deep is done earlier, not cooler. Leave the temperature alone, start testing at about 61% of the stated time, and let the skewer decide. Why depth sets the time and diameter barely does →
Frequently asked questions
Can I use a Springform 23 cm / 9 in instead of a Springform 18 cm / 7 in?
Yes, with the mixture multiplied by 1.63. Springform 23 cm / 9 in has 415.5 cm² of base against 254.5 cm², so an unscaled Springform 18 cm / 7 in recipe sits 61% as deep and bakes faster.
What is the difference between a Springform 18 cm / 7 in and a Springform 23 cm / 9 in?
Springform 18 cm / 7 in has a base area of 254.5 cm² and Springform 23 cm / 9 in has 415.5 cm² — Springform 23 cm / 9 in is 63.3% larger. At their usual depths they hold 1.65 L and 2.7 L.
Do I need to change the baking time between a Springform 18 cm / 7 in and a Springform 23 cm / 9 in?
Yes. Moving a Springform 18 cm / 7 in mixture into Springform 23 cm / 9 in makes it 61% as deep, so start checking at about 61% of the stated time. Depth drives baking time far more than tin diameter does.
Springform 18 cm / 7 in in full · Springform 23 cm / 9 in in full · All tin comparisons · All baking tin sizes