Oven temperatures

275 °F to Celsius

135°C

Exact conversion

140°C

Set your oven to this

No oven dial has a 135 °C mark. Recipes treat 275 °F and 140 °C as the same setting — gas mark 1 — and the gap between them is smaller than the swing of a domestic thermostat. Set a fan-forced oven to 120 °C.

275 °F is a cool oven for very slow cooking — overnight brisket, confit, slow-dried tomatoes and rich fruit cakes that need hours at low heat. On a metric oven it is 140 °C.

Quick reference

275 °F conversion table

Exact conversion135 °C
Oven dial setting140 °C
Fan-forced (convection)120 °C
Gas mark1 — cool

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= 356 °F

Questions

Frequently asked questions

What is 275 °F in Celsius?
275 °F is exactly 135 °C. As an oven setting, use 140 °C — the dial mark recipes mean, which is gas mark 1. In a fan oven, set 120 °C.
Is 275 °F the same as 140 °C?
As an oven setting, yes — the exact conversion is 135 °C, and 140 °C is the standard metric dial equivalent.
What gas mark is 275 °F?
Gas mark 1.

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