Updated 28 July 2026 · Written by MKB Team
Gas mark oven settings convert directly to Fahrenheit and Celsius. Gas mark 4 is 350 Fahrenheit, or 180 Celsius, the standard baking temperature. Each gas mark step is roughly 25 Fahrenheit, so gas mark 6 is 400 F and gas mark 2 is 300 F.
Gas mark 4 = 350 F = 180 C. Each mark is about 25 F apart: gas mark 6 = 400 F, gas mark 2 = 300 F.
Reading a Gas Mark Oven
British gas ovens use numbered marks instead of degrees. Gas mark 4, at 350 Fahrenheit, is the common baking setting, and each mark up or down changes the temperature by roughly 25 Fahrenheit.
Using a Gas Mark Recipe
If a recipe gives a gas mark and your oven is in degrees, use the chart below to set the equivalent Fahrenheit or Celsius temperature.
Gas Mark Chart
| Gas mark | Fahrenheit | Celsius |
|---|---|---|
| 1 | 275 F | 140 C |
| 2 | 300 F | 150 C |
| 3 | 325 F | 170 C |
| 4 | 350 F | 180 C |
| 5 | 375 F | 190 C |
| 6 | 400 F | 200 C |
| 7 | 425 F | 220 C |
| 8 | 450 F | 230 C |
| 9 | 475 F | 240 C |
Frequently Asked Questions
What is gas mark 4 in Fahrenheit?
Gas mark 4 is 350 Fahrenheit, or 180 Celsius, the standard temperature for most baking.
What gas mark is 200 C?
200 degrees Celsius is gas mark 6, which is 400 Fahrenheit.
