Beef Fillet Cooking Time Calculators – Perfect Results

Beef Fillet Cooking Time Calculator | Free UK Tool
🇬🇧 Kitchen Calculator · UK

Beef Fillet Cooking Time Calculator

Enter your fillet weight, preferred doneness, and cooking method — get a complete schedule including pan searing, oven roasting, resting time, and your exact ready-to-carve clock.

⚖️ kg & lbs supported
🌡️ 5 doneness levels covered
🍳 Pan-sear & oven method
⏱️ Rest & carve times given
100%
Free to use
No sign-up needed
5
Doneness levels
Rare to well done
200°C
Oven temperature
After pan sear
0p
No paywall
Instant results

Calculate your beef fillet roasting time

Fill in your fillet details below for an instant cooking schedule — pan sear time, oven roast time, resting period, and your carve-ready clock, all in one place.

Your fillet details

Fill in all fields for an accurate cooking schedule

kg

Your Cooking Schedule

Stage-by-stage timing for perfect beef fillet

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Fill in your fillet details and click Calculate to get your personalised cooking schedule — including pan sear, oven time, resting, and a ready-to-carve clock.

Everything you need to know about cooking beef fillet

Beef fillet is the most tender and prized cut on the animal. It demands precision — but master the technique and the results are extraordinary.

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Sear first, oven second

Get a heavy-based or cast iron pan screaming hot before the fillet touches it. Sear every surface for 2–3 minutes until a deep mahogany crust forms all over. Then transfer immediately to a 200°C oven to finish. This two-stage approach delivers a perfect crust with an evenly pink centre.

Pan then 200°C oven
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A thermometer is essential

Fillet is expensive — guessing doneness is a costly mistake. Insert a digital probe into the thickest centre of the fillet. Remove from the oven 3–4°C below your target temperature; it will continue to rise during resting. For medium-rare, pull at 50°C and rest to 55°C.

Pull 3–4°C early
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Butter baste for flavour

After searing, add a generous knob of butter, a few thyme sprigs, and a crushed garlic clove to the pan. Tilt the pan and continuously spoon the foaming, herb-infused butter over the fillet for 60–90 seconds before it goes in the oven. This builds extraordinary flavour in the crust.

Butter + thyme + garlic
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Season well in advance

Salt the fillet at least 45 minutes before cooking — ideally an hour or more. The salt draws surface moisture out, which then dissolves and reabsorbs back into the meat, seasoning it from within. Pat completely dry with paper towels before searing; any surface moisture will cause steaming, not browning.

Salt 45+ min ahead
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Tie the fillet for even cooking

A whole fillet tapers at both ends, meaning the tail will overcook before the centre is done. Fold the thin tail under itself and tie the fillet at 3cm intervals with kitchen string to create an even cylinder. This single step is the biggest improvement you can make for a uniformly cooked result.

Tie every 3cm
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Carve with confidence

Use a long, sharp carving knife and slice in one clean stroke — don’t saw. Fillet has virtually no grain compared to other cuts, so direction matters less, but consistent thickness (2–3cm slices) gives each portion the same texture. Remove the string just before carving, never before resting.

2–3cm clean slices

Beef fillet cooking times by weight

Times below are for a trimmed, tied whole fillet at room temperature — 2–3 min per side pan sear, then finished in a 200°C conventional oven. Add 5–8 minutes if cooking straight from the fridge.

Weight Rare (48–52°C) Medium-Rare (53–57°C) Medium (58–63°C) Well Done (69°C+) Rest
400 – 600g 6–8 min 8–10 min 10–14 min 16–20 min 10 min
600g – 1 kg 8–12 min 12–16 min 16–20 min 22–28 min 12 min
1 – 1.5 kg 12–16 min 16–22 min 22–28 min 30–38 min 15 min
1.5 – 2 kg 16–22 min 22–28 min 28–36 min 38–48 min 18 min
2 – 2.5 kg 20–26 min 26–34 min 34–44 min 46–58 min 20 min

Oven times only — excluding pan sear (~10 min for a whole fillet). Always verify with a meat thermometer.

How to cook the perfect beef fillet

Follow these professional techniques for a fillet that is impeccably seared outside and perfectly pink throughout — every single time.

