Gas mark 1/4
110°C · 225°F · 90°C fan
Very cool oven — meringues, slow-drying fruit, keeping food warm.
Gas mark 1/4 in every scale
| Gas mark | 1/4 |
| Fahrenheit | 225°F (exact — gas mark 1/4 is defined as this) |
| Celsius, conventional oven | 110°C (the arithmetic conversion is 107.2°C; recipes round it) |
| Celsius, fan oven | 90°C |
| Fahrenheit, fan oven | 194°F |
| Description | Very cool |
Frequently asked questions
What is gas mark 1/4 in Celsius?
110°C in a conventional oven, or 90°C in a fan oven.
What is gas mark 1/4 in Fahrenheit?
225°F, exactly — gas mark 1/4 is defined as 225°F.
Why is gas mark 1/4 called 110°C when 225°F is 107.2°C?
Because 107.2°C is not a number an oven dial can be set to. Recipes round to the nearest ten, and the rounded figure is the convention everywhere — the 2.8 degree difference is well inside the accuracy of a domestic thermostat.
What is gas mark 1/4 used for?
Very cool — meringues, slow-drying fruit, keeping food warm.
The settings either side
| Gas mark | Fahrenheit | Celsius | Fan / convection | |
|---|---|---|---|---|
| 1/4 | 225°F | 110°C | 90°C fan | Very cool |
| 1/2 | 250°F | 130°C | 110°C fan | Very cool |
The full chart, and why the three scales disagree →
The other gas marks
- Gas mark 1/2 — 130°C, 250°F
- Gas mark 1 — 140°C, 275°F
- Gas mark 2 — 150°C, 300°F
- Gas mark 3 — 170°C, 325°F
- Gas mark 4 — 180°C, 350°F
- Gas mark 5 — 190°C, 375°F
- Gas mark 6 — 200°C, 400°F
- Gas mark 7 — 220°C, 425°F
All oven temperatures · 110°C to °F precisely · Cooking measurements