Every car I’ve owned has had a way to change the speedometer from freedom units to ✨ metric ✨ .

For knowing what speed I should be going, I roughly follow these numbers. (Note, these are not equivalent.)

• 35mph -> 50km/h
• 60mph -> 100km/h
• 70mph ->110km/h

Also, very roughly 10km ≈ 5mi.

However, most of the time I just follow the flow of traffic.

I voluntarily switched to metric like 10 years ago, so meters, celsius, grams, etc make more sense to me now.