Loaf 21.5 × 11.5 cm / 8½ × 4½ in vs Springform 18 cm / 7 in
| Loaf 21.5 × 11.5 cm / 8½ × 4½ in | Springform 18 cm / 7 in | |
|---|---|---|
| Size | 22 × 12 cm | 18 cm across |
| Base area | 247.3 cm² | 254.5 cm² |
| Usual depth | 7 cm | 7 cm |
| Holds | 1.61 L | 1.65 L |
Can you swap them?
Swap them freely. The areas are within 2.9% of each other, which is less than the variation between two tins of the same nominal size from different manufacturers. Use the recipe as written.
Scaling the recipe
| Recipe written for | Baked in | Multiply by | Or leave it and get |
|---|---|---|---|
| Loaf 21.5 × 11.5 cm / 8½ × 4½ in | Springform 18 cm / 7 in | 1.03 | 97% of the depth |
| Springform 18 cm / 7 in | Loaf 21.5 × 11.5 cm / 8½ × 4½ in | 0.97 | 103% 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
The depths work out the same here, so use the time as written. Why depth sets the time and diameter barely does →
Frequently asked questions
Can I use a Springform 18 cm / 7 in instead of a Loaf 21.5 × 11.5 cm / 8½ × 4½ in?
Yes, with the mixture multiplied by 1.03. Springform 18 cm / 7 in has 254.5 cm² of base against 247.3 cm², so an unscaled Loaf 21.5 × 11.5 cm / 8½ × 4½ in recipe sits 97% as deep and bakes faster.
What is the difference between a Loaf 21.5 × 11.5 cm / 8½ × 4½ in and a Springform 18 cm / 7 in?
Loaf 21.5 × 11.5 cm / 8½ × 4½ in has a base area of 247.3 cm² and Springform 18 cm / 7 in has 254.5 cm² — Springform 18 cm / 7 in is 2.9% larger. At their usual depths they hold 1.61 L and 1.65 L.
Do I need to change the baking time between a Loaf 21.5 × 11.5 cm / 8½ × 4½ in and a Springform 18 cm / 7 in?
No. The two areas are within 2.9%, so the batter sits at effectively the same depth and bakes in the same time.
Loaf 21.5 × 11.5 cm / 8½ × 4½ in in full · Springform 18 cm / 7 in in full · All tin comparisons · All baking tin sizes