128 sq in total, about 1.09x the area of a 9x13 pan.
9x13 substitutes
9x13 Pan Equivalent
A 9x13 pan has 117 sq in of surface area. Compare common alternatives before scaling batter.
A 9x13 pan has 117 sq in of area. Two 8x8 pans are close at 128 sq in; a 9x9 pan is smaller at 81 sq in.
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Conversion Chart
| Pan | Nominal size | Calculated area | Source note |
|---|---|---|---|
| 9 x 13 in rectangle | 9 x 13 in | 117.00 sq in | Nominal pan dimensions; area is calculated geometrically. |
| 8 x 8 in square | 8 x 8 in | 64.00 sq in | Nominal pan dimensions; area is calculated geometrically. |
| 9 x 9 in square | 9 x 9 in | 81.00 sq in | Nominal pan dimensions; area is calculated geometrically. |
| 8 in round | 8 in diameter | 50.27 sq in | Nominal pan dimensions; area is calculated geometrically. |
| 9 in round | 9 in diameter | 63.62 sq in | Nominal pan dimensions; area is calculated geometrically. |
| 9 x 5 in loaf | 5 x 9 in | 45.00 sq in | Nominal pan dimensions; area is calculated geometrically. |
Formula
How The Multiplier Is Calculated
Area is calculated from nominal pan dimensions. The batter multiplier is target area divided by source area.
- Rectangle and square: width x length.
- Round: pi x radius squared.
- Display values are rounded for readability.
target area
multiplier =
source area
Substitute ranking
Closest 9x13 Alternatives In This Tool
About 127.23 sq in total, close to 1.09x the area of a 9x13 pan.
81 sq in, about 0.69x the area of a 9x13 pan.
FAQ
9x13 Pan Size Questions
Yes. 13x9 and 9x13 describe the same pan — 117 sq in of surface area. The two numbers are just length x width versus width x length, so recipes use them interchangeably.
At the common 2-inch depth a 9x13 pan is 9 x 13 x 2 = 234 cubic inches, which is about 4 quarts filled level to the brim (one US quart is 57.75 cubic inches). Leave roughly an inch of headroom for batter that rises, so the usable capacity is about 3 to 3.5 quarts.
Close. Half of a 9x13 pan is 58.5 sq in; one 8x8 pan is 64 sq in, about 1.09x larger. An 8x8 is the nearest common pan to half a 9x13, so it is a good choice for baking half a 9x13 recipe.
Among everyday cake and baking pans the 9x13 (117 sq in) is the largest. The usual step up is a half-sheet pan (about 18 x 13 in = 234 sq in), which is roughly double the area, or splitting the batter across two pans.
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