Sirloin steak in the oven depends on thickness and whether you sear it first for a better crust. If you are wondering how long do i cook sirloin steak in the oven, the short answer is 12 to 20 minutes at 400°F (200°C) for most one-inch steaks. Thicker cuts need more time, thinner cuts need less. Below you’ll find exact times, temps, and a simple step-by-step method that works every time.
Quick Answer: Oven Times For Sirloin Steak
Oven time always depends on thickness. A one-inch sirloin cooks faster then a two-inch steak. Use this chart as your starting point.
- 1 inch thick: 12 to 15 minutes at 400°F for medium-rare
- 1.5 inches thick: 16 to 20 minutes at 400°F for medium-rare
- 2 inches thick: 22 to 28 minutes at 400°F for medium-rare
- Thin cutlets (1/2 inch): 8 to 10 minutes at 400°F
These times assume you sear the steak on the stove first. If you skip the sear and bake only, add 3 to 5 minutes. Always check the internal temperature with a meat thermometer. That is the only way to be sure.
How Long Do I Cook Sirloin Steak In The Oven
This is the core question, so lets break it down by doneness. Pull the steak when it hits these internal temps:
- 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 24 minutes for 1 inch)
Remember that steak keeps cooking after you take it out. This is called carryover cooking. It can raise the temp by 5 to 10 degrees. So pull your steak 5 degrees before your target. Then let it rest.
Why Thickness Matters More Than Time
A thick steak needs more oven time because heat has to travel further to the center. A thin steak cooks through fast. That is why you cannot rely on a single time for all sirloins. Measure your steak with a ruler or tape before you cook. It takes five seconds and saves your dinner.
Should You Sear Sirloin Before Baking
Yes, searing is worth it. A hot pan gives you a brown crust and better flavor. Sear 2 to 3 minutes per side in a cast iron skillet over high heat. Then move the pan to the oven. If your skillet is not oven-safe, transfer the steak to a baking sheet.
No sear? No problem. Just bake it a bit longer and broil for the last 2 minutes to get some color.
Step-By-Step Oven Sirloin Steak Method
Follow these steps for a perfect steak every time.
- Take the steak out of the fridge 30 minutes before cooking. Room temp meat cooks more evenly.
- Pat it dry with paper towels. Wet meat steams instead of sears.
- Season both sides with salt and pepper. Be generous.
- Preheat the oven to 400°F (200°C).
- Heat an oven-safe skillet over high heat. Add a little oil.
- Sear the steak 2 to 3 minutes per side. Do not move it around.
- Add butter, garlic, or herbs if you like. Spoon the melted butter over the steak.
- Put the skillet in the oven. Cook 12 to 15 minutes for a 1-inch steak, or until it hits your target temp.
- Move the steak to a cutting board. Cover it loosely with foil.
- Rest for 5 to 10 minutes. Then slice against the grain.
Oven Temperature: 400°F Vs 425°F
400°F is the sweet spot for most sirloins. It cooks the inside without burning the outside. If you want a faster cook and a darker crust, use 425°F. Just cut the time by 2 to 3 minutes and watch it closely.
Some recipes call for a low oven at 250°F to 275°F. That method is more forgiving but takes 30 to 45 minutes. It works well for thick steaks. Pick the method that fits your schedule.
Using A Meat Thermometer
Stick the probe into the thickest part of the steak. Avoid touching bone or fat. Those spots heat differently and give a false reading. Check the temp about 2 minutes before your estimated finish time. Then check every minute after.
Common Mistakes To Avoid
Even good cooks make these mistakes. Watch out for them.
- Cooking cold steak straight from the fridge. It cooks unevenly.
- Skipping the rest. Juices need time to settle back into the meat.
- Overcrowding the pan. Steam builds up and kills the crust.
- Trusting time over temperature. Every oven runs a little hot or cold.
- Slicing too soon. You lose all the juice on the board.
- Using a dull knife. It tears the meat instead of cutting it.
How To Tell When Sirloin Is Done Without A Thermometer
No thermometer handy? Use the touch test. Press the center of the steak with your finger.
- Rare feels soft and squishy, like your cheek.
- Medium feels springy, like the base of your thumb.
- Well done feels firm, like your forehead.
This method takes practice. A thermometer is still the best tool. But the touch test works in a pinch.
Resting Time For Sirloin Steak
Rest the steak for 5 to 10 minutes. A thick two-inch steak needs the full 10 minutes. A thin one needs about 5. Cover it loosely with foil to keep it warm. Do not wrap it tight or the crust gets soggy.
What To Serve With Oven Sirloin Steak
Keep sides simple so the steak shines. Here are a few ideas that cook fast.
- Roasted potatoes with rosemary
- Garlic green beans
- A simple green salad with vinaigrette
- Grilled asparagus with lemon
- Crusty bread and butter
You can also roast veggies in the same oven while the steak rests. Just raise the heat to 425°F and give them 20 minutes head start.
Final Tips For Perfect Oven Sirloin
Buy a steak that is at least one inch thick. Thicker steaks are more forgiving and stay juicy. Dry the surface well before searing. Season early if you can, even a day ahead. Let the steak rest before slicing.
And always, always use a thermometer. It removes the guesswork. Once you nail the temp, you can cook sirloin in the oven with confidence any night of the week. The chart above gives you a solid starting point, but your oven and your pan will teach you the final tweaks. Cook it once, note the time, and adjust next time. That is how you get repeatable results.