How precise is the odometer reading coming from the legacy locations endpoint?

Does the odometer reading returned from the legacy locations endpoint include fractional mileage? For example, it returns meters, and when I convert to miles using division by 1609.344 and then use basic rounding (from midpoint), sometimes I don't get the result I expect (i.e. the mileage reading can round down when I expect it to round up).

I even cross compared with the new vehicle stats history endpoint and the last three digits always seem to be zero, which would tell me I lose precision.