How to Use This Calculator
Select the type of meat, choose the cut, enter the weight, and select your cooking method. The calculator returns an estimated cooking time and the safe internal temperature to verify with a thermometer.
Times are based on starting from room temperature. Cold meat straight from the fridge will take longer — add 10–15 minutes per pound for very cold cuts.
Why You Still Need a Thermometer
Cooking times are estimates. Actual time varies based on your oven's accuracy, the shape of the cut, whether it was at room temperature, and how full your oven is. The only reliable way to know meat is safe is to check the internal temperature with an instant-read thermometer. Times give you a starting point; temperature tells you when it's done.
Frequently Asked Questions
How long to cook chicken breast at 400°F?
A boneless chicken breast at 400°F takes approximately 18–22 minutes for a 6oz breast and 22–26 minutes for an 8oz breast. Always verify the thickest part reaches 165°F (74°C).
How long to cook a whole chicken per pound?
A whole chicken roasted at 375°F needs approximately 20 minutes per pound, plus an additional 20 minutes. A 4lb chicken takes about 1 hour 20 minutes. Always check that the thigh meat reaches 165°F.
Does resting time count as cooking time?
No — rest time starts after the meat leaves the heat. However, the internal temperature continues to rise 3–5°F during resting (carryover cooking), which is why you can pull meat off the heat just below your target temperature.
Frequently Asked Questions
How do I calculate cooking time per pound?
Most roasts follow a minutes-per-pound rule at a given temperature. For example, beef roast at 325°F takes approximately 20–25 minutes per pound for medium-rare. Whole chicken at 375°F takes about 20 minutes per pound. Always verify with a meat thermometer — these are starting estimates, not guarantees.
Does cooking time change if I double the recipe?
For most dishes, cooking time doesn't double — it increases by 25–50%. What matters is the thickness of the food, not the total volume. Two chicken breasts take the same time as one if they're the same thickness. However, a larger roast takes longer because heat needs to penetrate to the center.
How do I adjust cooking time for a convection oven?
Convection ovens cook 20–25% faster than conventional ovens due to air circulation. Either reduce the temperature by 25°F and keep the same time, or keep the temperature and reduce the time by 20–25%. For roasting meats and vegetables, convection also produces better browning.