How Long to Bake Chicken Breast (Time & Temp)

Baking is one of the most forgiving ways to cook chicken breast, but "done" is a temperature, not a time. Breast thickness, starting temperature, how quickly your oven recovers after you open the door, and hot spots in your oven all change how fast the center reaches a safe 165°F (74°C). The times below are reliable starting points; an instant-read food thermometer is the final word.

The USDA safe minimum internal temperature for all poultry—including chicken breast—is 165°F (74°C). Unlike beef or pork, poultry has no lower "medium" option: 165°F is both the safe minimum and, conveniently, the doneness most people want for a juicy, sliceable breast. If your breast is thick or lopsided, pounding it to an even thickness or brining it first helps the center reach temperature before the outside dries out.

How to use this chart (and where to measure)

Insert an instant-read thermometer into the thickest part of the breast, keeping the tip in the center of the meat and away from the pan and any bone—both read hotter or cooler than the meat itself. Start checking a few minutes before the low end of the time range so you can catch the target on the way up. Pull the chicken at 165°F (74°C); carryover cooking is minimal for a lean boneless breast, so don't undershoot expecting a big temperature climb while it rests.

Bone-in, skin-on breasts take longer—roughly 10-15 extra minutes—because the bone slows heat transfer to the center. They still need to reach 165°F (74°C), measured next to but not touching the bone.

• Trust the thermometer, not the timer. Ovens, pans, and breast thickness all vary; 165°F (74°C) in the thickest part is the only reliable sign of doneness.
• Even out the thickness. Pound breasts to a uniform ~3/4 inch (2 cm), or butterfly very thick ones, so the center and the thin tip finish at the same time.
• Brine for insurance. A 15-30 minute soak in salted water—or a dry-salt rub—helps the breast stay moist even if you overshoot slightly.
• Rest before slicing. Let the breast sit about 5 minutes so juices redistribute; the internal temperature will hold or rise only a degree or two.
• Start from a known temperature. Cold-from-the-fridge breasts run longer than the ranges above. Letting them sit ~15 minutes at room temperature makes timing more predictable—but never partially cook chicken to finish later.
• Use a leave-in probe for hands-off accuracy. A probe thermometer with an alarm set to 165°F (74°C) removes the guesswork and helps you avoid overcooking.

What temperature should baked chicken breast reach?

165°F (74°C). That is the USDA safe minimum internal temperature for all chicken, and it is also the doneness that keeps a boneless breast juicy. Measure in the thickest part with a food thermometer.

Is 165°F the safe temperature or just a preference?

It is the safety line, not a preference. USDA sets 165°F (74°C) as the safe minimum internal temperature for poultry because it reliably destroys harmful bacteria such as Salmonella. There is no safe "medium" for chicken the way there is for beef, so never go below it.

How long do you bake chicken breast at 400°F?

Roughly 20-25 minutes for a 6 oz (170 g) boneless breast and 25-28 minutes for an 8 oz (227 g) one. Thickness affects timing more than weight, so verify 165°F (74°C) with a thermometer rather than relying on the clock.

Why does my baked chicken breast turn out dry?

Almost always overcooking. Lean breast dries out quickly once it passes 165°F (74°C), so pull it the moment it hits temperature. Evening out the thickness before baking and brining first also help keep it moist.

Do bone-in chicken breasts need a higher temperature?

No—the safe target is still 165°F (74°C). Bone-in, skin-on breasts simply take about 10-15 minutes longer to get there. Check next to the bone but keep the thermometer tip in the meat, since bone reads a different temperature than the surrounding meat.