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Is a resting heart rate of 104 good?

A resting heart rate of 104 bpm is lower than under 1% of adults, on a distribution with mean 70 and SD 11. Lower usually means fitter: endurance athletes sit near 50, and the American Heart Association calls 60 to 100 normal.

Percentile
<1%
of adults have a higher resting heart rate than 104 bpm
104 bpm

Very highBand from our heart rate test. The American Heart Association's normal range for adults is 60 to 100 bpm; this is above it, which is worth a check if it persists at rest.

104 bpm by group

Percentile

Normal curve, mean 70, SD 11
GroupMeanHigher than you1 in X
Adults70 bpm<1%1 in 1,002

Reference points

Common reference rates and the share of adults above each
WhobpmAdults higher
Endurance athletes, typical5097%
AHA normal range, low end6082%
Adult mean7050%
AHA normal range, high end100<1%
This page104<1%

Bands

Share of adults in each band of our heart rate test, from the normal curve
BandResting bpmShare of adults
Athleticup to 503%
Excellent51 to 6015%
Good61 to 7032%
Above average71 to 8032%
Below average81 to 9015%
High91 to 1003%
Very highover 100<1%

Percentile is the share of adults with a higher resting heart rate, so a lower rate gives a higher percentile. “1 in X” counts the rarer side: people at or beyond this value above the median, at or under it below. Percentiles are estimated from a normal distribution with mean 70 bpm and SD 11.

What this means

  • 104 bpm is about 149,760 beats a day, 54.7 million a year. At the mean of 70 it is 100,800 a day, so this heart does 48,960 more.
  • Endurance athletes often rest near 50 bpm, and the lowest widely reported, for the cyclist Miguel Indurain, was 28. 104 is 54 bpm above the athlete mark.
  • Over 100 at rest is tachycardia on paper. Most causes are benign and temporary, such as caffeine, fever or anxiety, but persistent readings over 100 are a reason to see a doctor.
  • Measure after five quiet minutes, count a full 60 seconds, and do it on a few mornings. Caffeine, heat, a cold, a short night and the act of being measured all push the number up.

Questions

Is a resting heart rate of 104 good?
104 bpm is lower than under 1% of adults, going by a mean of 70 and SD of 11. Above the AHA's normal range of 60 to 100. Persistent readings over 100 at rest are worth a doctor's visit.
What is a normal resting heart rate?
The American Heart Association calls 60 to 100 bpm normal for adults. Population studies put the mean near 70 with an SD of about 11, so two thirds of adults sit between 59 and 81. Endurance athletes are often in the 40s and 50s.
How rare is a resting heart rate of 104?
About 1 in 1,002 adults have a resting rate this high or higher. That is 3.1 standard deviations above the mean.

Source: Resting heart rate distribution: Janssen et al. 1993 and Cooney et al., JAMA Internal Medicine 2013, adult mean about 70 bpm, SD 11. Normal range 60 to 100: American Heart Association. Percentiles are estimated from a normal distribution with mean 70 bpm and SD 11.

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