Heartbeat
A heartbeat is the regular contraction of the heart that pumps blood through the body.
How big is it?
1 s
Time · reference interval
A little perspective
About 6.67 times the time of Blink of an eye.
Blink of an eye: A blink of an eye is the quick closing and opening of the eyelid, usually happening involuntarily.
Measurements, assumptions & sources +
Heartbeat
One beat per second corresponds to 60 beats per minute; this is a timing example.
Defined examples — our methodology
The marked time is calibrated. Unmeasured illustration details are representative.
Blink of an eye
A chosen 150 ms interval, not a universal blink duration.
Defined examples — our methodology
The marked time is calibrated. Unmeasured illustration details are representative.
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Why this measurement?
Why we use 1 s
For comparison, this page uses time. This is labelled reference interval: an explicit comparison model rather than a claim that every example has the same value.
One beat per second corresponds to 60 beats per minute; this is a timing example.
The identifying illustration and the numerical comparison remain separate. How calibrated comparisons work →
Recorded properties
Heartbeat dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 1 s | Not recorded | reference interval |
Around this scale
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These links use compatible time records, ordered around the selected value.
Nearest lower value · TimeBlink of an eye150 msA blink of an eye is the quick closing and opening of the eyelid, usually happening involuntarily.
Nearest higher value · GravityParabolic-flight microgravity arc22 sA parabolic-flight microgravity arc is a flight manoeuvre that creates short periods of near-weightlessness for people and experiments inside an aircraft.Sources and method
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The source records and measurement method remain available for inspection.
More ways to see it
Curated comparisons
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Follow your curiosity.
TimeBlink of an eye150 msA blink of an eye is the quick closing and opening of the eyelid, usually happening involuntarily.TimeHuman lifetime80 yearsA human lifetime is the span from a person's birth to their death.
TimeAge of Earth4.54 GyrThe age of Earth is the time that has passed since the planet formed from the solar nebula.TimeAge of the universe13.8 GyrThe age of the universe is the time since the Big Bang, marking the beginning of cosmic expansion.GravityParabolic-flight microgravity arc0.02 NA parabolic-flight microgravity arc is a flight manoeuvre that creates short periods of near-weightlessness for people and experiments inside an aircraft.
TimeCinema frame at 24 frames per second41.67 msA cinema frame at 24 frames per second is the time interval between consecutive images in standard film projection.GravityTen-metre centrifuge at two rpm0.4387 NA ten-metre centrifuge at two rpm is a rotating device used to simulate artificial gravity by spinning samples at a controlled speed.
PeopleRed-cell circulation time1 minRed-cell circulation time is the typical duration for a red blood cell to complete a full circuit through the human circulatory system at rest.