Oven temperature and pan size converter

Convert oven temperatures between °C, °F, fan oven and gas mark, and work out how much to scale a recipe for a different round, square or rectangular pan.

Обновлено 28 сентября 2026 г.Проверенные примеры: 9

Conventional oven

°C

Максимум знаков после запятой: 1; До ближайшего, при равенстве — от нуля

Conventional oven: 350°F
Fan oven: 156.7°C
Gas mark: 4

Fan ovens vary; Which? puts the usual reduction at about 20 °C, and your oven's manual gives the figure for that model.

350 °F is 177 °C in a conventional oven, 157 °C in a fan oven, and gas mark 4.

Oven heat (°C, conventional)

Как выполняется расчёт S

градус Фаренгейта → градус Цельсия
$(350 - 32) \times \tfrac{5}{9} = 176.67\,^\circ\text{C}$
Fan oven
$176.67 - 20 = 156.67\,^\circ\text{C}$
Nearest gas mark
350 °F is closest to gas mark 4 (350 °F).

О калькуляторе: Oven temperature and pan size converter

Oven temperatures convert with °F = °C × 9/5 + 32. A fan oven is set about 20 °C below a conventional one, and gas mark 1 is 275 °F (140 °C), with each mark adding 25 °F. For pans, the ingredient factor is the area of your pan divided by the area of the recipe's pan, which keeps the batter at the same depth.

The default converts 350 °F: 176.7 °C, which recipes round to 180 °C, or 156.7 °C in a fan oven (usually written 160 °C), and gas mark 4. In pan mode, a 9-inch round pan (63.6 sq in) and an 8-inch square pan (64 sq in) hold almost the same amount, a factor of 1.006.

Oven thermostats and fans vary, so treat the converted setting as a starting point. When batter ends up deeper or shallower than the recipe intended, check for doneness early.

Примеры с решением

350 °F → °C

Перевод единиц: Oven temperature
Oven setting: 350
Setting is in: °F
Convert to: °C

Conventional oven: 176.7 °C
Fan oven: 156.7 °C
Gas mark: 4

Источник проверки: Python decimal: (350 − 32) × 5/9; gas mark 4 = 350 °F (gas mark table)

180 °C → °F

Перевод единиц: Oven temperature
Oven setting: 180
Setting is in: °C
Convert to: °F

Conventional oven: 356 °F
Gas mark: 4

Источник проверки: 180 × 9/5 + 32 = 356; nearest mark is 4 (350 °F)

Gas mark 1/4

Перевод единиц: Oven temperature
Oven setting: 1/4
Setting is in: Gas mark
Convert to: °C

Conventional oven: 107.2 °C
Conventional oven: 225 °F

Источник проверки: Gas mark table: 1/4 = 225 °F; Python decimal (225 − 32) × 5/9

Fan 160 °C to °F

Перевод единиц: Oven temperature
Oven setting: 160
Setting is in: Fan °C
Convert to: °F

Conventional oven: 356 °F
Conventional oven: 180 °C

Источник проверки: Which? rule: fan + 20 = 180 °C conventional; 180 × 9/5 + 32

Вопросы

What is 180 °C in Fahrenheit?

356 °F, from 180 × 9/5 + 32. Recipes round it to 350 °F, which is gas mark 4, and the Which? oven conversion table puts 180 °C, 160 °C fan, 350 °F and gas mark 4 on the same row. Going the other way, 350 °F is exactly 176.7 °C.

How much lower should a fan oven be?

About 20 °C lower than the conventional temperature, according to Which?, so 180 °C becomes 160 °C fan and 200 °C becomes 180 °C fan. The fan moves hot air over the food, and leaving the setting unchanged can cook the outside too quickly. Oven makers' manuals give the figure for a specific model.

What temperature is gas mark 4?

180 °C (350 °F), or 160 °C in a fan oven. Gas mark 1 is 140 °C (275 °F) and each mark adds 25 °F, about 14 °C: gas 6 is 200 °C (400 °F) and gas 9 is 240 °C (475 °F), as listed in the Which? table. The Celsius values are rounded to the nearest 10 °C.

Can I use an 8-inch square pan instead of a 9-inch round one?

Yes. A 9-inch round pan has an area of π × 4.5² = 63.6 square inches and an 8-inch square pan has 64, so the recipe needs no change. A 9 × 13 inch pan has 117 square inches, 1.84 times the 9-inch round, so batter for the rectangle fills nearly two round pans to the same depth.

How do you adjust a recipe for a different cake tin?

Multiply every ingredient by the new tin's area divided by the old tin's area. For round tins that is the ratio of the diameters squared: moving from a 20 cm to a 23 cm tin is (23 ÷ 20)² = 1.32, so use about a third more of everything. The batter then sits at the same depth, so the baking time stays close to the original.

Насколько точен «Oven temperature and pan size converter»?

Точность зависит от введённых данных и допущений метода. Десятичная арифметика использует 50 значащих цифр, но оценки, численные методы и исходные данные могут быть менее точными; округление на экране не устраняет эти ограничения. Решённые примеры, проверенные по независимым источникам: 9. Например, «350 °F → °C» проверяется по источнику Python decimal: (350 − 32) × 5/9; gas mark 4 = 350 °F (gas mark table).

Откуда взята методика?

Gas mark — conversion table (1 = 275 °F, +25 °F per mark); Which? — Oven temperature conversion table (fan ovens 20 °C lower).

Об этом калькуляторе

\begin{gathered}{}^\circ F = {}^\circ C \times \tfrac{9}{5} + 32 \\ \text{fan} = {}^\circ C - 20 \\ \text{pan factor} = \frac{A_{\text{your pan}}}{A_{\text{recipe pan}}}\end{gathered}

Источники

Проверено по источникам

В калькулятор включены решённые примеры с ответами из независимых источников. Их количество: 9. Они входят в набор тестов, и вы также можете запустить их здесь.