How Long To Cook A Roast Chicken

ByLily

Roast chicken timing hinges on the bird’s weight, and a meat thermometer is the surest way to know when it’s done. So how long to cook a roast chicken? As a simple rule, plan on about 20 minutes per pound at 350°F (175°C) for a whole stuffed bird, or 15 to 18 minutes per pound unstuffed.

That said, the exact time shifts with oven temperature, bird size, and whether you stuffed it. Below you’ll find a full timing chart, step-by-step method, and the temps that actually matter.

How Long To Cook A Roast Chicken

Weight is your starting point, but the thermometer is your final answer. Use this chart for a chicken roasted at 350°F (175°C).

  • 3 pounds (1.4 kg): 1 hour to 1 hour 15 minutes
  • 4 pounds (1.8 kg): 1 hour 15 minutes to 1 hour 30 minutes
  • 5 pounds (2.3 kg): 1 hour 30 minutes to 1 hour 50 minutes
  • 6 pounds (2.7 kg): 1 hour 50 minutes to 2 hours 10 minutes
  • 7 pounds (3.2 kg): 2 hours 10 minutes to 2 hours 30 minutes

These times are for an unstuffed chicken. Add roughly 15 to 20 minutes if you stuff the cavity.

Why The Thermometer Beats The Clock

Ovens run hot or cold. A chicken that should take 90 minutes might finish in 75, or need 105. The only reliable test is internal temperature.

  • Breast meat: 165°F (74°C)
  • Thigh meat: 165°F (74°C) or up to 175°F (79°C) for softer texture
  • Stuffing center: 165°F (74°C)

Check the thickest part of the thigh without touching bone. Bone conducts heat and gives a false high reading.

Step-By-Step Roasting Method

  1. Heat your oven to 350°F (175°C). Move a rack to the lower-middle position.
  2. Pat the chicken dry with paper towels. Dry skin equals crisp skin.
  3. Rub the outside with oil or butter. Season well with salt and pepper inside and out.
  4. Place the bird breast-side up in a roasting pan. Tuck the wings back.
  5. Roast uncovered. Baste once or twice if you like, though it is not required.
  6. Start checking temperature about 20 minutes before your estimated finish time.
  7. Pull the chicken when the thigh reads 165°F (74°C).
  8. Rest it for 15 to 20 minutes before carving. The temp will rise a few more degrees.

Should You Roast Covered Or Uncovered?

Uncovered gives you crispy skin, which most people want. Cover with foil only if the skin is browning too fast. If you cover the whole time, the skin turns soft and pale.

Stuffed Vs Unstuffed Timing

Stuffing adds mass and blocks heat from the inside. A stuffed 5-pound chicken can take close to 2 hours. Loose stuffing in the cavity cooks faster than a tightly packed one.

Honestly, I prefer roasting the bird unstuffed and baking the stuffing in a separate dish. It cooks quicker and safer.

Factors That Change Cooking Time

Oven Temperature

At 375°F (190°C), shave about 5 minutes per pound off the 350°F times. At 325°F (165°C), add roughly 5 minutes per pound. Higher heat browns faster but risks dry breast meat.

Chicken Size And Shape

A wide, flat bird cooks faster than a tall, plump one of the same weight. A spatchcocked chicken, with the backbone removed, roasts in about 45 minutes at 425°F (220°C) no matter the size.

Starting Temperature

A chicken straight from the fridge needs extra time. Let it sit at room temperature for 30 minutes before roasting. This also helps it cook evenly.

Pan And Rack Choice

A rack lifts the bird so hot air circulates underneath. Without a rack, the bottom steams and the sides cook slower. A dark pan browns faster than a light one.

Signs Your Chicken Is Done

  • The thigh registers 165°F (74°C) on an instant-read thermometer
  • Juices run clear, not pink, when you pierce the thigh
  • The leg wiggles loosely in the socket
  • Skin is golden and crisp

Pink juices near the bone can happen in young birds and do not always mean undercooked. Trust the thermometer over color.

Common Timing Mistakes To Avoid

  • Relying on pop-up timers, which often trigger late or early
  • Opening the oven too often, which drops the heat
  • Skipping the rest, which lets juices run out and dries the meat
  • Checking temperature too early and losing heat each time

Resting And Carving

Rest the chicken on a cutting board for 15 to 20 minutes, tented loosely with foil. This lets the juices settle back into the meat. Carve the legs first, then the wings, then slice the breast against the grain.

If you need to hold it longer, keep it in a warm oven at 150°F (65°C) and cover it. Beyond 30 minutes, the skin softens.

Quick Reference Summary

  • Temperature: 350°F (175°C)
  • Time: 20 minutes per pound stuffed, 15 to 18 unstuffed
  • Target temp: 165°F (74°C) in the thigh
  • Rest: 15 to 20 minutes

Weigh your bird, set a timer for the low end of the range, and start checking early. The thermometer decides when it’s done, not the clock. Follow that and your roast chicken comes out juicy every time.

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