9-Inch Round to 8×8 Square Pan: Multiply Recipe by 1.01×
Multiply every recipe ingredient by 1.01× when converting 9-inch Round Cake Pan (2" deep) to 8×8-inch Square Baking Pan (2" deep) (8 cups vs. 8 cups capacity). Keep original recipe oven temperature unchanged. Start checking doneness 3–5 minutes before original minimum bake time.
Pan note (1.01×): Near-exact 1:1 pan swap (1.01×). Keep original recipe oven temperature unchanged. Start checking doneness 3–5 minutes before original minimum bake time.
Supports fractions (2 1/2 cups, ¾ cup), metric weights (200g), US butter sticks, and packing notes (packed, sifted, scooped).
Converted Mixing-Bowl Checklist (1.01×)
Estimated matched ingredient weight: 913.6 g (2.01 lb)
| ✓ | Ingredient | Scale Weight | Cup / Spoon Measure |
|---|---|---|---|
All-Purpose FlourInput: 2 1/4 cups all-purpose flour • spooned & leveled | 272.7 g (9.62 oz) | 2 ¼ cups + 1 tsp | |
Unsalted ButterInput: 1 stick unsalted butter • packed into cup / 2 sticks | 114.6 g (4.04 oz) | ½ cup | |
Light Brown SugarInput: 3/4 cup light brown sugar, packed • firmly packed | 151.5 g (5.34 oz) | ¾ cup | |
Granulated White SugarInput: 1/2 cup granulated sugar • poured or spooned & leveled | 101 g (3.56 oz) | ½ cup | |
2 large eggs | 2.02 × | 2.02 large eggs | |
Pure Vanilla ExtractInput: 2 tsp vanilla extract • Poured liquid | 8.8 g (0.31 oz) | 2 tsp | |
Baking Soda / Sodium BicarbonateInput: 1 tsp baking soda • Dip and sweep | 4.6 g (0.16 oz) | 1 tsp | |
Diamond Crystal Kosher SaltInput: 1 tsp diamond crystal kosher salt • Pour and level | 2.8 g (0.1 oz) | 1 tsp | |
Semisweet Chocolate ChipsInput: 1 1/2 cups semisweet chocolate chips • Dip and sweep | 257.6 g (9.08 oz) | 1 ½ cups |
Original vs. Target Pan Dimensions
| Pan | Dimensions | Surface Area | Rim-Full Capacity |
|---|---|---|---|
| 9-inch Round Cake Pan (2" deep) | 9" dia × 2" H | 63.62 sq in | 8 cups |
| 8×8-inch Square Baking Pan (2" deep) | 8" × 8" × 2" H | 64 sq in | 8 cups |
Batter depth rule: Fill cake, brownie, and quick-bread pans between ½ and ⅔ full so batter rises evenly without doming. For dark nonstick or glass bakeware, reduce oven temperature by 25°F (15°C).
Frequently Asked Questions
What is the exact multiplier to convert 9-inch Round Cake Pan (2" deep) to 8×8-inch Square Baking Pan (2" deep)? ▾
Multiply every recipe ingredient by 1.01× (computed via pan surface area: 64 sq in ÷ 63.62 sq in).
Do I need to change oven temperature or bake time for 9-Inch Round to 8×8 Square Pan? ▾
Keep original recipe oven temperature unchanged. Start checking doneness 3–5 minutes before original minimum bake time. Always fill cake and quick-bread pans between ½ and ⅔ full so batter rises evenly without overflowing.