8×8 Square to 9-Inch Round Pan: Multiply Recipe by 0.99×

Multiply every recipe ingredient by 0.99× when converting 8×8-inch Square Baking Pan (2" deep) to 9-inch Round Cake 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.

Reverse (9-Inch Round to 8×8 Square Pan) →

Sample Recipes:

Original Recipe Pan

Your Target Baking Pan

From Pan

8×8-inch Square Baking Pan (2" deep)

64 sq in • 8 cups

Scale Ratio

Target Pan

9-inch Round Cake Pan (2" deep)

63.62 sq in • 8 cups

Pan note (0.99×): Near-exact 1:1 pan swap (0.99×). Keep original recipe oven temperature unchanged. Start checking doneness 3–5 minutes before original minimum bake time.

Paste Ingredient Lines (one per line)

Supports fractions (2 1/2 cups, ¾ cup), metric weights (200g), US butter sticks, and packing notes (packed, sifted, scooped).

Converted Mixing-Bowl Checklist (0.99×)

Estimated matched ingredient weight: 895.5 g (1.97 lb)

Scaled recipe ingredient checklist with gram weights and kitchen cup and spoon measures
Ingredient	Scale Weight	Cup / Spoon Measure
All-Purpose FlourInput: 2 1/4 cups all-purpose flour • spooned & leveled	267.3 g (9.43 oz)	2 cups + 3 tbsp + 2 tsp
Unsalted ButterInput: 1 stick unsalted butter • packed into cup / 2 sticks	112.4 g (3.96 oz)	½ cup
Light Brown SugarInput: 3/4 cup light brown sugar, packed • firmly packed	148.5 g (5.24 oz)	¾ cup
Granulated White SugarInput: 1/2 cup granulated sugar • poured or spooned & leveled	99 g (3.49 oz)	½ cup
2 large eggs	1.98 ×	1.98 large eggs
Pure Vanilla ExtractInput: 2 tsp vanilla extract • Poured liquid	8.6 g (0.3 oz)	2 tsp
Baking Soda / Sodium BicarbonateInput: 1 tsp baking soda • Dip and sweep	4.5 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	252.5 g (8.9 oz)	1 ½ cups

Original vs. Target Pan Dimensions

Original vs. target baking pan dimensions, surface area (sq in), and rim-full cup capacity for 8×8 Square to 9-Inch Round Pan
Pan	Dimensions	Surface Area	Rim-Full Capacity
8×8-inch Square Baking Pan (2" deep)	8" × 8" × 2" H	64 sq in	8 cups
9-inch Round Cake Pan (2" deep)	9" dia × 2" H	63.62 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 8×8-inch Square Baking Pan (2" deep) to 9-inch Round Cake Pan (2" deep)? ▾

Multiply every recipe ingredient by 0.99× (computed via pan surface area: 63.62 sq in ÷ 64 sq in).

Do I need to change oven temperature or bake time for 8×8 Square to 9-Inch Round 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.