Air Fryer Calculator UK – Convert Oven Recipes

Air Fryer Calculator

Convert your oven recipes to air fryer settings with precision

Your Conversion Results

How to Use This Calculator

This calculator helps you adapt traditional oven recipes for your air fryer. Air fryers cook food more efficiently by circulating hot air rapidly around the food, which means you need lower temperatures and shorter cooking times compared to conventional ovens.

Step-by-Step Instructions

  1. Enter the oven temperature: Input the temperature specified in your original recipe in degrees Celsius.
  2. Enter the cooking time: Add the total cooking duration from your recipe in minutes.
  3. Select your air fryer type: Different air fryer models have varying heating efficiency. Choose the type that matches your appliance.
  4. Choose food type: This optional field provides more accurate conversions based on what you’re cooking.
  5. Click calculate: View your converted temperature and time settings.
Top Tip: Always check your food a few minutes before the calculated time ends. Air fryer models vary, and factors like food quantity and initial temperature can affect cooking duration.

Conversion Principles

Air fryers operate differently from conventional ovens due to their compact cooking chamber and powerful fan system. The rapid air circulation creates a convection effect that cooks food faster and more evenly.

Temperature Adjustment

The standard temperature reduction is 20°C from the oven setting. This accounts for the more efficient heat transfer in air fryers. Some models may require 15-25°C reduction depending on their power and design.

Time Reduction

Cooking times are typically reduced by 20-25% for air fryers. The exact percentage depends on several factors including food density, moisture content, and whether the food is fresh or frozen.

Air Fryer Type Variations

Basket Air Fryers

Most common type with a pull-out basket. Excellent for smaller portions and foods that benefit from shaking during cooking.

Temp Reduction: 20°C

Time Reduction: 20%

Dual Zone Basket

Features two independent cooking zones. Ideal for cooking different foods simultaneously at different settings.

Temp Reduction: 20°C

Time Reduction: 20-25%

Oven-Style Air Fryers

Larger capacity with multiple racks. Better for bigger batches but may require slightly longer cooking times.

Temp Reduction: 15-20°C

Time Reduction: 15-20%

Paddle Air Fryers

Equipped with a rotating paddle that stirs food automatically. Perfect for sauces, curries, and items needing constant movement.

Temp Reduction: 20°C

Time Reduction: 20-25%

Quick Reference Chart

Use this chart for common oven temperatures and their air fryer equivalents.

Oven Temp (°C) Air Fryer Temp (°C) Oven Time (mins) Air Fryer Time (mins) Best For
140 120 60 48 Slow cooking, drying
150 130 50 40 Baked potatoes, slow roasts
160 140 45 36 Cakes, muffins
170 150 40 32 Biscuits, pastries
180 160 30 24 Chicken pieces, vegetables
190 170 25 20 Fish, thin cuts of meat
200 180 20 16 Chips, wings, crispy items
210 190 15 12 Pizza, quick-cooking items
220 200 10 8 Flash cooking, crisping

Popular Foods Cooking Guide

Here are recommended air fryer settings for commonly cooked items starting from typical oven recipes.

Chicken Breast

Temperature: 180°C

Time: 18-22 mins

Turn halfway through cooking

Chicken Wings

Temperature: 200°C

Time: 20-25 mins

Shake basket every 5 minutes

Salmon Fillet

Temperature: 180°C

Time: 10-12 mins

No need to flip

Chips (Fresh)

Temperature: 200°C

Time: 15-20 mins

Shake every 5 minutes

Frozen Chips

Temperature: 200°C

Time: 12-15 mins

No need to defrost

Vegetables

Temperature: 180°C

Time: 10-15 mins

Toss with oil first

Sausages

Temperature: 180°C

Time: 12-15 mins

Turn once halfway

Bacon

Temperature: 180°C

Time: 8-10 mins

Depends on thickness

Muffins

Temperature: 160°C

Time: 12-15 mins

Check with toothpick

Expert Tips for Perfect Results

Preheating Your Air Fryer

Most air fryers benefit from a 3-5 minute preheat period, especially for foods that need a crispy exterior. However, some models heat up so quickly that preheating isn’t necessary. Check your manufacturer’s recommendations.

Avoid Overcrowding

Air needs to circulate freely around your food. Fill the basket no more than two-thirds full, and arrange items in a single layer when possible. Overcrowding leads to uneven cooking and soggy results.

Using Oil Wisely

While air fryers need less oil than traditional frying, a light spray or brush of oil helps achieve golden, crispy textures. For best results, use oils with high smoke points like rapeseed, sunflower, or avocado oil.

Shaking and Turning

For even browning, shake the basket or flip foods halfway through cooking. This is particularly important for chips, vegetables, and smaller items that can stick together.

Check Food Temperature

Invest in a digital meat thermometer to verify internal temperatures, especially for poultry and pork. Chicken should reach 75°C, while pork should reach 71°C for food safety.

