Enter the weight in pounds and choose the cut. The calculator multiplies weight by the
standard minutes-per-pound guideline for that meat and oven temperature, then converts
the total to hours and minutes. These are planning estimates — always confirm doneness
with a meat thermometer.
Turkey, chicken, beef, pork & ham·Minutes-per-pound method·Updates as you type
Food safety — read this first
Cooking times are estimates for planning only. Oven calibration, starting
temperature, bone-in vs. boneless, stuffed vs. unstuffed, and roast shape all shift actual
time. The only safe way to know meat is done is to measure the internal temperature at the
thickest point (not touching bone) with an instant-read thermometer. Safe minimums per
USDA: poultry 165°F, ground meat 160°F,
whole-muscle beef, pork, lamb & veal 145°F (+ 3-minute rest).
Follow USDA guidance.
Enter the raw oven-ready weight and choose the cut. The result is a planning estimate — start checking internal temperature early and confirm doneness with a meat thermometer.
Use the raw oven-ready weight from the package label.
Minutes per pound varies by cut, stuffing, and oven temperature.
Confirm with a thermometer. Start checking internal temperature
15–20 minutes before this estimate. Doneness is determined by temperature,
not time. Follow USDA safe minimum internal temperatures.
How it works
The minutes-per-pound formula
The formula is a single multiplication:total minutes = weight (lb) × minutes per pound.
For a 12 lb unstuffed turkey at 325°F using 13 min/lb:
12 × 13 = 156 minutes.
Converting to hours: 156 ÷ 60 = 2 hours, 36 minutes.
The minutes-per-pound figure comes from USDA and culinary-authority guidelines for
each cut roasted at a standard oven temperature. It captures the rough relationship
between mass and heat penetration for a given shape of meat. It is a starting
point, not a guarantee — shape matters as much as weight. A long thin pork
loin of the same weight as a compact round pork shoulder will cook faster, because heat
does not have to travel as far to the center.
Always use the formula with a thermometer. The output tells you roughly
when to start checking. Poultry is done at 165°F in the thickest part of the thigh
(not touching bone), and if it is stuffed, the stuffing must also reach 165°F.
Beef and pork whole-muscle cuts are done at 145°F with a 3-minute rest.
Quick-reference time chart
Estimated total cook times for common weights, using the minutes-per-pound presets in
this calculator. All times are approximate and assume an uncrowded oven at the stated
temperature. Confirm doneness with a meat thermometer.
Cut & method
Oven tempdegrees F
Min/lbguideline
8 lbest. time
12 lbest. time
16 lbest. time
Safe tempthermometer
Turkey, unstuffed
325°F
13
1 hr 44 min
2 hr 36 min
3 hr 28 min
165°F thigh
Turkey, stuffed
325°F
15
2 hr 0 min
3 hr 0 min
4 hr 0 min
165°F thigh & stuffing
Whole chicken
375°F
20
2 hr 40 min
4 hr 0 min
5 hr 20 min
165°F thigh
Beef roast, med-rare
325°F
20
2 hr 40 min
4 hr 0 min
5 hr 20 min
130–135°F, rest 15 min
Pork loin
350°F
25
3 hr 20 min
5 hr 0 min
6 hr 40 min
145°F + 3 min rest
Bone-in ham, reheat
325°F
15
2 hr 0 min
3 hr 0 min
4 hr 0 min
140°F (pre-cooked ham)
Times calculated as weight × minutes-per-pound, converted to hours and minutes.
These are planning estimates. Shape, starting temperature, bone content, and oven
calibration all affect actual cook time. Always verify doneness with an instant-read
thermometer. USDA safe minimum internal temperatures: poultry 165°F, ground meat 160°F,
whole-muscle beef/pork/lamb/veal 145°F (+ 3-minute rest).
Reading the result
Four things to keep in mind when using a minutes-per-pound estimate to plan your cook.
Time is a planning tool, not a doneness test
The estimate tells you roughly when to start checking — not when to eat. Set a timer for about 15 to 20 minutes before the estimate runs out and insert your thermometer. The only reliable doneness test is an internal temperature reading at the thickest point, not touching bone.
Shape affects cook time as much as weight
Heat travels inward from the surface. A compact round roast of the same weight as a flat butterflied cut will take longer to reach temperature at the center, because the heat has farther to travel. The minutes-per-pound formula assumes a roughly average shape for each cut. Unusually thin or flat pieces cook faster; unusually compact or thick pieces cook slower.
Starting temperature shifts the result
A roast pulled straight from the refrigerator is around 38°F and needs to climb 100 or more degrees to reach a safe temperature. A roast left to temper at room temperature for an hour starts that climb partway done. Standard guidelines assume refrigerator-cold meat. If you temper the roast, expect to finish a bit earlier.
Rest time is part of the cook
Internal temperature rises 5 to 10 degrees during resting as residual heat from the outer layers moves inward — this is called carryover cooking. Pull whole-muscle beef and pork roasts at 5 to 10 degrees below the target and let them rest, tented loosely with foil, for 15 to 20 minutes. Poultry still needs to reach 165°F before it comes out of the oven.
Cooking time glossary
The key terms behind the calculator, in plain English.
