General

Oven Temperature Converter

Switch between Fahrenheit, Celsius, fan-assisted Celsius, and British Gas Mark in one tap.

Temperature

Unit

Common cooking temps

Tap a preset to load it as °F.

Converted temperature

—

Enter a temperature to see the conversion.

What does this convert?

This tool converts between the four oven temperature scales you'll see in recipes from around the world: °F (United States), °C (most of the world, conventional ovens), °C fan (Europe and the UK, for fan-assisted/convection ovens — typically 20°C lower than conventional), and Gas Mark (older British recipes, with marks from 1/4 to 10).

How to use it

Type the temperature your recipe specifies and pick the unit. The other three values update instantly. If your oven is a fan/convection model and the recipe is in conventional °C, drop the temperature by about 20°C — that's already the °C fan output. The presets are the five temperatures you'll see in 80% of US baking recipes.

Formulas

°F → °C: (°F − 32) × 5⁄9. °C → °F: °C × 9⁄5 + 32. °C fan ≈ °C − 20 for the same browning effect. Gas Mark increases by 25°F per whole mark, with Mark 1 = 275°F. Mark 1/4 = 225°F and Mark 1/2 = 250°F are the low end.

Oven temperature chart

A quick reference for the most common baking and roasting temperatures.

Description	°F	°C	°C fan	Gas Mark
Very cool	225	110	90	1/4
Cool	275	140	120	1
Warm	325	165	145	3
Moderate	350	175	160	4
Moderately hot	375	190	170	5
Hot	400	200	180	6
Very hot	425	220	200	7
Hottest	475	245	225	9

Frequently asked questions

Is the °C fan offset always exactly 20°C?

It's a convention, not a law. Most manufacturers recommend reducing the conventional °C by 15–25°C; 20°C is the most common rule of thumb. Old fan ovens or very small ones may need only 10°C off.

What's a Gas Mark?

British gas ovens used numbered marks instead of degrees. Mark 1 ≈ 275°F (140°C), and each whole mark adds about 25°F (14°C). Mark 4 ≈ 350°F is the standard moderate oven.

Should I lower the temperature when using a fan oven?

Yes — fan ovens cook faster and brown more aggressively. If a recipe says 180°C conventional, set 160°C on a fan oven. Roasts and delicate bakes (custards, soufflés) benefit the most from this adjustment.

Why are some recipes so specific (like 232°C)?

Those numbers are usually translated from a round °F value (450°F = 232°C). Round to the nearest 5°C — your oven's thermostat isn't accurate to the degree anyway.

Do US and UK 'cups' affect oven temperature?

No, only ingredient amounts. Temperatures are the same physical quantity — only the scale differs.

Why does my oven run cold?

Most home ovens are off by 10–25°F from their dial. An oven thermometer is a $10 fix. If you bake often, calibrate or adjust your set point accordingly.

Oven Temperature Converter