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How Many Cups Does a 13x18 Half Sheet Pan Hold?

A 13x18 half sheet pan holds about 13 cups (3¼ quarts, 3.1 L) filled to the brim — about 8¾ cups of batter at the usual two-thirds fill.

13×18" half sheet pan holds

≈ 13 cups

3¼ quarts · ≈ 3076 ml / 3.1 L · batter at ⅔ fill ≈ 8¾ cups

Data & method: Estimate: Joy of Baking doesn't list a 13×18″ half sheet, so this is its 12½×17½×1″ pan (12 cups) scaled up by bake area. Batter fill is the standard two-thirds convention; quarts and metric are exact US-cup conversions (4 cups = 1 quart). The calculations are covered by automated tests. How we calculate →

Check any pan's volume

Preset to this pan's dimensions — change anything to measure a different pan.

Total pan volume

16.21 cups

≈ 3835 ml · 3.83 L

Millilitres

3835

Litres

3.83

Batter (⅔)

10.81

Fill level

Brim Fill to ⅔ for batter batter

The calculator reports pure geometric volume — straight sides filled to the very top — so for this pan it shows about 16.2 cups against the estimated 13. Charted capacities run lower because real pans have sloped sides and rolled rims. Both are correct; they answer slightly different questions.

Where the 13×18" half sheet sits among sheet pans

Pan Holds (brim) Batter (⅔) Bake area Depth
10×15" jelly roll (10½×15½" inside, 1" deep) 10 cups 6¾ cups 163 sq in 1″
13×18" half sheet (1" deep) 13 cups 8¾ cups 234 sq in 1″

Swapping a recipe into or out of this pan

These hold about the same batter but bake differently — the batter sits at a different depth (shallower runs faster, deeper slower), or a centre tube changes how heat reaches it: 3"-deep 9" round (12 cups; batter 0.5″ → 2.0″ deep), 9×13" rectangle (14 cups; batter 0.5″ → 1.1″ deep), 10" Bundt (12 cups; batter 0.5″ → 1.8″ deep), 9" tube / angel food (12 cups; batter 0.5″ → 2.3″ deep). Treat these as a change of bake, not a straight swap.

Check the batter comes no more than about two-thirds up the new pan. The cake pan converter works out the exact time and temperature shift for any pair.

Filling guidance: two-thirds is the working rule for butter and oil cakes. Batters with big oven spring — angel food, chiffon, some sponges — want more headroom, and dense batters (brownies, blondies) tolerate fuller pans because they barely rise.

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Frequently Asked Questions

How many cups does a 13x18 half sheet pan hold?

About 13 cups filled to the brim (about 3076 ml / 3.1 liters). Estimate: Joy of Baking doesn't list a 13×18″ half sheet, so this is its 12½×17½×1″ pan (12 cups) scaled up by bake area. For batter, fill to about two-thirds: roughly 8¾ cups, leaving room to rise.

How many quarts does a 13x18 half sheet pan hold?

About 3¼ quarts — 13 cups filled to the brim, since a US quart is exactly 4 cups. That's about 3.1 liters.

How many cups of batter go in a 13x18 half sheet pan?

About 8¾ cups — the standard two-thirds fill. Fuller than that and rising batter can overflow; much less and the bake comes out thin and dries. Cakes with big oven spring (angel food, some sponges) want even more headroom.

What can I substitute for a 13x18 half sheet pan?

No pan in the standard chart matches both its 13-cup capacity and its batter depth. These are within 10% by volume, but not like-for-like: 3"-deep 9" round (batter about 2.0″ deep instead of 0.5″, so it bakes slower); 9×13" rectangle (batter about 1.1″ deep instead of 0.5″, so it bakes slower); 10" Bundt (batter about 1.8″ deep instead of 0.5″, so it bakes slower); 9" tube / angel food (batter about 2.3″ deep instead of 0.5″, so it bakes slower). The pan converter works out the time and temperature change for any pair.

Is the pan's stamped size the inside measurement?

It should be — pan sizes refer to interior top dimensions. Measure inside edge to inside edge, and depth from the interior base to the rim. Outside measurements add the metal's thickness and rolled rims, which overstate the pan.