Food & Cooking Calculators

Free cooking calculators: convert oven recipes for your air fryer, scale cakes to a different tin and get roasting times right.

  • Calculators4
  • Rules and figuresUK, November 2026
  • CostFree, no sign-up

Food & cooking calculators

What each calculator does

CalculatorWhat it works out
Air fryer calculatorConvert oven temperatures and times to air fryer settings.
Cake calculatorScale a cake recipe to a different tin size or shape.
Buttercream calculatorHow much buttercream to fill and cover your cake.
Turkey cooking timeRoasting time by weight, resting time and when to put it in.

Using these calculators

Always check food is cooked through. Poultry and minced meat should be steaming hot with no pink meat and clear juices.

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