🍖 Meat & Poultry Roasting Temperature Timer
Calculate oven roasting times, temperatures, and USDA-recommended internal meat thermometer temperatures for Beef, Turkey, Chicken, Pork, and Lamb.
Note: 135°F is below the USDA's 145°F safe minimum internal temperature for whole-muscle beef, pork, and lamb roasts. USDA FSIS recommends cooking these roasts to at least 145°F (63°C) with a 3-minute rest for food safety; this preset targets a culinary medium-rare doneness below that minimum.
The USDA food-safety minimum rest is 3 minutes; the 15-minute rest shown above is recommended for optimal juiciness and carryover cooking.
What Meat & Poultry Roasting Temperature Timer Does
This timer estimates oven time for six common roasts from a weight in pounds, and reports the oven temperature, the target internal temperature, and a resting time for each. The estimate is a straight minutes-per-pound calculation using the profile for the cut and doneness you pick, so it gives you a number to plan the rest of the meal around.
The important number on the page is not the time — it is the internal temperature. Time from weight is a planning estimate. Doneness is a measured fact, and the only instrument that establishes it is a food thermometer in the thickest part of the meat, away from bone and fat. Two roasts of identical weight can differ by half an hour because one is a thin flat cut and the other is a thick compact one, because one went in fridge-cold and the other sat out, or because an oven runs hot.
One preset deliberately targets a temperature below the federal safe minimum, and the tool says so on screen when you select it. Roast Beef (Medium Rare) aims at 135°F. The USDA safe minimum for whole-muscle beef, pork, veal and lamb is 145°F with a 3-minute rest. Medium-rare beef is a widely cooked culinary standard and this tool will calculate it, but it is below the published safety threshold and that is stated rather than hidden.
How to Use Meat & Poultry Roasting Temperature Timer
- Select your meat cut and preferred doneness level
- Enter meat weight in pounds (lbs)
- Review estimated oven time, preheat temperature, target internal temp, and resting minutes
Formula Used by Meat & Poultry Roasting Temperature Timer
Roasting time from weight
Total minutes = round(weight in pounds × minutes per pound for the selected profile)
- weight in pounds
- Raw weight of the roast as it goes into the oven
- minutes per pound
- Fixed per profile: 22 for medium-rare beef, 25 for medium beef, pork loin and leg of lamb, 20 for whole chicken, 15 for whole unstuffed turkey
Worked example
The default state: a 4.5 lb roast on the Roast Beef (Medium Rare) profile, which uses 22 minutes per pound.
- 4.5 × 22 = 99 minutes
- 99 ÷ 60 = 1 hour, remainder 39 minutes
Result: 1 hr 39 min at 325°F (163°C), pulled at 135°F (57°C) internal, then rested 15 minutes. Note that turkey uses the lowest rate on the list at 15 min/lb — a bird is hollow, so it cooks faster per pound than a solid joint of the same weight.
Fahrenheit to Celsius, as the tool rounds it
°C = round((°F − 32) × 5 ÷ 9)
- round
- To the nearest whole degree — the tool does not display a decimal
Worked example
The three internal temperatures used by the six profiles: 135°F, 145°F and 165°F.
- (135 − 32) × 5 ÷ 9 = 57.2 → 57°C
- (145 − 32) × 5 ÷ 9 = 62.8 → 63°C
- (165 − 32) × 5 ÷ 9 = 73.9 → 74°C
Result: 57°C, 63°C and 74°C. The USDA publishes the same two safety figures as 62.8°C and 73.9°C; the whole-degree rounding here is the only difference, and it rounds upward in both cases.
