Cooking Time Calculator | Weight, Method & Temperature
Estimate cooking time from food type, weight, method, oven temperature, and doneness target. Includes side-dish timing, rest reminders, copyable plans, and doneness checklists.
Cooking Timeline
Start
18:00
Halfway
6:44 PM
Check
7:28 PM
Serve
7:38 PM
Cook time
1h 28m
Rest time
10 min
Total time
1h 38m
Target temp
165°F
Weight
Oven Temperature
Start Time
Cooking Method
Safe Internal Temp
165°F / 74°C
Always verify with a food thermometer
Options
Covering adds ~8% more time but retains moisture.
Doneness Checklist
Side Dish (parallel cooking)
Food safety reminder
Times are estimates based on weight and method. Always confirm with a calibrated instant-read thermometer. Cooking to the correct internal temperature is essential for food safety. Let rest for 10 minutes before cutting for juicier results.
What Is the Cooking Time Calculator?
The formula uses minutes-per-pound as a baseline, then adjusts for oven temperature, cooking method, and doneness. It's not a substitute for a thermometer — but it tells you when to start checking.
All estimates target USDA safe internal temperatures: 165°F for poultry, 145°F for beef, pork, lamb, and fish. The timeline maps out when to check temperature and when the meat will be ready after resting, so you can plan the rest of the meal around it.
Cooking Time Calculator Formula and Method
Base time (min) = weight_lbs × minutes_per_lb.
Adjusted time = base × oven_factor × cover_factor × method_factor × doneness_factor.
Oven factors: <350°F = 1.18×, 350-375°F = 1.0×, 400-425°F = 0.90×, >425°F = 0.86×.
Cover factor: covered = 1.08×.
Method: air fryer = 0.80×, slow cooker = 4.6×, smoker = 1.8×.
How to Use
- 1
Select the food type from the eight icons: Chicken, Turkey, Beef Roast, Pork Roast, Lamb, Fish, Vegetables, or Casserole. Each has a different base rate — chicken is about 20 min per pound, turkey 15 min per pound unstuffed, pork roast 25 min per pound.
- 2
Enter your food's weight and select pounds or kilograms. For poultry, use the packaging weight. For bone-in roasts, use the full weight including bone — the calculator's rates already account for that.
- 3
Set your oven temperature. Below 350°F adds about 18% to the time. At 425°F+ you're about 14% faster. Higher temps brown the exterior quickly but risk the outside finishing before the interior catches up on large cuts.
- 4
Choose your cooking method: Oven (baseline), Air Fryer (0.80× — 20% faster), Slow Cooker (4.6× — for collagen-rich cuts), or Smoker (1.8× — runs at 225-250°F rather than 350°F).
- 5
Select doneness for beef or lamb: Rare 125°F, Medium-Rare 135°F, Medium 145°F, Well Done 160°F. For everything else, the calculator targets USDA safe temperature — chicken and turkey to 165°F, pork to 145°F.
- 6
Toggle Covered or Uncovered. A lid or foil adds roughly 8% to cooking time but keeps lean cuts juicier. Cook poultry uncovered for crispy skin — steam prevents it from crisping.
- 7
Enter your planned start time. The calculator shows three timestamps: when to put it in, when to start checking temperature (80% of cook time), and when to serve after resting.
- 8
Use an instant-read thermometer in the thickest part of the meat, away from bone. Ovens can run 25-50°F off their dial temperature. The calculated time plans the cook; the thermometer confirms it's done.
Cooking Time Calculator Example
Sunday roast chicken: 5 pounds, oven at 375°F, uncovered. Base rate 20 min per pound: 5 × 20 = 100 minutes. All factors at 375°F are 1.0×. Total estimated cook time: 100 minutes. Add 10 minutes resting — 1 hour 50 minutes from oven to table.
