How Do I Convert a 9x13 Recipe to an 8x8 Pan?
Convert a 9x13-inch recipe to an 8x8 pan. Calculate the pan area difference and automatically scale recipe ingredients.
9" × 13" rectangular → 8" × 8" square
approximately 55%
Use approximately 55% of the original recipe so the batter depth stays the same. Baking time may need a slight adjustment.
Common pan sizes
| 8" × 8" square | 64 in² |
| 9" × 9" square | 81 in² |
| 9" × 13" rectangular | 117 in² |
| 11" × 7" rectangular | 77 in² |
| 8" round | 50.3 in² |
| 9" round | 63.6 in² |
| 10" round | 78.5 in² |
| 9" springform | 63.6 in² |
| 10" springform | 78.5 in² |
| 13" × 9" × 2" rectangular | 117 in² |
Conversion Summary
9" × 13" rectangular=117 in²=8" × 8" square=64 in²=55% Scaling percentage=× 0.55
How it works
A 9x13 pan has 117 square inches of area (9 × 13), and an 8x8 pan has 64 square inches (8 × 8). The ratio is 64 ÷ 117 ≈ 0.547, so use approximately 55% of the original recipe. Baking depth can change depending on pan shape and batter volume, so baking time may require adjustment.
Conversion Table
| Original pan | 9" × 13" rectangular |
| Original area | 117 in² |
| New pan | 8" × 8" square |
| New area | 64 in² |
| Scaling percentage | 55% |
| Scaling multiplier | × 0.55 |
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