Fiat Tire Sizes and Rim Dimensions | OEM Tire Size Guide

This Fiat tire size reference catalog provides detailed OEM-style metric tire codes and rim measurements sorted by model and production year.\n\nBrowse Fiat models with easy-to-navigate links that lead to year-ordered tire sizes and compatible rim widths and diameters. This ensures you select tires and wheels that meet factory specifications.\n\nUsing these tables helps maintain vehicle safety, performance, and compliance with manufacturer recommendations. Whether you're replacing tires or upgrading wheels, rely on accurate Fiat size references.\n\nKeep in mind that correct tire and rim matching affects handling, fuel efficiency, and overall ride comfort, making this resource essential for Fiat owners and automotive professionals.

54 models

Tire size calculatorShow

Compare two tire sizes — diameter, speedometer error, and clearance change.

WidthHeightRadius

inch

	Size 1	Size 2	Diff	Diff(%)
Diameter	25.0"	25.4"	0.5"	1.89%
Width	7.7"	8.5"	0.8"	10.26%
Circumference	78.4"	79.9"	1.5"	1.86%
Profile height	5.0"	4.2"	-0.7"	-15.08%
Turnover per mile	807	793	14	-1.73%
Clearance	-	-	+0.2"	-

25.0"

7.7"

25.5"

8.5"

15"

5.0"

17"

4.2"

Speedometer Error

(First wheel OEM size)

Reading	20 mph	30 mph	40 mph	50 mph	60 mph	70 mph	80 mph	90 mph
Actual	20.4	30.5	40.7	50.9	61.1	71.2	81.4	91.6