QUICK ANSWER
Gas mark 4 = 180°C (160°C fan, 350°F), the usual baking temperature. Gas 5 = 190°C (170°C fan, 375°F), gas 6 = 200°C (180°C fan, 400°F) and gas 7 = 220°C (200°C fan, 425°F). Above gas 1, each mark adds 25°F, roughly 10–15°C.
Convert a gas mark.
Gas mark to Celsius, fan and Fahrenheit.
| Gas mark | Conventional °C | Fan °C | °F | Description |
|---|---|---|---|---|
| Gas ¼ | 110°C | 90°C | 225°F | Very cool |
| Gas ½ | 120°C | 100°C | 250°F | Very cool |
| Gas 1 | 140°C | 120°C | 275°F | Cool |
| Gas 2 | 150°C | 130°C | 300°F | Cool |
| Gas 3 | 160–170°C | 140°C | 325°F | Warm |
| Gas 4 | 180°C | 160°C | 350°F | Moderate |
| Gas 5 | 190°C | 170°C | 375°F | Moderately hot |
| Gas 6 | 200°C | 180°C | 400°F | Hot |
| Gas 7 | 220°C | 200°C | 425°F | Hot |
| Gas 8 | 230°C | 210°C | 450°F | Very hot |
| Gas 9 | 240–250°C | 230°C | 475°F | Very hot |
Conventional °C is the Fahrenheit setting converted and rounded to the nearest 10°C, the way recipes print it. UK recipes round gas 3 to either 160 or 170°C and gas 9 to 240 or 250°C. Fan is 20°C lower than conventional; see the fan oven chart.
What our recipes use.
446 of our recipes give an oven temperature in their directions. The most common are 450°F (gas 8, 192 recipes), 425°F (gas 7, 135 recipes), 400°F (gas 6, 70 recipes). Roasting vegetables and sheet pan dinners happens hot, at gas 7 or 8; 500°F has no gas mark, so use the highest setting your oven has. Browse the sheet pan dinners.
Common questions.
What is gas mark 4 in Celsius?
180°C, or 160°C in a fan oven. It is 350°F.
What is gas mark 6 in Celsius?
200°C, or 180°C fan. It is 400°F.
What is gas mark 5 in a fan oven?
170°C fan (190°C conventional, 375°F).
What is 180°C in gas mark?
Gas mark 4. In a fan oven, 180°C fan is closer to gas 6.
What is 200°C in gas mark?
Gas mark 6 (400°F). 200°C fan is about gas 7.
What is gas mark 7 in Fahrenheit?
425°F, which is 220°C or 200°C fan.
Recipes with the temperature for your oven.
MealPot recipes give every step, so dinner is planned and the shopping is done before you switch the oven on.
Gas marks follow the UK scale: gas ¼ = 225°F, gas ½ = 250°F and gas 1 = 275°F, then 25°F per mark up to gas 9 = 475°F. Celsius is (°F − 32) × 5 ÷ 9. Recipe counts come from the directions in our recipe library, counted on 28 October 2026.
More kitchen references: tablespoons to cups · ounces in a cup · cups to grams · oven temperatures · gas marks · fan oven · butter · ingredient substitutes · kitchen essentials