Converter

Cooking Time Converter

Changed the temperature? Here's how long to cook it instead

Original Recipe

New Temperature

Adjusted Cooking Time
New Cooking Time—
Important: This is an estimate. Always check for doneness 5–10 minutes early. Oven calibration, pan material, and food density all affect actual cooking time. Use a meat thermometer for proteins.

Frequently Asked Questions

The calculator uses a proportional adjustment based on temperature difference. As a general rule, for every 25°F increase, cooking time decreases by roughly 10–15%. This isn't perfectly linear, so always check your food early and use visual or temperature cues for doneness.
Common reasons include cooking multiple dishes at once (they may need the same oven temperature), using a convection oven (typically 25°F lower than conventional), or adjusting for high altitude where baked goods need higher temperatures and shorter times.
Yes — convection ovens generally cook about 25°F hotter than conventional. If your recipe says 350°F conventional, set your convection oven to 325°F, or enter 350 as original and 325 as new temperature in this tool to get the adjusted time.

About the Cooking Time Converter

Sometimes you need to cook at a different temperature than a recipe calls for — maybe you're combining dishes in the oven, switching between conventional and convection, or adapting a recipe for a different appliance. Our Cooking Time Converter calculates the adjusted time when you raise or lower the cooking temperature.

Enter your original temperature and time, choose your new temperature, and the tool estimates how long your dish should cook. Remember that these are starting-point estimates — food density, pan type, and oven accuracy all play a role, so always check for doneness before the timer goes off.