Whats a reasonable distance from a city in mm

AAAaannndd the bot gets it wrong yet again!

1000 mm = 1 meter
1000m = 1 km

so 1,000,000 mm would be 1 km

A reasonable distance from a city in mm would depend on the size of the city and the purpose of the distance. Generally speaking, a distance of 1,000 mm (1 km) or more would be considered a reasonable distance from a city.