This oven temperature conversion chart covers Fahrenheit, Celsius, fan-oven Celsius and gas marks. The most common conversions: 350°F = 180°C = gas mark 4, 375°F = 190°C = gas mark 5 and 400°F = 200°C = gas mark 6. For a fan (convection) oven, use about 20°C (25°F) lower. Use the converter for any temperature.
Oven Temperature Converter
Enter a temperature from your recipe to see every equivalent.
- Oven temperature conversion chart
- How to convert by hand
- Fan, convection and air fryer conversions
- Old recipe terms: slow, moderate, hot
- Common recipe temperatures
- Very low and very high temperatures
- How countries list oven temperatures
- What are gas marks?
- Celsius to Fahrenheit quick list
- Is your oven accurate?
- Tips for converting recipes
- FAQs
Oven Temperature Conversion Chart
Celsius values are rounded to the nearest 10°C, which is how most recipes and oven dials list them. "Fan °C" is the usual setting for a fan or convection oven in UK, European and Australian recipes.
Exact conversions: 325°F is about 163°C and 350°F is about 177°C, so you'll sometimes see 170°C or 175°C in recipes. These small differences rarely matter in home baking.
How to Convert by Hand
Fahrenheit to Celsius
Subtract 32, multiply by 5, divide by 9
Example: 350°F → (350 − 32) × 5 ÷ 9 = 177°C, usually rounded to 180°C.
Celsius to Fahrenheit
Multiply by 9, divide by 5, add 32
Example: 200°C → 200 × 9 ÷ 5 + 32 = 392°F, usually rounded to 400°F.
Fan oven shortcut
Conventional °C minus 20
Example: a recipe at 200°C conventional becomes about 180°C in a fan oven.
Gas mark to °F
Between gas marks 1 and 9
Each gas mark step is about 25°F. Gas mark 1 is 275°F, and each mark above adds about 25°F (gas mark 4 = 350°F).
Fan, Convection and Air Fryer Conversions
Fan and convection ovens move hot air around the food, so they cook faster. The standard adjustments:
| Recipe written for | You're using | Adjust |
|---|---|---|
| Conventional oven | Fan / convection oven | Lower by about 25°F (20°C) |
| Fan oven (UK/EU/AU recipe) | Conventional oven | Raise by about 20°C (25°F) |
| Conventional oven | Air fryer or air fryer oven | Lower by about 25°F and cut time about 20%; check early |
| Oven recipe with "auto convert" oven | Convection bake | Don't lower it yourself; the oven already does |
For a full convection guide, see how to use a convection oven and convection bake vs bake.
Old Recipe Terms: Slow, Moderate, Hot
Older recipes and cookbooks often describe the oven instead of giving a number. Here's what those terms usually mean:
| Recipe says | °F | °C | Gas mark |
|---|---|---|---|
| Very slow / very cool | 225–250°F | 110–120°C | ¼–½ |
| Slow / cool | 275–300°F | 140–150°C | 1–2 |
| Moderately slow / warm | 325°F | 160°C | 3 |
| Moderate | 350°F | 180°C | 4 |
| Moderately hot | 375°F | 190°C | 5 |
| Hot | 400–425°F | 200–220°C | 6–7 |
| Very hot | 450–475°F | 230–240°C | 8–9 |
Common Recipe Temperatures
| Food | Typical temperature | Celsius |
|---|---|---|
| Slow-roasted pork, ribs | 275–300°F | 140–150°C |
| Cheesecake, custards | 300–325°F | 150–160°C |
| Turkey and large roasts | 325°F | 160°C |
| Cakes, brownies, most cookies | 350°F | 180°C |
| Muffins, quick breads | 350–375°F | 180–190°C |
| Casseroles | 350–375°F | 180–190°C |
| Roast chicken | 400–425°F | 200–220°C |
| Roasted vegetables, potatoes | 400–425°F | 200–220°C |
| Bread (crusty loaves) | 450–475°F | 230–240°C |
| Pizza in a home oven | 475–500°F+ | 240–260°C+ |
Cooking meat? Go by internal temperature, not just oven temperature. Our leave-in meat thermometer guide includes a USDA doneness chart.
Very Low and Very High Temperatures
- Warm and proof settings (about 85–170°F / 30–75°C) are for proofing dough and keeping food warm, not cooking. See oven symbols and settings.
