Beef tenderloin in the oven.45 minutes to 1 h at 425°F
Whole tenderloin, 4-6 lb. A useful starting range, with the details that matter.
Beef tenderloin, your setting
at 425°F
Based on FoodSafety.gov: meat and poultry roasting charts.
Source entry: Tenderloin roast whole. Portion controls describe one piece or planning portion; they are separate from the manufacturer’s total basket load.
From preheat to the final check.
- 1
Preheat
425°F; follow your appliance instructions.
- 2
Cook
45 minutes to 1 h; keep pieces evenly spaced.
- 3
Check
145°F at the center; Whole cuts of beef, pork and lamb.
- 4
Rest
At least 3 minutes after reaching the safe temperature.
A quick size comparison.
The source reference is marked below. Other rows are modelled estimates at your selected settings.
| Reference size | Typical time | Basis |
|---|---|---|
| 4 lb | 45 minutes to 1 h | Model estimate |
| 5 lb | 45 minutes to 1 h | Source reference |
| 6 lb | 45 minutes to 1 h | Model estimate |
Same food. Different details.
A frozen estimate is not supported for this method. Thaw safely before using the reference range.
A few things worth knowing.
How long does beef tenderloin take in the oven?
For Whole tenderloin, 4-6 lb, the chart baseline is 45 minutes to 1 h at 425°F. Adjusted sizes and temperatures are modelled estimates.
What makes beef tenderloin cook faster or slower?
Use evenly sized pieces so the center and outside finish closer together. Thickness, initial temperature and appliance output also matter. A total basket weight does not describe the thickness of each piece.
Can I cook beef tenderloin from frozen?
This method has no supported frozen model. Thaw safely first and use the reference shape.
When should I start checking?
Check at 45 minutes for this setting. Keep cooking if the center has not reached the appropriate safety endpoint or texture. A timer is a reminder to check.
How do I know when beef tenderloin is done?
Reach 145°F before removing from heat, then rest for at least 3 minutes. A thermometer beats any timer.
Next on the menu?
More oven timesWhere this range comes from.
- FoodSafety.gov: meat and poultry roasting chartsChecked 2026-10-01
- FoodSafety.gov: safe minimum internal temperaturesChecked 2026-10-01
Reference facts are compiled from primary charts. Adjusted ranges are planning estimates. Read how we calculate them.