Sperm cell swimming
Sperm cell swimming refers to the speed at which a human sperm cell moves through fluid using its tail for propulsion.
Also known as: sperm swimming speed, spermatozoon speed
How big is it?
5 × 10⁻⁵ m/s · representative progressive speed
Representative progressive speed · representative
Typical recorded range: 2 × 10⁻⁵ m/s to 0.0002 m/s.
A little perspective
Sperm cell swimming vs Electron drift in household copper wiring: speed comparison
Electron drift in household copper wiring is about 2 times the progressive speed of a swimming sperm cell.
DISTANCE IN ONE SECOND
Sperm cell swimming refers to the speed at which a human sperm cell moves through fluid using its tail for propulsion.
50 µm in 1 s
This refers to the slow average movement of electrons through copper wire when an electric current flows.
100 µm in 1 s
Measurements, assumptions & sources +
Sperm cell swimming
Representative progressive speed: 5 × 10⁻⁵ m/s; representative; range 2 × 10⁻⁵ m/s–0.0002 m/s.
A representative 50 micrometres per second progressive swimming speed for a human sperm cell under laboratory observation. Individual cells, sample preparation, medium and measurement method produce a broad distribution.
NCBI — Human sperm motility assessment
The marked representative progressive speed is calibrated. Unmeasured illustration details are representative.
Electron drift in household copper wiring
Representative charge-carrier drift speed: 0.0001 m/s; representative model; range 1 × 10⁻⁶ m/s–0.01 m/s.
A representative 0.1 mm/s electron drift speed in a current-carrying household copper conductor. Wire area, current and carrier density change the value; the electrical signal propagates far faster.
Defined examples — our methodology
The marked representative charge-carrier drift speed is calibrated. Unmeasured illustration details are representative.
Use the visual comparison to explore its scale, then check the measurements and sources.
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Why this measurement?
Why we use 5 × 10⁻⁵ m/s
We compare the progressive speed of a swimming sperm cell. This is a representative comparison value; individual specimens or conditions can vary. The recorded range is 2 × 10⁻⁵ m/s to 0.0002 m/s.
A representative 50 micrometres per second progressive swimming speed for a human sperm cell under laboratory observation. Individual cells, sample preparation, medium and measurement method produce a broad distribution.
The picture identifies the subject; the diagram compares the recorded values. How calibrated comparisons work →
Recorded properties
Dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 5 × 10⁻⁵ m/s | 2 × 10⁻⁵ m/s to 0.0002 m/s | representative |
Around this scale
Explore nearby values.
Compare examples with lower, similar and higher values. Each card names the measurement being compared.
Nearest lower valueMotion and speedSlime mould migration1 × 10⁻⁵ m/sMigration speedSlime mould migration is the rate at which a motile stage of slime mould advances across a surface in search of food.
Nearest higher valueMotion and speedElectron drift in household copper wiring0.0001 m/sRepresentative charge-carrier drift speedThis refers to the slow average movement of electrons through copper wire when an electric current flows.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
- NCBI — Human sperm motility assessmentProgressive sperm motion is measured in micrometres per second and varies across cells, samples and methods.
There’s always another scale
Follow your curiosity.
MotionRed blood cell in a capillary0.001 m/sA red blood cell in a capillary refers to an erythrocyte moving through the body's smallest blood vessels as part of microcirculation.
MotionSnail crawling0.001 m/sSnail crawling is the slow movement of a snail as it glides along a surface using its muscular foot.MotionElectron drift in household copper wiring0.0001 m/sThis refers to the slow average movement of electrons through copper wire when an electric current flows.MotionSlime mould migration1 × 10⁻⁵ m/sSlime mould migration is the rate at which a motile stage of slime mould advances across a surface in search of food.MotionSea star tube-foot travel0.0003 m/sSea star tube-foot travel is the movement speed of a sea star as it uses its tube feet to glide over surfaces.MotionGarden snail relaxed crawl0.0008 m/sA garden snail relaxed crawl describes the slow, steady movement of a garden snail as it glides along a surface.MotionBanana slug crawl0.0015 m/sBanana slug crawl refers to the speed at which a banana slug moves across a surface using muscular contractions and mucus secretion.MotionEarthworm surface crawl0.005 m/sEarthworm surface crawl is the rate at which an earthworm moves along the ground by extending and contracting its body segments.