Calculator
What is your normal HRV range?
Your own last two weeks beat any chart. Copy the nights from your app, oldest first.
All nights from
How it works
Your usual range is your average, give or take one standard deviation, from the nights before last night. Most of your nights land inside it. The 7-day average is the last seven nights, last night included.
Nights from two devices never mix, because each one measures HRV its own way.
Connect your ring or watch, and Gyroscope shows every night's HRV against your own normal, with your sleep and drinks right beside it. Open Gyroscope