The Six Profiles, and How They Compare to the USDA Minimum
Profile values read from the tool. USDA column from the FSIS Safe Minimum Internal Temperature Chart, last updated 14 April 2025.
| Profile | Oven | Min/lb | Target internal | Rest | USDA minimum | At or above it? |
|---|---|---|---|---|---|---|
| Roast Beef (Medium Rare) | 325°F / 163°C | 22 | 135°F / 57°C | 15 min | 145°F + 3 min rest | No — 10°F below, flagged on screen |
| Roast Beef (Medium) | 325°F / 163°C | 25 | 145°F / 63°C | 15 min | 145°F + 3 min rest | Yes — exactly at it |
| Whole Turkey (Unstuffed) | 325°F / 163°C | 15 | 165°F / 74°C | 20 min | 165°F, all poultry | Yes |
| Whole Roast Chicken | 375°F / 191°C | 20 | 165°F / 74°C | 10 min | 165°F, all poultry | Yes |
| Pork Loin Roast | 350°F / 177°C | 25 | 145°F / 63°C | 10 min | 145°F + 3 min rest | Yes — exactly at it |
| Leg of Lamb (Medium) | 325°F / 163°C | 25 | 145°F / 63°C | 15 min | 145°F + 3 min rest | Yes — exactly at it |
USDA Safe Minimum Internal Temperatures
The full federal chart, including the categories this tool has no preset for. Measured with a food thermometer before the food comes off the heat.
| Product | Minimum internal temperature | Rest time required |
|---|---|---|
| Beef, pork, veal and lamb — steaks, chops, roasts | 145°F (62.8°C) | At least 3 minutes |
| Ground meats | 160°F (71.1°C) | None specified |
| All poultry — whole bird, breasts, legs, thighs, wings, giblets, stuffing | 165°F (73.9°C) | None specified |
| Ground poultry | 165°F | None specified |
| Ham, fresh or smoked, uncooked | 145°F (62.8°C) | At least 3 minutes |
| Fully cooked ham, to reheat | 140°F if USDA-inspected, 165°F otherwise | None specified |
| Eggs | 160°F (71.1°C) | None specified |
| Fish and shellfish | 145°F (62.8°C) | None specified |
| Leftovers and casseroles | 165°F (73.9°C) | None specified |
Kilograms to Pounds, With the Times This Tool Returns
This tool has no metric input. Convert first with lb = kg ÷ 0.45359237, then enter the pounds. Times computed from the profiles above.
| Weight in kg | Weight in lb | Beef medium-rare (22 min/lb) | Whole turkey (15 min/lb) |
|---|---|---|---|
| 1 kg | 2.20 lb | 49 min | 33 min |
| 1.2 kg | 2.65 lb | 58 min | 40 min |
| 1.5 kg | 3.31 lb | 1 hr 13 min | 50 min |
| 2 kg | 4.41 lb | 1 hr 37 min | 1 hr 6 min |
| 2.5 kg | 5.51 lb | 2 hr 1 min | 1 hr 23 min |
| 3 kg | 6.61 lb | 2 hr 26 min | 1 hr 39 min |
Whole Unstuffed Turkey at 15 min/lb, 325°F
What this tool returns across common bird sizes. Stuffing a bird changes both the time and the safety requirement — see the limitations.
| Bird weight | Estimated oven time | Target internal | Rest |
|---|---|---|---|
| 10 lb | 2 hr 30 min | 165°F / 74°C | 20 min |
| 12 lb | 3 hr 0 min | 165°F / 74°C | 20 min |
| 14 lb | 3 hr 30 min | 165°F / 74°C | 20 min |
| 16 lb | 4 hr 0 min | 165°F / 74°C | 20 min |
| 20 lb | 5 hr 0 min | 165°F / 74°C | 20 min |
How to Read Your Result
The USDA minimum has to be reached before the roast leaves the oven
The FSIS chart is explicit that these temperatures are measured "before removing food from the heat source." That rules out the common shortcut of pulling a roast early and counting on carryover heat to carry it over the line — carryover is real and it does raise the internal temperature during the rest, but the federal guidance does not treat it as part of reaching the minimum. The 3-minute rest specified for beef, pork, veal and lamb is time held at or above 145°F, not a period during which the meat is expected to climb to it.
