Air Fryer Oil Usage Calculator

How Much Healthier Is Air Frying?

One of the main reasons people switch to an air fryer is to reduce oil consumption and calories. But how much oil does an air fryer actually use compared to shallow or deep frying? The answer depends on the food — but the difference is significant.

Our oil usage calculator shows you exactly how many millilitres of oil each cooking method uses, and calculates the calorie difference between air frying and frying in oil.

Key Fact: Air frying typically uses 5–15ml of oil per serving, compared to 25–40ml for shallow frying and 80–150ml for deep frying. Oil contains approximately 9 calories per millilitre, so the calorie savings add up quickly.

Air Frying vs Deep Frying: Health Comparison

Oil Absorption

When food is deep fried, it absorbs a significant amount of the cooking oil — studies suggest foods absorb between 8–25% of the oil they are cooked in. Air-fried food uses so little oil that oil absorption is negligible. For someone who eats fried foods several times per week, switching to an air fryer can mean consuming hundreds of fewer calories per week from oil alone.

Acrylamide Formation

Deep frying at very high temperatures can produce acrylamide, a chemical compound formed when starchy foods are cooked at high heat. Research suggests air frying reduces acrylamide formation by up to 90% compared to deep frying, as the cooking temperatures are more controlled and the food is not submerged in hot oil.

Nutritional Retention

Because air frying uses lower amounts of heat and shorter cooking times for many foods, it may retain more heat-sensitive nutrients than boiling or longer oven cooking methods. However, the differences are relatively small for most nutrients in typical cooking.

The Trade-Off

Air-fried food tastes different from deep-fried food — the texture is crispy but lighter, and the fat content means the flavour profile is different. Many people prefer it; others find it doesn't replicate the experience of deep frying for specific foods (like battered fish). For most everyday cooking, the health benefits of air frying over deep frying are clear and well worth the slight difference in taste.

QHow many calories does air frying save compared to deep frying?

Typically 600–1200 calories per 500g of food, depending on what you are cooking. Fries are one of the biggest savers — deep-fried versions absorb significantly more oil than air-fried ones. Use the calculator above for a specific comparison for your chosen food.

QDo I need to use oil in an air fryer?

Not always. Naturally fatty foods like sausages, bacon, chicken thighs, and salmon do not need added oil. For lean proteins like chicken breast, fish fillets, and vegetables, a very light spray of oil (1–2ml) dramatically improves crispiness and browning.

QIs air frying healthier than oven baking?

They are similar in terms of oil use — both require minimal added oil. Air frying is faster and often produces a crispier result. The main health advantage of air frying is over deep and shallow frying, not necessarily over oven baking.