Oven Fan Conversion

Convert conventional and fan-forced oven temperatures.

Inputs

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Formula

T_fan ≈ T_conv − 20°C

Convection moves heat faster, so fan baking typically uses ~20°C lower than a conventional recipe temperature.

Worked example

180°C conventional ≈ 160°C fan — check browning 5–10 min early.

Where this can give the wrong answer

  • Ovens vary — treat as starting point.
  • Some recipes specify fan already; do not double-convert.
  • Fahrenheit recipes need °C conversion first.

FAQ

Forced air transfers heat more efficiently to the food surface.