Oven temperatures

170 °C to Fahrenheit

338°F

Exact conversion

325°F

Set your oven to this

No oven dial has a 338 °F mark. Recipes treat 170 °C and 325 °F as the same setting — gas mark 3 — and the gap between them is smaller than the swing of a domestic thermostat. Set a fan-forced oven to 150 °C.

170 °C is the temperature for sponge cakes that need a long even rise, for custard tarts and for slow-roasted joints. It is gentle enough to avoid a domed, cracked top but hot enough to set a batter in reasonable time.

Quick reference

170 °C conversion table

Exact conversion338 °F
Oven dial setting325 °F
Fan-forced (convection)150 °C
Gas mark3 — moderate

Converter

Convert any oven temperature

Quick converter

Convert cups, grams, millilitres and oven temperatures — instantly, right here.

= 356 °F

Questions

Frequently asked questions

What is 170 °C in Fahrenheit?
170 °C is exactly 338 °F. As an oven setting, use 325 °F — the dial mark recipes mean, which is gas mark 3. In a fan oven, set 150 °C.
What is 170 °C in Fahrenheit?
Exactly 338 °F. As an oven setting, use 340 °F if your dial allows it, or 325 °F for a slightly gentler bake and 350 °F for a slightly faster one.
What is 170 °C in a fan oven?
Set a fan oven to 150 °C.
Why does 170 °C not match a standard US oven mark?
US ovens are marked in 25 °F steps, and 170 °C lands at 338 °F — between the 325 °F and 350 °F marks. Most converted recipes round up to 350 °F and shorten the bake slightly.

More conversions

Convert a specific oven temperature

Each page gives the exact conversion, the setting to actually turn the dial to, the gas mark and the fan-oven equivalent.

← Full oven temperature conversion chart