is also the amount of energy expended while at rest in a neutrally temperate environment.
Basal metabolic rate (BMR) is the amount of energy expended while at rest in a neutrally temperate environment. Find out your BMR with this handy calculator! Basal metabolic rate (BMR) is the amount of energy expended while at rest in a neutrally temperate environment, in the post-absorptive state (meaning that the digestive system is inactive, which requires about twelve hours of fasting).