How Long To Cook Sirloin Steak In Oven

ByLily

Oven-roasting sirloin steak works well for thicker cuts, though the timing shifts with the steak’s size. If you want to know exactly how long to cook sirloin steak in oven, the short answer is 12 to 18 minutes at 400°F for a one-inch steak, depending on your target doneness. This guide breaks down the timing by thickness, doneness level, and cooking method so you get a perfect result every time.

How Long To Cook Sirloin Steak In Oven

The total oven time depends on three things: steak thickness, your desired doneness, and whether you sear the meat first. A one-inch sirloin cooked at 400°F usually needs 12 to 15 minutes for medium-rare. A thicker two-inch steak can take 20 to 25 minutes. Searing the steak in a skillet before it goes in the oven shortens the oven time by a few minutes.

Quick Timing Chart By Thickness

Use this chart as a starting point. Times are for a 400°F oven and medium-rare (130°F to 135°F final temperature).

  • 1 inch thick: 12 to 15 minutes
  • 1.5 inches thick: 16 to 20 minutes
  • 2 inches thick: 20 to 25 minutes
  • 2.5 inches or more: 25 to 30 minutes

Add 3 to 5 minutes for medium, and 6 to 8 minutes for well-done. Always check with a meat thermometer instead of guessing by color alone.

Timing By Doneness Level

Doneness matters more than any clock. Pull the steak when it reads 5°F below your target, because the temperature rises as the meat rests.

  • Rare: 120°F to 125°F, about 10 to 12 minutes for 1 inch
  • Medium-rare: 130°F to 135°F, about 12 to 15 minutes for 1 inch
  • Medium: 140°F to 145°F, about 15 to 18 minutes for 1 inch
  • Medium-well: 150°F to 155°F, about 18 to 20 minutes for 1 inch
  • Well-done: 160°F and up, about 20 to 22 minutes for 1 inch

Two Oven Methods For Sirloin Steak

You can roast sirloin straight in the oven or sear it first on the stovetop. Both work. The reverse-sear and skillet-sear methods give you a better crust, but plain oven roasting is simpler and still tasty.

Method 1: Sear Then Finish In The Oven

This is the most popular approach and gives a restaurant-style crust.

  1. Take the steak out of the fridge 30 minutes before cooking. Pat it dry with paper towels.
  2. Season both sides generously with salt and pepper.
  3. Heat an oven-safe skillet over high heat with a tablespoon of oil.
  4. Sear the steak for 1 to 2 minutes per side until a brown crust forms.
  5. Move the skillet to a 400°F oven. Cook 6 to 10 minutes, depending on thickness.
  6. Check the internal temp and pull the steak at 5°F below your target.
  7. Rest the steak on a board for 5 to 10 minutes before slicing.

Method 2: Straight Oven Roasting

No skillet needed. This method is hands-off and great for busy nights.

  1. Preheat the oven to 400°F and line a baking sheet with foil.
  2. Rub the steak with oil, salt, and pepper.
  3. Place the steak on a wire rack over the sheet so heat moves around it.
  4. Roast 12 to 25 minutes based on thickness and doneness.
  5. Use a thermometer to confirm the internal temperature.
  6. Rest for 5 to 10 minutes, then slice against the grain.

Tips For A Tender, Juicy Sirloin

Sirloin is leaner than ribeye, so it can dry out if you overcook it. A few small habits make a big difference.

  • Let the steak sit at room temperature before cooking so it cooks evenly.
  • Dry the surface well. Wet meat steams instead of browning.
  • Use a meat thermometer. It is the only reliable way to nail doneness.
  • Rest the steak. Cutting too early lets the juices run out.
  • Slice against the grain to keep each bite tender.
  • Choose a steak at least one inch thick. Thin cuts overcook fast.

Should You Broil Instead Of Bake?

Broiling works if your steak is thin or you want a fast crust. Set the rack 4 to 6 inches from the heat and broil 4 to 6 minutes per side for a one-inch steak. Watch it closely, because broilers burn meat quickly. For thicker cuts, roasting at 400°F gives more even results.

Common Mistakes To Avoid

Most oven sirloin problems come from a few repeat errors. Avoid these and your steak turns out right.

  • Cooking cold steak straight from the fridge
  • Skipping the rest time
  • Relying on time alone instead of temperature
  • Using too low an oven temp, which dries the meat out
  • Cutting the steak with the grain

Resting And Serving Your Sirloin

Resting is not optional. During rest, the juices redistribute through the meat instead of spilling onto the board. A 1-inch steak needs about 5 minutes. A 2-inch steak needs closer to 10 minutes. Tent it loosely with foil if you want, but do not wrap it tight or the crust goes soft.

Slice against the grain into half-inch strips. Serve with roasted potatoes, a simple green salad, or grilled vegetables. Leftovers keep in the fridge for three to four days and taste great in sandwiches or over rice.

Final Word On Oven Timing

So how long do you cook sirloin steak in the oven? For a one-inch steak at 400°F, plan on 12 to 15 minutes for medium-rare. Thicker steaks need more time, thinner ones need less. Use the chart above, check the internal temperature, and always rest the meat before slicing. Do that and your oven sirloin will come out juicy and tender every single time.

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