Sound in air
Sound in air is the propagation of pressure waves through the atmosphere, which can be heard by humans and animals.
1,235 km/hSpeedEveryday quantities
Sound in air vs International Space Station
What are they, and what does the difference actually look like?
Two things. One honest scale.
Meet the pair
What these two things are
International Space Station
The International Space Station is a large habitable satellite that orbits Earth and serves as a research laboratory.
28,160 km/hSpeedInternational Space Station moves about 22.8 times as fast as Sound in air.
01
Sound in air1,235 km/hSpeed
02
International Space Station28,160 km/hSpeed
Each track shows distance covered in the same second. The small illustrations identify the movers; their sizes are schematic.
Measurements, assumptions & sources +
Sound in air
Approximately 343 m/s in dry air at 20 °C. Mach numbers use this stated local sound speed.
The marked speed is calibrated. Unmeasured illustration details are representative.
International Space Station
NASA’s rounded 17,500 mph orbital-speed figure. This is motion around Earth, not speed relative to an astronaut inside.
NASA — International Space Station
The marked speed is calibrated. Unmeasured illustration details are representative.
Change the comparison
Put something else beside it.
Measurement details
Why these numbers?
The visual compares speed with speed. The records below preserve each value’s basis and caveats.
Sound in air
1,235 km/hSpeed · approximate
Approximately 343 m/s in dry air at 20 °C. Mach numbers use this stated local sound speed.
International Space Station
28,160 km/hSpeed · approximate
NASA’s rounded 17,500 mph orbital-speed figure. This is motion around Earth, not speed relative to an astronaut inside.
- Comparing
- Speed ↔ Speed
- Relative size
- International Space Station is larger on this measurement by a factor of about 22.8.
How to read the visual
The labelled spans and stored measurements determine the scale; unmeasured illustration details do not.
- Sound in air is labelled approximate; treat the displayed value as a comparison anchor rather than false precision.
- International Space Station is labelled approximate; treat the displayed value as a comparison anchor rather than false precision.
There’s always another scale
Follow your curiosity.
MotionSound in air1,235 km/hSound in air is the propagation of pressure waves through the atmosphere, which can be heard by humans and animals.MotionInternational Space Station28,160 km/hThe International Space Station is a large habitable satellite that orbits Earth and serves as a research laboratory.
MotionWalking1.389 m/sWalking is a form of human locomotion where one foot is always in contact with the ground.MotionLight in vacuum1 cLight in vacuum is electromagnetic radiation that travels through empty space without any material medium.Side by side
Another point of view.