- Dehydrating usually runs at about 135–170°F (55–75°C), the low end of many ovens.
- Broiling doesn't use a set temperature on most ovens; the top element runs at full power. It's often compared to about 500–550°F.
- Pizza ovens run far hotter than home ovens, often 700–950°F (370–510°C). See the best outdoor pizza ovens.
How Different Countries List Oven Temperatures
| Where the recipe is from | Usually lists | What to watch for |
|---|---|---|
| United States | °F, conventional oven | Lower about 25°F for convection |
| United Kingdom | °C conventional and fan, often gas mark | Use the fan figure for a fan oven |
| Europe | °C, often fan ("circulating air") | Check whether the °C is fan or conventional |
| Australia and New Zealand | °C, often with a fan note | Many recipes say "fan-forced": lower 20°C if not stated |
| Canada | °F and °C | Usually conventional oven |
What Are Gas Marks?
Gas marks are a temperature scale used on gas ovens in the UK and Ireland. The scale runs from gas mark ¼ (very cool, about 225°F/110°C) to gas mark 9 or 10 (very hot, about 475–500°F/240–260°C). Between gas marks 1 and 9, each step is about 25°F (roughly 10–15°C). Many modern UK recipes still list gas marks alongside Celsius, so they're worth knowing even if you cook on an electric oven.
Celsius to Fahrenheit Quick List
| °C | °F (exact) | °F (recipe) |
|---|---|---|
| 100°C | 212°F | 200–225°F |
| 120°C | 248°F | 250°F |
| 150°C | 302°F | 300°F |
| 160°C | 320°F | 325°F |
| 170°C | 338°F | 325–350°F |
| 180°C | 356°F | 350°F |
| 190°C | 374°F | 375°F |
| 200°C | 392°F | 400°F |
| 220°C | 428°F | 425°F |
| 230°C | 446°F | 450°F |
| 250°C | 482°F | 475–500°F |
Is Your Oven Accurate?
A perfect conversion doesn't help if your oven runs hot or cold. Many ovens drift 10–25°F over time. Put an oven thermometer in the center, preheat to 350°F, and check after 20 minutes. If it's off, use your oven's calibration setting or adjust your settings. Our oven temperature test guide walks you through it.
Tips for Converting Recipes
- Check whether the recipe is "fan" or "conventional"UK and Australian recipes often list fan temperatures first.
- Round to your oven's dialMost ovens adjust in 5°F or 5–10°C steps; rounding by a few degrees is fine.
- Watch dark pansDark or glass pans brown faster; many bakers lower the temperature about 25°F for glass dishes.
- Check early after convertingStart checking 5–10 minutes before the recipe's time.
- Mind altitudeAt high altitude, many baking recipes call for a slightly higher oven temperature and recipe changes. Follow a high-altitude version if possible.
Oven Temperature Conversion FAQs
What is 350°F in Celsius?
350°F is about 177°C, usually rounded to 180°C (gas mark 4). In a fan oven, use about 160°C.
What is 180°C in Fahrenheit?
180°C is about 356°F, usually written as 350°F (gas mark 4).
What is 200°C in Fahrenheit?
200°C is about 392°F, usually rounded to 400°F (gas mark 6). For a fan oven, use about 180°C.
What is gas mark 4 in Fahrenheit?
Gas mark 4 is 350°F, or about 180°C.
What is 400°F in a fan oven?
400°F is about 200°C conventional, so use about 180°C in a fan oven, or about 375°F on a convection setting.
How do I convert a recipe for a fan oven?
Lower the conventional temperature by about 20°C (25°F) and check the food a little early.
What is 325°F in Celsius?
325°F is about 163°C, usually written as 160°C or 170°C (gas mark 3).
What is 425°F in Celsius?
425°F is about 218°C, usually rounded to 220°C (gas mark 7).
What does "moderate oven" mean?
A moderate oven is about 350°F (180°C, gas mark 4).
How do I convert oven temperature for an air fryer?
Lower the oven temperature by about 25°F and reduce the time by about 20%, then check early and shake or turn the food halfway.
The Bottom Line
Remember three anchors: 350°F = 180°C = gas mark 4, 375°F = 190°C = gas mark 5, and 400°F = 200°C = gas mark 6. Lower about 20°C (25°F) for fan ovens, check food early after converting, and confirm your oven's real temperature with a thermometer.
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