Anyone else notice odometer discrepancy with wheel size change?

[Daybyday]

Hello,

Quick high level. M3P with 20” Ubers…. Was showing 51 miles for a trip I take twice a month. I put on a set of 18” wheels with 235/45/18 tires. Now it’s saying my trip is 61 miles. My other car says 62 miles. Google maps says 62 miles. Any idea why the car would be off by 10 miles with 20”? Yes,

 

[mongo]

Hello,

Quick high level. M3P with 20” Ubers…. Was showing 51 miles for a trip I take twice a month. I put on a set of 18” wheels with 235/45/18 tires. Now it’s saying my trip is 61 miles. My other car says 62 miles. Google maps says 62 miles. Any idea why the car would be off by 10 miles with 20”? Yes,

Were you running nonstandard rubber on the 20s?
Was the speed off 20% also?

235/35R20 has a circumference of 83.1 inches
235/45R18 has a circumference of 82.7 inches

 

[Lindenwood]

Much more likely a measurement or estimation error than a 20% error in recorded mileage.

Just to be clear, are you talking actual odometer, or the “miles” estimate for the battery?

 

[Daybyday]

Everything is stock. I figured out the issue. Wait for it, user error, thanks for the help.