Start time 5:00pm. Check internal temperature at 6:20pm (80% of cook time). Expected done around 6:40pm; rest tented with foil for 10 minutes; serve at 6:50pm. The thermometer reads 158°F at the check — back in for 15 minutes, reads 166°F at 6:35pm. Within 5 minutes of the estimate.
Understanding Cooking Time
USDA Safe Temperatures — the Short Version
Chicken and turkey: 165°F (74°C) at the thickest part away from bone. Check three spots on a whole bird — all three must hit 165°F. Beef, pork, lamb, and fish: 145°F (63°C) with a 3-minute rest. Ground meat requires 160°F. Only a thermometer tells you what the temperature actually is inside.
Why Resting Matters More Than You Think
Two things happen when meat rests off heat. First, carryover cooking raises internal temperature 5-10°F — a beef roast pulled at 130°F reaches 135-140°F during a 10-minute rest. Second, muscle fibres relax and reabsorb juices that got squeezed toward the surface. Steaks need 5 minutes; whole chicken 10 minutes; large roasts 15-20 minutes; turkey 30 minutes.
Cooking Method Differences That Actually Matter
An air fryer is a compact convection oven — about 20% faster than a standard oven, with crispier skin. The slow cooker runs at 180-212°F and suits collagen-rich cuts over 6-8 hours; it's poorly suited for lean cuts, which go mushy. A smoker runs at 225-250°F and takes about 1.8× the oven time. A 5-pound pork shoulder: 2 hours in an air fryer, 5 hours in a 325°F oven, 9 hours in a slow cooker, 9-10 hours in a smoker.
Covered vs Uncovered, and the Doneness Spectrum for Beef
Foil or a lid creates steam, adding roughly 8% to cooking time. That's worth it for lean cuts like pork loin that dry out quickly. For crispy-skin poultry, cook uncovered throughout. For beef and lamb: Rare at 120-125°F has a bright red centre and loses the least moisture. Medium-rare at 130-135°F is the ideal balance. Medium at 145°F still has some pink. Well-done at 160°F+ is grey throughout and noticeably drier.
Frequently Asked Questions
How long to cook chicken per pound?
A whole chicken at 350-375°F takes about 20 minutes per pound, plus a 10-minute rest. A 4-pound bird needs roughly 80 minutes; a 6-pound bird about 2 hours. Always confirm with a thermometer at 165°F in the inner thigh. Bone-in pieces: 35-45 minutes regardless of weight.
What temperature should a beef roast be?
USDA minimum for whole muscle beef is 145°F, followed by a 3-minute rest. Personal preference: rare 120-125°F, medium-rare 130-135°F, medium 145°F, well-done 160°F+. Pull the roast 5-10°F before your target — carryover cooking during the rest raises it the rest of the way.
How long does turkey take per pound?
An unstuffed turkey at 325°F takes about 15 minutes per pound — a 12-pound bird needs roughly 3 hours; a 20-pound bird 4.5-5 hours. Stuffed turkeys need 30-60 minutes extra and the stuffing must reach 165°F. For birds over 14 pounds, 325°F prevents breast meat from overcooking before the thigh is done.
How much faster is an air fryer than oven?
About 20% faster at the same set temperature. A 90-minute oven roast becomes roughly 70-75 minutes in an air fryer. The convection fan circulates hot air continuously, transferring heat far more efficiently than still air. Many recipes also suggest dropping temperature by 25°F compared to oven settings.
How long should meat rest after cooking?
Steaks and chops: 5 minutes. Whole chicken: 10 minutes. Beef and pork roasts: 15-20 minutes. Turkey over 14 pounds: 30 minutes. Temperature keeps rising 5-10°F during rest and juices reabsorb into the muscle. Tent loosely with foil to retain warmth without softening any crust.
What is carryover cooking?
Carryover cooking is the temperature rise that happens after you remove meat from the oven. The hotter outer layers transfer heat inward toward the cooler centre, raising it 5-10°F without any additional heat. Pull a steak at 125°F for medium-rare and the rest period does the last 10°F. Larger cuts have more carryover because they hold more residual heat.
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