Strange unit named Mm

got a chart which should display km (kilometers) … which is a quite common unit for a distance or length.
But if distance raises it becomes something named Mm
Never heard of that unit since km never turns into K or M or T and if it does it must be Tkm Mkm and such like.
any idea if there’s an easy way to get this bypassed?

Interesting question, while not commonly used Mm is the correct SI synbol for megametre or 1000 km.

It may make sense for Grafana to skip Mm (and possibly also Gm) as distances in that range are commonly expressed in km.

Yep, since at first look I was pretty unsure if Mm was MegaMeters or MegaMiles, and granted when travelling by plane I’m surely not used to both of them