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For gas marks below 1, it moves down to ½ and then a ¼ instead of 0 and -1. This feature is activated so that the display will show the actual converted (reduced). These equations only work for gas marks of 1 or more (because of how the gas mark system was designed). entered regular baking temperatures to convection baking temperatures.For example, if a conventional oven recipe calls for the bread to be baked at 325☏ for 1 hour, then in a convection oven you should cook it at 300☏ for 1 hour. It’s unlikely you’ll get a nice round number from the calculations, so you’ll need to round the result to the nearest degree. For breads, cakes, and other desserts, the rule of thumb for convection oven conversion is to reduce the temperature by 25☏ and keep the time constant.
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That’s no problem! Here are all the equations you need to convert between Celsius, Fahrenheit and gas mark for any other values.īefore you start, there are a few things to note: Need to convert from a temperature that’s not included in the tables? To convert degrees Fahrenheit to degrees Celsius, you will need to subtract 32 to the Fahrenheit temperature, multiply by 5, then divide by 9.
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