Salter
Best cheap air fryerSalter
Salter Digital Air Fryer 4.2L EK5735
Affordable digital air fryer with adjustable temperature control.
Best for: Budget-conscious small households
Check priceAir Fryer Size Calculator
Most households need 4L–7L: one person 2–4L, two people 4–6L, family of 3–4 about 5–8L. Batch cooking or larger families need 6L–12L.
Answer a few questions about your household, how you cook, and how much kitchen space you have. We’ll suggest a realistic size range in litres and show air fryers that fit.
Tell us about your household
Your recommended size
We recommend an air fryer between 4L and 5L.
For two people and simple meals (single-dish or ready-made), 4L–5L gives you enough capacity for two portions at once without going oversized. It’s a practical middle ground.
CompactSpace-saving
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Compact air fryer with air fry, roast, reheat and dehydrate functions.
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Capacity and models that work for families of 3–5.
Best air fryer for two people
Ideal sizes and options for couples.
Best air fryer for small kitchen
Compact models that fit limited counter space.
Air fryer vs oven
When to use each and how they compare.
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How to use this air fryer size calculator
Choosing an air fryer is easier when you stop thinking in model names and start thinking in capacity and how you actually cook. Our calculator is designed to give you a sensible size range in litres, then you can decide which brand and features you prefer inside that range.
Start by telling the calculator how many people you usually cook for. Then pick the cooking style that best matches your everyday habits: snacks only, simple meals, full meals, or batch cooking. If you have a very small kitchen, you can flag that too so the recommendations lean towards compact models.
The result is a capacity range (for example, 4L–6L for a couple, or 5L–8L for a small family) and a suggested tier: compact, family, or large. From there, you can read our supporting guides on the best air fryer for families, couples, and small kitchens, or browse example products that match your size band.
What size air fryer different households need
As a rough guide, one person usually needs around 2–4L for snacks and simple meals; two people are better served by 4–6L; and a family of three to four typically needs 5–8L to cook full dinners without constant batch cooking. Households that batch‑cook for the week or cook for larger groups often benefit from 6–10L or a dual‑drawer model. The calculator bakes these rules of thumb in so you don't have to memorise them.
How to move from size range to a final choice
Once you know your size band, you can narrow down models by shape (basket vs oven‑style), features, and budget. Our guides on the best air fryer for families, couples, and small kitchens walk through those trade‑offs in more detail. You can use the capacity range as a non‑negotiable starting point and treat everything else as preference, which makes the buying decision much calmer.
Air fryer size FAQs
The calculator asks how many people you cook for, how you typically cook (snacks, simple meals, full meals, or batch cooking), and how much counter space you have. It combines those inputs into a recommended range in litres and a rough tier (compact, family, or large), then maps that to example air fryers. It is designed to give you a sensible starting point, not to push you to the largest or most expensive option.
Not necessarily. Bigger baskets take more space on your counter and use more energy per cycle. For many households, a sensibly sized compact or mid-range air fryer is more practical than the largest model available. Our calculator is tuned so that it only recommends larger capacities when your household size or cooking style genuinely calls for it, such as batch cooking or feeding four or more people regularly.
For most people, the air fryer and the oven do different jobs. The air fryer shines for quick, smaller cooks and reheating—chips, vegetables, small portions of meat, and leftovers. The oven is still better for very large roasts, baking, and multi-tray cooking. Many households end up using both: the oven for big or slow meals, the air fryer for weeknights, snacks, and reheats. If you want a deeper comparison, read our Air fryer vs oven guide and use the calculator to choose a size if you decide to buy an air fryer.
We pick example products based on capacity, use case, and practicality—not pay-for-placement. Recommendations are grouped by size tier and backed by the capacity ranges suggested by the calculator. If a model no longer fits those ranges or use cases, we remove or replace it. You can also ignore the example products entirely and just use the size guidance to shop with any retailer you prefer.
If you regularly batch-cook for the week or cook for a larger family, you typically need 6–10L of capacity or a dual-drawer model with around 7L+ total. That lets you cook more in one go without constant batch cooking. In the calculator, choose batch cooking as your cooking style and enter your household size—the result will suggest a realistic range rather than a single number.
In a small kitchen, 3–5L is usually the sweet spot. 3–4L suits one or two people who mainly cook snacks and simple meals; 4–5L works better if you cook full dinners for two. The calculator includes a kitchen space input so you can tell it that your space is very limited and get a recommendation that balances capacity against footprint. For more detail, see our guide to the best air fryer for a small kitchen.
An air fryer can reheat leftovers and many foods more nicely than a microwave—crispy instead of soft—but it is not a one-to-one replacement. Microwaves are still faster for reheating liquids, sauces, and some prepared meals. Many people use an air fryer and microwave together: the microwave for speed, the air fryer for crisp results. Our calculator focuses on size for cooking, not whether you still need a microwave.
A 4L air fryer is usually best suited to one or two people. For a family of three to four eating full meals, 5–8L is more realistic if you want to avoid constant second batches. A compact 4L model can still be useful as a second appliance for sides or snacks, but for a primary family air fryer the calculator will usually suggest a larger range once you enter three or more people and full meals as your cooking style.
Litre ratings are a useful guide, but they do not always translate perfectly between brands because basket shape and usable cooking area also matter. A square 5.5L basket can feel roomier than a tall, round 6L one. That is why we use ranges (for example, 4–6L or 5–8L) instead of single numbers, and why our guides talk about real-world examples like how many portions of chips or whether a small whole chicken will fit.
If your household is likely to grow—moving in with a partner, planning children, or having family stay regularly—it can be sensible to choose a size at the top end of your current recommended range. For example, a couple might choose 5.5–6L instead of 4.5L if they know they will often cook for three in the future. You can always rerun the calculator later with your new household size to see how your ideal range shifts.