how long to cook pork tenderloin
Pork tenderloin cooks quickly, so the key is timing plus internal temperature, not just the clock.
Quick Scoop: Time & Temperature
- At 400°F (204°C): about 15–25 minutes for a typical 1–1.5 lb tenderloin, start checking at 15–20 minutes.
- At 375°F (190°C): about 20–25 minutes for a 2–2.5 lb tenderloin.
- Internal temp target: 145°F (63°C) in the thickest part, then rest 5–10 minutes so it stays juicy.
- Thinner or half tenderloins (0.5–0.75 lb): often 15–20 minutes at 400°F , so check early.
Simple rule of thumb
- Preheat oven to 375–400°F (190–204°C).
- Sear in a hot pan first (optional but tasty), then transfer to the oven.
- Start checking temp at 15–20 minutes.
- Pull at 145°F, rest 5–10 minutes, then slice.
Why time varies
- Weight & thickness: Smaller or thinner pieces cook faster; some home cooks with half tenderloins hit temp in about 15–20 minutes at 400°F.
- Oven temperature : 375°F typically takes a bit longer than 400°F, often in the 20–25 minute range.
- Starting method : If you sear on the stove then finish in the oven, oven time is shorter, but the meat still needs to reach 145°F.
Most up-to-date guides and forum cooks agree: always trust a meat thermometer over any exact minutes for perfectly cooked, slightly pink, very juicy pork tenderloin.
Information gathered from public forums or data available on the internet and portrayed here.