Minutes per pound
A cooking guideline that estimates total oven time by multiplying the meat's weight by a fixed rate for that cut and temperature. It works because heat penetration time scales roughly with mass for a given shape. It is an approximation, not a physical law — use it alongside a thermometer.
Carryover cooking
The temperature rise that continues after meat is removed from the oven, as retained heat from the outer layers moves inward. Whole-muscle roasts typically rise 5–10°F during a 15-minute rest. This is why recipes tell you to pull the meat a few degrees below the target temperature.
Safe internal temperature
The minimum internal temperature at which a meat is considered safe to eat by USDA standards. Poultry: 165°F.Ground meats: 160°F.Whole-muscle beef, pork, lamb, veal: 145°F with a 3-minute rest. These are not targets for doneness preference — they are food-safety minimums.
Instant-read thermometer
A probe thermometer that gives a temperature reading within a few seconds. Insert it into the thickest part of the meat, not touching bone, for an accurate reading. The USDA and food-safety authorities recommend using one to verify every roast — time estimates cannot substitute for a measured temperature.
Resting
Holding cooked meat off the heat, loosely tented with foil, for 15–20 minutes before carving. Resting allows juices to redistribute and carryover cooking to finish. Slicing immediately drives the juices out onto the board; slicing after resting keeps them in the meat.
Frequently asked
An unstuffed turkey roasted at 325°F takes approximately 13 minutes per pound. A stuffed turkey takes about 15 minutes per pound because the stuffing slows heat penetration to the center. These are planning estimates — always confirm the thigh has reached 165°F, and if the bird is stuffed, check that the stuffing has reached 165°F too. Use the calculator above to get the time for your specific weight.
A whole chicken roasted at 375°F takes approximately 20 minutes per pound as a planning estimate. A 4-pound chicken is about 80 minutes; a 5-pound chicken is about 100 minutes. Shape, cavity size, and whether the bird is trussed all affect actual cook time. Always confirm the thickest part of the thigh (not touching bone) reads at least 165°F before serving.
A beef roast cooked to medium-rare at 325°F takes approximately 20 minutes per pound as a starting estimate. Actual time depends heavily on the shape of the roast. Use a thermometer: 130–135°F for medium-rare, 140–145°F for medium. Pull the roast 5°F below your target and let it rest 15–20 minutes — carryover cooking will finish the job.
The USDA recommends whole cuts of pork reach 145°F as measured by a food thermometer, followed by a 3-minute rest. Ground pork should reach 160°F. The old guideline of 160°F for whole pork was revised by the USDA in 2011 — 145°F with a rest is safe and produces noticeably juicier results.
Time is a planning tool, not a food-safety test. Oven temperature accuracy, the starting temperature of the meat, bone-in vs. boneless, shape of the roast, stuffed vs. unstuffed, and whether a lid is on all shift actual cook time. The only reliable way to know meat is safe is to measure the internal temperature at the thickest point with a calibrated instant-read thermometer, not touching bone.
Yes. The stuffing is a cold dense mass in the center of the bird that slows heat penetration. The guideline for stuffed turkey at 325°F is about 15 minutes per pound versus about 13 minutes per pound for unstuffed. Critically, the stuffing itself must reach 165°F — not just the turkey meat — before the bird is safe. Many cooks bake stuffing separately to avoid this constraint and reduce total oven time.
Common mistakes
Four ways the minutes-per-pound estimate gets misused — and why relying on time alone is a food-safety risk.
Trusting the time instead of confirming with a thermometer
The minutes-per-pound formula is a planning guide, not a doneness test. Oven calibration, the starting temperature of the meat, bone-in vs. boneless, roast shape, and whether the meat is stuffed all shift actual cook time away from the estimate. The only reliable way to confirm that poultry, pork, or beef is safe is to measure the internal temperature at the thickest point (not touching bone) with an instant-read thermometer. Per USDA guidelines: poultry 165°F, ground meat 160°F, whole-muscle beef and pork 145°F with a 3-minute rest. Always confirm with a thermometer — the time tells you when to start checking, not when it’s done.
Using the wrong minutes-per-pound rate for stuffed birds
A stuffed turkey needs about 15 min/lb at 325°F versus about 13 min/lb unstuffed, because the stuffing is a cold, dense mass that slows heat penetration to the centre. Two errors compound here: using the unstuffed rate for a stuffed bird, and forgetting that the stuffing itself must reach 165°F (USDA) — not just the thigh meat. Many food safety authorities recommend baking stuffing separately precisely because hitting 165°F in the stuffing often requires overcooking the bird.
Using package weight instead of oven-ready weight
The weight printed on poultry packaging includes the giblet bag, neck, and any absorbed liquid. The minutes-per-pound rate applies to the oven-ready weight — the trimmed, dried bird you actually put in the pan. Using the higher package weight produces an overestimated time, which combined with an already-generous formula, can push a bird past done before you pull it. Weigh the bird after prep, or at minimum subtract the weight of the giblet bag (typically 3–4 oz).
Pulling the roast at the target temperature instead of 5–10°F below it
Internal temperature rises 5–10°F after meat leaves the oven as residual heat from the outer layers continues moving inward — this is carryover cooking. For beef roasts, pull at 5–10°F below the target and rest, loosely tented, for 15–20 minutes. Poultry is the exception: it must reach 165°F before it comes out of the oven. Always confirm the final temperature with a thermometer after resting, never before.