🌡️ Oven Temperature Converter (°F, °C, Gas Mark)
Convert an oven temperature between °Fahrenheit, °Celsius and gas mark, and get the fan-oven setting — so a recipe written for any oven works on yours.
Fahrenheit
350 °F
Celsius
180 °C
Gas mark
4
Fan / convection
160 °C
Moderate oven — nearest standard setting (exact maths: 175 °C)
Full conversion table
| Gas | °F | °C | Description |
|---|---|---|---|
| 0.25 | 225 | 110 | Very cool / very slow |
| 0.5 | 250 | 120 | Very cool / very slow |
| 1 | 275 | 140 | Cool / slow |
| 2 | 300 | 150 | Cool / slow |
| 3 | 325 | 160 | Warm / moderately slow |
| 4 | 350 | 180 | Moderate |
| 5 | 375 | 190 | Moderately hot |
| 6 | 400 | 200 | Moderately hot |
| 7 | 425 | 220 | Hot |
| 8 | 450 | 230 | Hot |
| 9 | 475 | 240 | Very hot |
°C = (°F − 32) × 5⁄9 (exact); gas marks and descriptions are the conventional UK values, rounded to practical oven settings. Fan (convection) ovens run about 20 °C cooler — drop the temperature or shorten the time. 🔒 In your browser.
How the oven temperature converter (°f, °c, gas mark) works
Fahrenheit and Celsius convert exactly with °C = (°F − 32) × 5⁄9. Gas marks map to the conventional cooking equivalents (gas mark 4 = 350 °F = 180 °C), which are rounded to practical oven settings rather than exact maths. For fan (convection) ovens, the tool subtracts about 20 °C, the standard adjustment.
These are the standard UK cooking equivalents, so the Celsius values are rounded to tidy oven settings (gas mark 4 is written as 180 °C, though 350 °F is mathematically 176.7 °C). Fan ovens run hotter for the same dial setting, so reduce the temperature by ~20 °C or shorten the time.
Frequently asked questions
What is 350°F in Celsius and gas mark?
350 °F is 180 °C and gas mark 4 — the most common baking temperature, described as a “moderate” oven. For a fan oven, use about 160 °C.
What gas mark is 200°C?
200 °C is gas mark 6 (400 °F), a “moderately hot” oven used for roasting and many breads.
How do I convert Fahrenheit to Celsius exactly?
Subtract 32 and multiply by 5/9: °C = (°F − 32) × 5⁄9. So 425 °F = (425 − 32) × 5⁄9 = 218.3 °C, rounded to 220 °C for oven use.
How much cooler should a fan oven be?
About 20 °C lower than a conventional oven for the same result — a fan circulates hot air, so it cooks faster and more evenly. Some recipes suggest reducing time instead of temperature.
Why don’t the Celsius and Fahrenheit values match exactly?
Because oven dials use rounded, practical settings. 350 °F is 176.7 °C mathematically, but ovens and recipes use the tidy 180 °C. The gas mark table follows these conventional cooking equivalents.