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Dry the surface completely

This is the most overlooked step. Pat the fillet bone-dry with paper towels immediately before it goes in the pan. Any surface moisture converts to steam on contact with the hot pan, lowering the temperature and causing the meat to poach rather than sear. Dryness equals the Maillard reaction — the deep, complex crust that makes fillet extraordinary.

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Use the right pan & fat

A heavy cast iron or stainless steel pan retains heat far better than non-stick when the cold meat hits it. Use a high smoke-point fat — beef dripping, rapeseed oil, or clarified butter — not olive oil, which burns. Heat until you see the first wisps of smoke before the fillet goes in. Sear without moving it until it releases naturally.

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Never skip the rest

Resting allows the muscle fibres that contracted during cooking to relax and reabsorb their juices evenly throughout the fillet. For a whole fillet, rest on a warm plate under loose foil for at least 15 minutes. The internal temperature will rise a further 3–5°C, so factor this into your target. Cutting early wastes the most expensive part of the process.

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Make a pan sauce while it rests

The fond (caramelised juices) left in the pan after searing is pure flavour. Deglaze with a splash of red wine or brandy, add beef stock, a knob of cold butter, and reduce for 3–4 minutes. Strain through a sieve and serve alongside the fillet. This turns a great piece of meat into a restaurant-quality dish with almost no extra effort.

Cooking times you can trust

Our beef fillet cooking time calculator uses the professional two-stage method — a high-heat pan sear to develop a deep crust on all surfaces, followed by a precise oven finish at 200°C. This is how restaurant kitchens cook fillet, and it produces far more consistent results than oven-only methods.

All oven times are calibrated for a trimmed, tied fillet at room temperature, with clear adjustments for oven type, cut preparation (including Beef Wellington), and fridge-cold starting temperature. Temperature is always the final arbiter — use a probe thermometer.

  • Two-stage method: pan sear then 200°C oven finish
  • Five doneness levels from rare (48°C) to well done (69°C+)
  • Fan oven and AGA adjustments factored in
  • Beef Wellington pastry timing included as separate option
  • Fridge-cold vs room-temperature timing differences
  • No ads, no sign-up, no data stored — runs in your browser

Beef fillet FAQs

How long do I cook beef fillet per kg?
After pan searing all sides (approximately 10 minutes total for a whole fillet), finish in a 200°C oven for approximately 10–12 minutes per kg for rare, 15–18 minutes per kg for medium-rare, 20–25 minutes per kg for medium, and 30+ minutes per kg for well done. These are guides — always verify with a meat thermometer. Remove 3–4°C below your target temperature as it rises during resting.
After pan searing, transfer to a 200°C oven (180°C fan) to finish. This high temperature creates a fast, even finish without drying the outer layers before the centre is cooked. For a Beef Wellington, use 220°C (200°C fan) to ensure the pastry cooks and crisps fully before the fillet overcooks inside. For an AGA, use the roasting oven throughout.
Rest beef fillet for at least 10–15 minutes for a smaller piece (under 1kg), or 15–20 minutes for a larger whole fillet. Place on a warm plate and cover loosely with foil — not tightly, as you don’t want to trap steam and soften the crust. The internal temperature will rise 3–5°C during resting, which is why you remove the fillet from the oven below your final target temperature.
A whole fillet is the entire tenderloin muscle, typically 1.5–2.5kg, which tapers from a thick centre to a thinner tail end. A Châteaubriand is a thick portion (usually 400–600g) cut from the widest part of the centre — it’s more uniform in shape and often served for two people as a luxury sharing cut. Because a Châteaubriand is thick and even, it cooks more predictably than a whole fillet and is ideal for the pan-sear-to-oven method.
Beef Wellington requires extra steps: sear and cool the fillet completely, brush with English mustard, wrap in a layer of mushroom duxelles, then roll tightly in prosciutto and puff pastry. Refrigerate for at least 30 minutes before baking so the pastry holds its shape. Bake at 220°C (200°C fan) — the higher temperature ensures the pastry cooks fully before the fillet overcooks. Use a thermometer: pull at 48–50°C for medium-rare, as the pastry continues to hold heat after the oven. Rest for at least 10 minutes before slicing.
Never cook beef fillet from frozen — it is too expensive a cut to risk, and the results will be unacceptably uneven. Always defrost fully in the fridge overnight, then bring to room temperature for at least 1 hour before cooking. If you’re pressed for time and must cook from cold, add 5–8 minutes to the oven time and rely entirely on a meat thermometer rather than timing guides.

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