Oven Temperature Converter
EverydayConvert oven temperature between Celsius, Fahrenheit, and UK gas mark instantly. Get the right setting for any recipe, whether it's in degrees or gas mark.
Gas Mark 2 — Slow
| Gas Mark | Celsius | Fahrenheit |
|---|---|---|
| 2 | 150°C | 302°F |
Full Oven Temperature Chart
| Gas Mark | °C | °F | Description |
|---|---|---|---|
| 0.25 | 110°C | 230°F | Very Slow |
| 0.5 | 120°C | 248°F | Very Slow |
| 1 | 140°C | 284°F | Slow |
| 2 | 150°C | 302°F | Slow |
| 3 | 170°C | 338°F | Moderate |
| 4 | 180°C | 356°F | Moderate |
| 5 | 190°C | 374°F | Moderate Hot |
| 6 | 200°C | 392°F | Moderately Hot |
| 7 | 220°C | 428°F | Hot |
| 8 | 230°C | 446°F | Hot |
| 9 | 240°C | 464°F | Very Hot |
What is a Oven Temp?
An Oven Temperature Converter translates a cooking temperature between Celsius, Fahrenheit, and UK gas mark — the three scales most commonly printed on recipes and oven dials. Gas mark, in particular, causes confusion for anyone using a recipe from a different country or an older cookbook, since it's a numbered scale (1/4 through 9) rather than a direct temperature reading.
This converter uses the standard UK gas mark reference table to convert accurately in both directions, so a recipe written in gas mark can be followed on a Fahrenheit-only oven, and vice versa. It's a companion to the general-purpose Temperature Converter, built specifically for cooking and baking rather than scientific or weather-related conversions.
How to use this Oven Temp calculator
- Find the temperature stated in your recipe — it may be written as a gas mark number, or in °C or °F.
- Select the matching unit in the From dropdown — UK Gas Mark, Celsius, or Fahrenheit.
- Enter the value from your recipe.
- Select the scale your own oven uses in the To dropdown.
- Read the converted temperature and set your oven accordingly.
- Use the swap (⇅) button if you need to convert in the opposite direction for a future recipe.
Formula & Methodology
Celsius and Fahrenheit convert using the standard formula: °F = (°C × 9⁄5) + 32 Gas mark does not follow a single linear formula across its full range, so the converter maps values against the standard UK reference table: | Gas Mark | °C | °F | |---|---|---| | 1/4 | 110 | 225 | | 1/2 | 120 | 250 | | 1 | 140 | 275 | | 2 | 150 | 300 | | 3 | 170 | 325 | | 4 | 180 | 350 | | 5 | 190 | 375 | | 6 | 200 | 400 | | 7 | 220 | 425 | | 8 | 230 | 450 | | 9 | 240 | 475 | Worked example: A recipe calling for gas mark 5 converts to 190°C, which is 375°F using the standard formula above.
Frequently Asked Questions
Gas mark is a numbered scale (typically 1/4 through 9) used on older and UK-style gas ovens to indicate temperature, instead of a direct Celsius or Fahrenheit reading. It originated from the dial settings on early gas cookers and is still printed on many UK recipes and oven dials today.
Gas mark 4 corresponds to 180°C or 350°F, one of the most common baking temperatures used for cakes and general oven cooking. This converter handles every standard gas mark from 1/4 up to 9 in both directions.
Select Celsius as the From unit and UK Gas Mark as the To unit, then enter your recipe's stated temperature. The converter matches it against the standard UK gas mark reference table and returns the equivalent gas mark setting.
Roughly, yes, for the most common range — many gas marks sit close to (Fahrenheit − 25) ÷ 25, but the relationship isn't perfectly uniform across the full scale. This converter uses the official reference table rather than an approximation formula, so results stay accurate even at the lower and higher ends of the scale.
The [Temperature Converter](/temperature-converter/) handles general-purpose conversions between Celsius, Fahrenheit, Kelvin, and other scientific scales. This Oven Temperature Converter is purpose-built for cooking, adding UK gas mark — a scale the general temperature converter doesn't include — alongside Celsius and Fahrenheit.
UK recipes traditionally use gas mark because older British gas ovens were calibrated with numbered dials rather than a temperature readout, while US recipes almost always use Fahrenheit. Modern UK ovens often show all three scales on the dial, but printed recipes still vary depending on the source.
Gas mark 6 is 200°C or 400°F, a common setting for roasting vegetables and meats that need a hotter oven than standard baking. Many UK roasting recipes specify gas mark 6 or 7 depending on how much browning is wanted.
This converter gives the standard (non-fan) oven temperature for each gas mark, Celsius, or Fahrenheit value. If your oven is fan-assisted, most manufacturers recommend reducing the converted temperature by about 20°C (or roughly one gas mark), so check your oven's manual for its specific guidance.
The converter covers the full standard range from gas mark 1/4 (110°C / 225°F), used for very low slow-cooking temperatures, up to gas mark 9 (240°C / 475°F), used for high-heat baking and pizza ovens.
Yes — this is exactly the use case it's built for. Enter the temperature exactly as printed in your recipe (whether it's a gas mark number, Celsius, or Fahrenheit value) and convert it to whatever scale your oven uses.
Also known as