Oven Temperature Reference Chart

Description	°C	°F	Gas Mark
Very Low	135	275	1
Low	150	300	2
Moderate	160	325	3
Moderate (standard)	180	350	4
Moderately Hot	190	375	5
Hot	200	400	6
Hot	220	425	7
Very Hot	230	450	8
Very Hot	240	475	9

Formulas

CELSIUS TO FAHRENHEIT

°F = (°C × 9/5) + 32

FAHRENHEIT TO CELSIUS

°C = (°F − 32) × 5/9

GAS MARK TO CELSIUS (approximate)

°C ≈ (Gas Mark × 14) + 121

FAQ

Gas Mark is a temperature scale used on gas ovens in the UK and Ireland. Gas Mark 1 starts at approximately 135°C (275°F) and each mark increases by about 14°C (25°F).

Yes. Fan/convection ovens circulate hot air and cook more efficiently. As a general rule, reduce the temperature by 20°C (about 25°F) compared to a conventional oven, or reduce the cooking time by about 20%.

180°C / 350°F / Gas Mark 4 is the most commonly used temperature for general baking - cakes, cookies, and muffins. Bread and pastries typically use 200-220°C (400-425°F).