Cooking Time & Temperature Converter
Convert oven temperatures between Fahrenheit, Celsius, and gas mark, and adjust cooking times for different pan sizes.
177°C
Celsius
Gas 4
Gas mark
Adjust time for a different pan size
Adjusted time: 30 min
Rule of thumb: a larger/shallower pan often needs ~0.75× the time; a smaller/deeper pan often needs ~1.25×.
How the Cooking Time & Temperature Converter works
Enter an oven temperature in Fahrenheit to see the Celsius and gas mark equivalents, and use the time adjustment section to scale a recipe's cook time for a different pan size.
Frequently asked questions
What is a gas mark?
Gas mark is a temperature scale used mainly in the UK for gas ovens, roughly corresponding to specific Fahrenheit and Celsius values.
How much should I adjust time for a different pan?
A larger, shallower pan often needs about 75% of the original time, while a smaller, deeper pan often needs about 125% — check for doneness rather than relying on time alone.