Convert recipe oven temperatures

The job

A British recipe says gas mark 4; your oven dial says degrees. American recipes say 350°F. The conversions are standard — the tool spells them together with the fan-oven adjustment.

Convert

Enter the temperature and pick its unit — °C, °F, or gas mark from the list. The result gives conventional °C, fan °C, °F, the nearest gas mark, and the wording recipes use ("moderate", "hot"…).

• Fan/convection ovens run about 20 °C cooler for the same browning.
• Gas marks jump in uneven steps of roughly 10–20 °C; values between marks show the nearest one.

Worked example

Gas mark 4 → 180 °C conventional, 160 °C fan, 356 °F, "moderate". A 375 °F recipe reads as 190 °C conventional.

Where it stops

80–300 °C conventional; outside that, the table does not extend. °C values follow the standard rounded table rather than the raw formula. Ovens drift ±10 °C — a separate thermometer settles doubts.