No idea what is the story behind it, or if there is a practical reason.
Comment on Does different parts of the world use different standards for water pressure similar to voltages?
AmidFuror@fedia.io 2 days agoA bar is 100,000 Pa or 100.000 Pa. Why not use KPa? Why set a separate unit to be 1E+05?
Macaroni_ninja@lemmy.world 1 day ago
Contravariant@lemmy.world 1 day ago
Because 1 bar is almost atmospheric pressure. Oddly enough I’ve never seen anyone use kPa, weather forecasts often use hPa (instead of mbar) to report atmospheric pressure.