RHR Calculator

June 8, 2026

This RHR Calculator helps you determine your Resting Heart Rate (RHR), which is the number of heartbeats per minute when your body is fully at rest.

Resting Heart Rate Calculator

This RHR Calculator helps you determine your Resting Heart Rate (RHR), which is the number of heartbeats per minute when your body is fully at rest.

RHR Formula

RHR = total heartbeats ÷ time (minutes)

Parameters Explained

Total heartbeats: the number of beats counted at rest
Time: the duration in minutes used for counting

How It Works

The calculator divides the number of heartbeats by the time measured to estimate your resting heart rate in beats per minute (bpm).

Ethan Caldwell

Ethan builds the interactive health calculators on Height Growth Blog. Based in Denver, Colorado, he combines a software engineering background with a focus on evidence-based health tech, turning dense clinical guidelines — from CDC growth charts to NIH/IOM dietary references — into tools parents and teens can use in under a minute. Every calculator on the site, from BMI Percentile to Body Fat and Calcium Intake, is built directly from primary sources (NIH, AAP, CDC, Mayo Clinic) and cross-checked against peer-reviewed studies before launch.