What should a resting pulse rate be?

In general: 60-90 but can be lower in fit people.

60-100: Normal heart rate varies between 60-100 beats per minute (BPM) at rest.

60-100 bpm.: Assuming the underlying heart rhythm is normal, a heart rate between 60 and 100 bpm would be considered normal at rest. Would go above 100 temporarily with activity, and may be under 60 at rest in someone who’s athletic.