UK Gas Mark 3 = 325°F (165°C / 145°C Fan)
UK Gas Mark 3 equals 325°F and 165°C in a conventional oven or 145°C (300°F) in a fan-assisted convection oven, delivering steady moderate domestic oven heat ideal for baking and roasting slow-baked beef stews and custards and cheesecakes.
Gas Mark 3 equals 325°F or 160°C conventional (140°C fan). Traditional British recipes rely on Gas Mark 3 for long, gentle braises and dense holiday cakes that need slow heat penetration.
Oven Thermal Zone Spectrum325°F • Gas Mark 3 • Moderate
Slow / Low225–300°F • GM ½–2
Moderate Bake325–375°F • GM 3–5
Hot Roast400–450°F • GM 6–8
Pizza / Broil475°F+ • GM 9–10
Conventional °F
325°F
Exact: 325°F
Conventional °C
165°C
Exact: 162.8°C
Convection / Fan
145°C Fan
300°F (−25°F)
UK Gas Mark
Gas Mark 3
Moderate
International Oven Dial & UK Gas Mark Reference
| Static °F | Static °C | Fan °C | Gas Mark | Heat Zone |
|---|---|---|---|---|
| 225°F | 110°C | 90°C Fan | Gas Mark ¼ | Very Cool / Drying & Meringues |
| 250°F | 120°C | 100°C Fan | Gas Mark ½ | Very Slow / Slow Braising |
| 275°F | 140°C | 120°C Fan | Gas Mark 1 | Slow / Custards & Rich Fruitcakes |
| 300°F | 150°C | 130°C Fan | Gas Mark 2 | Slow–Moderate / Casseroles & Shortbread |
| 325°F | 165°C | 145°C Fan | Gas Mark 3 | Moderate / Cheesecakes & Loaf Cakes |
| 350°F | 180°C | 160°C Fan | Gas Mark 4 | Moderate / Everyday Baking, Cookies & Layer Cakes |
| 375°F | 190°C | 170°C Fan | Gas Mark 5 | Moderately Hot / Pies, Muffins & Roasting |
| 400°F | 200°C | 180°C Fan | Gas Mark 6 | Hot / Crispy Roasting, Puff Pastry & Scones |
| 425°F | 220°C | 200°C Fan | Gas Mark 7 | Hot / Artisan Bread, Roasted Veg & Yorkshire Pudding |
| 450°F | 230°C | 210°C Fan | Gas Mark 8 | Very Hot / Hearth Loaves & High-Heat Roasting |
| 475°F | 245°C | 225°C Fan | Gas Mark 9 | Very Hot / Dutch-Oven Sourdough & Skillet Sear |
| 500°F | 260°C | 240°C Fan | Gas Mark 10 | Extremely Hot / Pizza Stone & Flatbreads |
Frequently Asked Questions
What temperature is Gas Mark 3 in Fahrenheit and Celsius? ▾
Gas Mark 3 is exactly 325°F (163°C conventional, 140°C fan-assisted).
What kind of cooking is Gas Mark 3 used for? ▾
Gas Mark 3 is categorized as 'Slow/Moderate-Low' heat, ideal for slow-cooking casseroles, rich fruitcakes, and gentle custard baking.