# Air Fryer Calculator (Oven to Air Fryer Conversion)

URL: https://speedycalculator.com/calculators/food/air-fryer/
Last updated: 2026-10-30

> The air fryer calculator converts an oven recipe to air fryer settings – lowering the temperature by 25 °F (about 15 °C) and cutting the cooking time by about 20% – with an earlier time to start checking and an adjustment for frozen food.

## Inputs

- Temperature unit
- Oven recipe temperature
- Oven cooking time (min, h, s)
- Food is frozen?
- Recipe is for a fan (convection) oven?

## Results

- Air fryer temperature
- Air fryer cooking time
- Start checking at
- Air fryer temperature in the other unit
- Shake or flip

## Formula

```
Air fryer temperature = oven temperature − 25 °F (− 15 °C)
Air fryer time = oven time × 0.8
First check ≈ air fryer time × 0.75
```

## Explanation

An air fryer is a small convection oven: a powerful fan moves hot air around the food, so it browns and cooks faster than a conventional oven. Air fryers vary, so treat the result as a starting point and check early – especially the first time you cook a dish.

### How to use the Air Fryer Calculator

- **Temperature unit**
- **Oven recipe temperature**
- **Oven cooking time**
- **Food is frozen?**
- **Recipe is for a fan (convection) oven?**

Results update as you type, and every field accepts the units shown in its menu.

### How it works

Choose °F or °C, enter the oven temperature and time from the recipe, and say whether the food is frozen.

### Inputs explained

FieldWhat to enterTemperature unitChoose one: °F, °COven recipe temperatureA numberOven cooking timeUnits: min, h, sFood is frozen?Choose one: No, YesRecipe is for a fan (convection) oven?Choose one: No, Yes

### Example values

How the main result changes when **Oven recipe temperature** changes and everything else stays at the example values above:

Oven recipe temperatureAir fryer temperature200175300275400375500475600575800775

## Worked example

Inputs — Temperature unit: °F; Oven recipe temperature: 400; Oven cooking time: 20 min; Food is frozen?: No; Recipe is for a fan (convection) oven?: No.

Results — **Air fryer temperature = 375**; Air fryer cooking time = 16 min; Start checking at = 12 min; Air fryer temperature in the other unit = 191; Shake or flip = Shake the basket or flip the food halfway through.

## FAQ

**How do I convert oven time to air fryer time?**
Lower the temperature by 25 °F (15 °C) and cut the time by about 20%.

**Do I need to preheat an air fryer?**
3–5 minutes of preheating gives crisper results for most foods.

**Can I use foil or parchment in an air fryer?**
Yes, but don't cover the whole basket – air needs to circulate.