How fast is sound in helium?
3,474 km/hAbout 2,160 mph · Jet
About 965 m a second, which is why helium makes your voice squeaky.
That's about 62 times a red kangaroo's top speed (56 km/h).
🎈3,474 km/h
🌀Hurricane Patricia
By speed: sound in helium is about 10× faster than Hurricane Patricia.
Things about as fast
- How fast are Neptune's winds?2,100 km/h
- How fast did Concorde fly?2,180 km/h
- How fast was the SR-71 Blackbird?3,529.6 km/h
- How fast is 1 kilometre per second?3,600 km/h
- How fast does the Moon orbit Earth?3,683 km/h
- What is Pluto's escape velocity?4,356 km/h
- How fast is sound in water?5,328 km/h
- How fast does a spacecraft orbit the Moon?5,760 km/h
Many real things vary, so we use a typical or official figure. Spotted a mistake? Email [email protected].