Two rest times are being described, and they are not the same thing
The USDA rest is a food-safety requirement: 3 minutes at or above temperature for whole-muscle beef, pork, veal and lamb, during which the heat continues to destroy pathogens. The 10 to 20 minutes this tool shows is a culinary rest, which is about letting the muscle relax so juice stays in the meat instead of running onto the board. The longer rest satisfies the shorter one, but they exist for different reasons and only one of them is a safety floor.
Minutes per pound is a planning estimate, not a prediction
A fixed rate per pound assumes cooking time scales linearly with weight, and it does not. Heat enters through the surface and has to travel to the center, so a roast twice the weight is not twice as thick and generally needs fewer minutes per pound, not the same number. That is why this tool gives a lower rate for a hollow turkey (15 min/lb) than a solid beef joint (22 to 25 min/lb). Use the estimate to know when to start checking, and start checking well before the timer is up on anything large.
Color tells you nothing, and almost nobody measures
FSIS is blunt that appearance and color are not reliable indicators of either safety or doneness, and its own survey data shows how large the gap is between knowing that and acting on it: only about 15% of people consistently use a food thermometer, 6% use one for hamburgers and 10% for chicken breasts — while one hamburger in four can look fully cooked without being safely cooked. A timer of this kind is most useful precisely because it tells you when to start measuring. Put the probe into the thickest part, clear of bone, fat and gristle, which are the three things that will give you a reading that is not the temperature of the meat.
Medium-rare is a choice you are making knowingly
The 135°F medium-rare preset is 10°F below the USDA minimum, and the tool prints a warning when it is selected rather than presenting the number as a recommendation. Whole-muscle beef carries its contamination risk on the surface, which is why searing matters and why a rare steak is treated differently from rare ground beef — ground meat has that surface distributed throughout, which is why its minimum is 160°F. None of that makes 135°F compliant with the federal guidance. FSIS notes that consumers may choose to cook to higher temperatures for preference; it does not offer the same latitude downward.
Limitations & Accuracy Notes
- Pounds only. There is no kilogram input, despite almost everyone who asks about this phrasing it in kilograms — convert with lb = kg ÷ 0.45359237, or use the table above.
- Six fixed profiles. There is no prime rib, brisket, pork shoulder, duck, goose, gammon or rolled joint, and no rare or well-done option for beef beyond the two provided.
- The estimate is linear in weight. It does not account for thickness or shape, bone-in versus boneless, whether the roast went in cold from the fridge or tempered on the counter, how much the oven temperature drops when the door opens, or convection versus conventional heat.
- No stuffed-bird handling. A stuffed turkey needs longer, and the stuffing itself must reach 165°F — which usually means the breast overcooks before the center of the stuffing is safe. The USDA recommends cooking stuffing separately.
- No carryover model. The tool shows a target internal temperature and a rest time but does not predict how much the temperature will rise during that rest, which for a large roast can be several degrees.
- Oven temperatures are fixed per profile and cannot be changed, so the tool cannot answer "how long at 400°F" — a common phrasing of this question.
- Nothing here is a substitute for a food thermometer. The tool cannot know your oven, your cut or your starting temperature, and every figure it produces is an estimate to plan around rather than a measurement of doneness.
Frequently Asked Questions
What are the safe USDA internal cooking temperatures?
Why is meat resting time essential?
What are the safe minimum internal temperatures?
Why does one preset target a temperature below the safe minimum?
What is carryover cooking?
Why does the meat need to rest?
Is a timer enough, or do I need a thermometer?
Where should I put the thermometer?
References & Further Reading
- USDA FSIS — Safe Minimum Internal Temperature Chart — The federal chart every temperature on this page is checked against, including the 3-minute rest and the "before removing food from the heat source" requirement. Last updated 14 April 2025
- USDA FSIS — Doneness Versus Safety — Why color is not a reliable indicator of doneness and why a thermometer is the only way to establish it