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 |
Inputs
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.
Inputs
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.
Inputs
Result
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: Mar 9, 2026
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