A 9-inch round pan has 63.6 in² of surface, almost the same as an 8-inch square (64.0 in²); a 9 × 13 dish has 117.0 in².
| Pan | Depth (in) | Area (in²) | Area (cm²) | Volume (cups) | Volume (L) | Closest swap by area |
|---|---|---|---|---|---|---|
| 6-inch round (15 cm) | 2.00 | 28.3 | 182 | 3.9 | 0.93 | 8.5 × 4.5-inch loaf pan (22 × 11 cm) (+35%) |
| 8-inch round (20 cm) | 2.00 | 50.3 | 324 | 7.0 | 1.65 | 9 × 5-inch loaf pan (23 × 13 cm) (-10%) |
| 9-inch round (23 cm) | 2.00 | 63.6 | 410 | 8.8 | 2.08 | 8-inch square (20 cm) (+1%) |
| 10-inch round (25 cm) | 2.00 | 78.5 | 507 | 10.9 | 2.57 | 11 × 7-inch baking dish (28 × 18 cm) (-2%) |
| 8-inch square (20 cm) | 2.00 | 64.0 | 413 | 8.9 | 2.10 | 9-inch round (23 cm) (-1%) |
| 9-inch square (23 cm) | 2.00 | 81.0 | 523 | 11.2 | 2.65 | 10-inch round (25 cm) (-3%) |
| 11 × 7-inch baking dish (28 × 18 cm) | 2.00 | 77.0 | 497 | 10.7 | 2.52 | 2 × 8.5 × 4.5-inch loaf pan (22 × 11 cm) (-1%) |
| 13 × 9-inch baking dish (33 × 23 cm) | 2.00 | 117.0 | 755 | 16.2 | 3.83 | 2 × 9-inch round (23 cm) (+9%) |
| 15 × 10-inch sheet pan (38 × 25 cm) | 1.00 | 150.0 | 968 | 10.4 | 2.46 | 2 × 11 × 7-inch baking dish (28 × 18 cm) (+3%) |
| 18 × 13-inch sheet pan (46 × 33 cm) | 1.00 | 234.0 | 1,510 | 16.2 | 3.83 | 2 × 13 × 9-inch baking dish (33 × 23 cm) (0%) |
| 8.5 × 4.5-inch loaf pan (22 × 11 cm) | 2.75 | 38.3 | 247 | 7.3 | 1.72 | 9 × 5-inch loaf pan (23 × 13 cm) (+18%) |
| 9 × 5-inch loaf pan (23 × 13 cm) | 3.00 | 45.0 | 290 | 9.4 | 2.21 | 8-inch round (20 cm) (+12%) |
How it is computed
Area is π × r² for round pans and length × width for the others; volume is area × depth, filled to the brim with straight sides, so real capacity is a little lower. The swap column finds the pan, or pair of pans, whose area is closest, so batter depth and baking time stay similar.
FAQ
Can I bake a 9 × 13 recipe in two round pans?+
Yes: two 9-inch rounds give about the same surface. Start checking for doneness a few minutes early.
Should I match area or volume?+
Match area to keep the same batter depth and baking time; match volume when the pan will be filled to a set level, as for loaves.