Work out beef doneness time instantly with clear inputs, formula shown and shareable results.
Time is minutes per kilogram for the chosen doneness plus a 20 minute base; the joint is pulled about 3 C below target because carryover cooking continues while it rests. Beef doneness is a temperature, not a time, and ignoring the few degrees of carryover is the usual reason a medium-rare joint arrives medium.
Roasting time
minutes = weight in kg x minutes per kg for the doneness + 20
Carryover
remove from oven about 3 C below the target internal temperature
minutes = weight in kg x minutes per kg for the doneness + 20. Time is minutes per kilogram for the chosen doneness plus a 20 minute base; the joint is pulled about 3 C below target because carryover cooking continues while it rests.
Beef doneness is a temperature, not a time, and ignoring the few degrees of carryover is the usual reason a medium-rare joint arrives medium.
Enter joint weight, doneness wanted. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.