Conventional Oven
350°F
Celsius
177°C
Heat Level
Moderate
| Food / Use | °F | °C | Gas Mark | Level |
|---|---|---|---|---|
| Meringues | 200 | 93 | — | Very Low |
| Slow Roast | 275 | 135 | 1.0 | Low |
| Casseroles | 325 | 163 | 3.0 | Moderate |
| Cookies | 350 | 177 | 4.0 | Moderate |
| Bread | 375 | 191 | 5.0 | Moderate-Hot |
| Roast Chicken | 400 | 204 | 6.0 | Hot |
| Pizza | 475 | 246 | 9.0 | Very Hot |
| Broil | 500 | 260 | 10.0 | Highest |
| Gas Mark | °F | °C | Description |
|---|---|---|---|
| 1 | 275 | 135 | Low / Slow |
| 2 | 300 | 149 | Low / Slow |
| 3 | 325 | 163 | Moderate |
| 4 | 350 | 177 | Moderate |
| 5 | 375 | 191 | Hot |
| 6 | 400 | 204 | Hot |
| 7 | 425 | 218 | Very Hot |
| 8 | 450 | 232 | Very Hot |
| 9 | 475 | 246 | Extremely Hot |
| 10 | 500 | 260 | Extremely Hot |
| 0.25 | 225 | 107 | Very Low |
| 0.5 | 250 | 121 | Low / Slow |
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Price as of Jul 24, 2026. Product prices and availability are accurate as of the date indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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Result
350°F converts to 177°C (commonly rounded to 175°C or 180°C) and Gas Mark 4. This is the most common baking temperature for cookies, cakes, and muffins.
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Result
200°C equals 392°F conventionally. With convection adjustment (minus 25°F), set your convection oven to 367°F (186°C) for the same cooking result.
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Gas Mark 6 equals 400°F (204°C), which is a hot oven ideal for roasting chicken, vegetables, and finishing baked goods that need a golden crust.
Subtract 32 from the Fahrenheit temperature, then multiply by 5/9. For example, 350°F becomes (350 − 32) × 5/9 = 176.7°C, which rounds to 177°C. Most recipes round to the nearest 5 degrees, so 350°F is commonly listed as 175°C or 180°C.
| °F | °C (exact) | °C (rounded) | Gas Mark |
|---|---|---|---|
| 275°F | 135°C | 140°C | 1 |
| 325°F | 163°C | 160°C | 3 |
| 350°F | 177°C | 175°C | 4 |
| 375°F | 191°C | 190°C | 5 |
| 400°F | 204°C | 200°C | 6 |
| 450°F | 232°C | 230°C | 8 |
Reduce the conventional oven temperature by 25°F (about 14°C). A recipe calling for 350°F in a conventional oven should be set to 325°F in a convection oven. The fan circulates hot air evenly, cooking food about 25% faster. Do not reduce both temperature and time simultaneously.
| Conventional | Convection (temp adjusted) | Use For |
|---|---|---|
| 325°F | 300°F | Slow roasts, casseroles |
| 350°F | 325°F | Cookies, cakes, muffins |
| 375°F | 350°F | Bread, pies |
| 400°F | 375°F | Roast chicken, vegetables |
| 450°F | 425°F | Pizza, high-heat roasting |
Gas Mark is a temperature scale used primarily in British recipes. Gas Mark 1 equals 275°F (135°C) and each increment adds 25°F, so Gas Mark 4 is 350°F (177°C) and Gas Mark 6 is 400°F (204°C). Half-marks exist too: Gas Mark 1/4 is 225°F and Gas Mark 1/2 is 250°F.
Most home ovens are off by 25–50°F from the dial setting. Inexpensive oven thermostats drift over time and can be miscalibrated from the factory. An oven thermometer costs $5–10 and hangs on the rack to show actual air temperature, which often differs significantly from the display.
| Issue | Symptom | Fix |
|---|---|---|
| Oven runs hot | Burnt edges, raw center | Reduce by 10–25°F |
| Oven runs cold | Pale, undercooked | Increase by 10–25°F |
| Uneven heat | One side browns more | Rotate pan at halfway |
| Slow preheat | Food cooks unevenly | Wait full 20 minutes |
Cookies bake best at 350°F (177°C), bread at 375–425°F (190–218°C), roast chicken at 400–25°F (204–18°C), and pizza at 450–500°F (232–260°C). Slow-roasted meats go low at 275–300°F (135–149°C), while broiling uses the highest setting (500°F+ / 260°C+).
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Last Updated: Jul 24, 2026
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