Adjusting for Altitude

If you live at high altitude, you may need to increase cooking times slightly as air fryers can be affected by lower air pressure. Add 1-2 minutes to the calculated time and monitor closely.

Energy Efficiency: Air fryers use approximately 50% less energy than conventional ovens because they heat up faster and cook more efficiently. They’re excellent for reducing your energy bills while preparing delicious meals.

Common Questions Answered

Why do air fryer temperatures need to be lower than oven temperatures?
Air fryers use rapid air circulation technology that creates intense heat around food. This concentrated heat transfer means food cooks faster and more efficiently than in a conventional oven, requiring lower temperature settings to prevent burning whilst achieving the same or better results.
Can I put foil in my air fryer?
Yes, aluminium foil is safe to use in air fryers, but avoid covering the entire basket as this blocks airflow. Use foil to line the bottom or wrap individual items, ensuring it doesn’t touch the heating element. Never use foil when cooking acidic foods like tomatoes or citrus as it can react with the metal.
Do I need to adjust times for frozen foods?
Frozen foods generally don’t require defrosting before air frying. Add 3-5 minutes to the calculated cooking time for frozen items. Many frozen products like chips, nuggets, and fish fingers cook brilliantly from frozen and often turn out crispier than their oven-cooked counterparts.
Why is my food not crispy enough?
Several factors affect crispiness: insufficient oil (try a light spray), overcrowding (reduce batch size), excess moisture (pat food dry first), or low temperature (increase by 10°C). Also ensure you’re shaking the basket during cooking for even crisping.
Can I cook different foods together?
Yes, but choose items with similar cooking times and temperatures. Place items that need more cooking on the bottom where heat is most intense. With dual-zone air fryers, you can cook different foods simultaneously at different settings, perfect for complete meals.
How do I convert Fahrenheit recipes?
First convert Fahrenheit to Celsius: subtract 32, multiply by 5, then divide by 9. For example, 350°F becomes 177°C. Then apply the standard 20°C reduction for air fryer use, giving you approximately 160°C. Alternatively, use the formula: (°F – 32) × 5/9 – 20 = Air Fryer °C.
Is there a difference between fan oven and conventional oven conversions?
Yes. If your original recipe is for a fan oven, reduce the temperature by only 10°C when converting to an air fryer. Fan ovens already use convection, so they’re closer to air fryer cooking than conventional ovens. For conventional oven recipes, use the full 20°C reduction.
Why do my cooking times vary from the calculator?
Air fryer models vary in power (typically 800-2000 watts), size, and design. Food thickness, initial temperature, and quantity also affect cooking time. The calculator provides a reliable starting point, but always check food doneness a few minutes early and adjust for your specific appliance.
Can I bake cakes and bread in an air fryer?
Absolutely! Air fryers excel at baking. Use appropriate-sized tins that fit your air fryer basket with space for air circulation. Reduce oven temperature by 20°C and time by 20%, but start checking 5 minutes early as smaller cakes cook faster. Cover the top with foil if browning too quickly.

Troubleshooting Common Issues

Food Cooking Unevenly

This usually indicates overcrowding or insufficient shaking. Arrange food in a single layer with space between pieces. Shake the basket or flip items halfway through cooking. For larger items like chicken breasts, flip once at the midpoint.

Smoke Coming from Air Fryer

Excess oil or fat dripping onto the heating element causes smoke. Use less oil, or add a small amount of water to the drawer beneath the basket to catch drips. Clean your air fryer regularly to prevent oil buildup.

Food Too Dry

You may be overcooking or using temperatures that are too high. Reduce cooking time by 2-3 minutes or lower temperature by 10°C. Marinating meat or brushing with oil helps retain moisture. Consider using a meat thermometer to avoid overcooking.

Food Sticking to Basket

Even non-stick baskets benefit from a light oil spray. Preheat your air fryer before adding food, and ensure items aren’t too wet when they go in. For delicate foods like fish, use parchment paper designed for air fryers (with holes for air circulation).

Safety Considerations

Placement and Ventilation

Position your air fryer on a flat, heat-resistant surface with at least 13cm clearance on all sides. Never place it under cupboards or against walls, as hot air vents from the back and sides. Ensure the area is well-ventilated.

Handling Hot Components

Air fryer baskets and accessories become extremely hot during cooking. Always use oven gloves when removing the basket. Allow the appliance to cool for at least 30 minutes before cleaning.

Electrical Safety

Plug your air fryer directly into a wall socket rather than using extension leads. Keep the appliance and cord away from water sources. Never operate with wet hands or if the unit appears damaged.

Food Safety Temperatures

Always cook food to safe internal temperatures: poultry to 75°C, pork to 71°C, beef/lamb to 63°C for medium, and fish to 63°C. Use a digital thermometer inserted into the thickest part to verify doneness.

Scroll to Top