It It would be really helpful if Waze allowed us to adjust the speed offset in both directions — not only to add km/h, but also to subtract.

In my case, my car’s speedometer consistently shows 5 km/h faster than the real speed shown in Waze/GPS. I tested this many times and it’s always the same difference.

Because of this, I’d like to set the speed alert to something like:

✅ “Warn me when I’m less than 5 km/h below the speed limit”
(or essentially: allow a -5 km/h offset)

Right now, Waze only allows adding extra km/h above the limit, but not correcting when the car’s speedometer is inaccurate.

This would make speed alerts more accurate and useful for many drivers