Meat Roasting Time Calculator - Beef, Lamb, Pork & More

How to use this tool

1. Select the type of meat.
2. Enter the weight in pounds or kg.
3. Choose desired doneness and read estimated roasting time.

Roasting time guide

Enter the roast weight and use the result as a planning estimate. For most meats, the calculator multiplies pounds by a typical minutes-per-pound rate; whole chicken uses the published weight bands instead. Beef and lamb show a range because the cut changes the timing. Choosing a doneness changes the displayed target temperature, not the clock rate. Ovens, roast shape, bone, starting temperature, and how often the oven door opens can all change the actual time.

The beef range covers chart timings for several common cuts, from bone-in rib to round or rump; the lamb range covers bone-in and boneless leg roasts. FoodSafety.gov lists Boston butt at about 45 minutes per pound at 350°F, which is why the shoulder estimate is longer than pork loin. Those are safety and timing references, not promises that a roast will be ready at a particular time. Pork shoulder cooked for shredding may need additional time until tender; 145°F is its safe minimum, not a pulled-pork tenderness target.

Whole chicken uses the chart's two published weight bands. The FoodSafety.gov roasting chart gives these times for a 350°F oven. The calculator shows no chicken time outside those weight bands; always check the temperature. For a whole turkey, use the dedicated Turkey Calculator.

FoodSafety.gov lists 145°F (63°C) followed by at least 3 minutes of rest as the safe minimum for whole beef, lamb, and pork cuts; poultry should reach 165°F (74°C). Rare and medium-rare beef or lamb settings are preference temperatures below that minimum, so the result includes a warning. Use a food thermometer in the thickest part of the roast: a clock estimate cannot confirm that meat has reached a safe temperature.

The carry-over rule

A roast may continue warming after it leaves the oven, but carry-over varies with size and shape. Do not count on it to reach a safe temperature: verify the safe minimum with a food thermometer, then rest the roast before carving. Resting also helps retain juices.

• Small cuts (chicken breasts, pork chops): rest 5 minutes
• Medium roasts (1–3 lb): rest 10–15 minutes
• Large roasts (turkey, prime rib): rest 20–30 minutes

Oven thermometer accuracy

Consumer ovens are notoriously inaccurate — calibration errors of ±25°F (±14°C) are possible. An oven thermometer helps check the actual temperature near the roast. Convection ovens circulate hot air; some recipes lower the setting by about 25°F (14°C), but the right adjustment varies by oven and recipe. Follow the oven manual and do not reduce both temperature and cooking time unless the recipe directs it.

Stuffed poultry

Stuffed whole poultry takes longer than an unstuffed bird. FoodSafety.gov advises adding 15–30 minutes to its unstuffed time range. Check the center of the stuffing as well as the bird; both must reach 165°F (74°C). Cooking stuffing separately avoids having to wait for the center of the bird to heat the stuffing safely.

Basting and foil tent

Despite popular belief, basting does not improve meat moisture — the basting liquid does not penetrate the surface and only adds color. A more effective technique is a foil tent: loosely drape foil over the top of the roast during the final 30 minutes of cooking to slow surface browning while the center finishes cooking. Remove the foil entirely for the last 10 minutes if you want maximum skin crispness.