The 9×13 baking pan is a 9 by 13-inch rectangular dish that holds roughly 14 cups, making it the go-to for sheet cakes, brownies, and casseroles.
A 9×13 baking pan is the rectangular workhorse of American kitchens. The nominal footprint measures 9 by 13 inches across the top, with most pans running about 2 to 2.5 inches deep. Recipes rarely distinguish between “9×13” and “13×9″—the two names describe the same pan, just rotated.
How Big Is a 9×13 Pan in Inches and Cups?
The standard U.S. baking surface is 9 × 13 inches, which converts to about 22.86 × 33.02 centimeters. Baking references commonly cite the usable cooking area as 117 square inches, and the typical depth lands between 2 and 2.5 inches depending on the manufacturer.
That footprint translates to a hefty volume. Most sources put the capacity around 14 cups when filled to the rim, though numbers stretch to 15 or 16 cups on deeper models. The 2.5-inch depth found on many metal pans is the sweet spot for cake batters that rise without spilling.
| Spec | Typical Value |
|---|---|
| Nominal size | 9 × 13 inches |
| Metric conversion | 22.86 × 33.02 cm |
| Surface area | Roughly 117 square inches |
| Depth | 2 to 2.5 inches by brand |
| Volume | About 14 cups to the rim |
One catch: the advertised number isn’t always the interior measurement. Nordic Ware’s 9×13 Naturals pan, for instance, lists its cooking surface at 12.1 × 8.8 × 2.5 inches, while Sur La Table’s Platinum Pro version measures 13 × 9 × 2.25 inches inside. The rim thickness and wall angle shave off fractions of an inch that rarely matter for recipes but do affect how snugly a lid fits.
What Can You Cook in It?
This pan earns its keep with sheet cakes, bar cookies, brownies, lasagna, mac and cheese, and overnight breakfast casseroles. The wide, flat surface delivers even layers—ideal for desserts that need a clean cut into squares or a single-layer cake that serves a crowd.
Its volume also makes it a natural stand-in for other bakeware. Standard baking practice treats one 9×13 as roughly equivalent to two 8-inch or two 9-inch round pans for batter volume and bake time, though you’ll want to watch the oven since the thinner layer in a 9×13 often finishes a few minutes sooner.
If you’re shopping for a pan to use with a lid for transport or storing leftovers, our tested roundup of the best 13×9 baking pans with lids covers models that seal well and survive the dishwasher.
3 Common Mistakes to Avoid
Swapping pans without adjusting time. A 9×13 has less depth per serving than a 9-inch round, so batters bake faster and brown earlier. Start checking doneness 5 minutes before the recipe’s timer goes off.
Ignoring the material. Dark metal absorbs heat and browns aggressively; glass and ceramic cook slower but hold heat longer after leaving the oven. Shiny aluminum pans like Nordic Ware’s Naturals line deliver gentle, even browning without overdoing the crust.
Trusting the label over the ruler. A “9×13” from one brand may have a different true interior than another. If you’re halving a recipe for a smaller dish or stacking two pans in one oven, measure the inside walls instead of trusting the stamp on the bottom.
Choosing Between Metal and Glass
Pick a metal 9×13 such as the KitchenAid aluminized steel sheet when you want crisp edges on brownies or a golden bottom crust on cornbread.
If baking is a weekly habit, a lifetime warranty like Nordic Ware’s makes the higher upfront cost worthwhile.
References & Sources
- Nordic Ware. “Naturals 9″ x 13″ Rectangular Cake Pan.” Details on the aluminum pan’s interior dimensions, depth, and warranty.
- Sur La Table. “Sur La Table Platinum Pro Rectangular Cake Pan, 9″ x 13″.” Specs on the pan’s 13 × 9 × 2.25-inch baking surface.
- Target. “KitchenAid 9″ x 13″ Aluminized Steel Nonstick Baking Sheet.” Example of a 1-inch-deep rectangular sheet for comparison.
