Half sheet 33 × 46 cm / 13 × 18 in tin
1,518 cm² · 3.8 litres
33 × 46 cm · 235.3 in² · 25 mm deep · rectangular
About this tin
The American half sheet pan, and the largest tray that fits most domestic ovens. It is the standard for sheet-pan dinners and for baking several trays of biscuits at once.
The numbers
| Dimensions | 33 × 46 cm · 13.0 × 18.1 in |
| Depth | 25 mm · 1.0 in |
| Base area | 1,518 cm² · 235.3 in² |
| Volume to the rim | 3.8 litres |
| Usable batter | about 2.3 litres — filled to roughly two thirds |
Frequently asked questions
What is the area of a Half sheet 33 × 46 cm / 13 × 18 in tin?
1,518 cm² (235.3 in²), holding roughly 3.8 litres filled to 25 mm.
What can I substitute for a Half sheet 33 × 46 cm / 13 × 18 in?
Nothing in this list is within a third of its area, so a recipe written for it needs the quantity scaled rather than the tin swapped.
How much does a Half sheet 33 × 46 cm / 13 × 18 in tin hold?
About 3.8 litres to a depth of 25 mm. Cake batter is normally filled to between half and two thirds, so 2.3 litres of mixture is a working figure.
Why does tin size change the baking time?
Because a recipe is written for a depth, not a name. Heat reaches the centre of a shallow cake sooner, so the same mixture in a wider tin is done earlier and browns more at the edges. The area ratio tells you how much shallower: divide the two areas and the depth changes by the inverse.
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