215/45R17 in inches

A 215/45R17 tire is 24.6″ tall and 8.5″ wide, and fits a 17″ wheel. In inches it is written 24.6×8.5R17.

Diameter24.62″

Width8.46″

Sidewall3.81″

Drawn to scale. Nominal dimensions calculated from the size code.

Manufacturer data

How tall 215/45R17 tires really are

Heights published by BFGoodrich, General, Michelin and Toyo for all 23 tires in this size. Their published revolutions per mile work out to 23.8–23.9″ under load (below).

Real 215/45R17 tires measure 24.53–24.70″, against 24.62″ from the size code. They run both taller and shorter than the size code.

Height under load23.8–23.9″

Published revs per mile (843–847) mean the tire rolls like a 23.8–23.9″ tire on the vehicle. Use this for speedometer calibration.

Weight spread19.5–30.1 lb

The lightest (General G-MAX RS, XL) is 10.6 lb lighter per corner than the heaviest (Toyo Proxes Sport A/S, XL).

23 tires in 215/45R17

Sort by the spec you care about.

	Load					Revs/mi	Source
General G-MAX RSPerformance	XL · 91W	24.60	19.5	10.0	1,356	844	Spec page
Toyo Proxes Sport 2Performance	XL · 91(Y)	24.60	19.8	8.9	1,356	843	Spec page
Toyo Extensa HP IIPerformance	XL · 91W	24.64	20.3	9.2	1,356	843	Spec page
Toyo Celsius SportPerformance	XL · 91W	24.65	20.4	9.6	1,356	843	Spec page
General AltiMAX365 AWTouring	SL · 87V	24.60	20.6	11.0	1,201	844	Spec page
BFGoodrich Advantage ControlAll-season	SL · 87W	24.65	20.8	10.5	1,201	844	Spec page
General AltiMAX RT45Touring	XL · 91V	24.60	20.8	11.0	1,356	844	Spec page
Toyo Celsius IITouring	XL · 91V	24.65	21.0	11.0	1,356	843	Spec page
BFGoodrich Advantage ControlAll-season	SL · 87V	24.65	21.6	10.5	1,201	844	Spec page
Michelin Primacy MXM4Touring	SL · 87V	24.70	21.6	9.5	1,201	844	Spec page
General G-MAX AS07Performance	XL · 91W	24.60	21.8	10.0	1,356	844	Spec page
Michelin CrossClimate2All-season	XL · 91V	24.60	21.8	10.0	1,356	844	Spec page
Toyo Proxes R1RPerformance	SL · 87W	24.53	21.8	7.9	1,201	847	Spec page
Toyo Observe G3-IceWinter	SL · 87T	24.64	22.3	11.3	1,201	843	Spec page
Michelin X-Ice SnowWinter	XL · 91H	24.65	22.3	10.5	1,356	844	Spec page
Toyo Proxes R888RPerformance	XL · 91W	24.64	22.5	6.3	1,356	843	Spec page
Michelin Pilot Sport All-Season 4Performance	XL · 91Y	24.70	22.5	10.0	1,356	844	Spec page
Toyo Proxes Sport RPerformance	XL · 91W	24.60	22.5	7.2	1,356	843	Spec page
Michelin Defender2All-season	XL · 91H	24.60	22.6	10.5	1,356	844	Spec page
General AltiMAX Arctic XWinter	XL · 91T	24.60	22.7	12.0	1,356	844	Spec page
BFGoodrich g-Force COMP-2 A/S PLUSPerformance	XL · 91W	24.65	23.0	9.0	1,356	844	Spec page
BFGoodrich g-Force Phenom T/APerformance	XL · 91W	24.65	23.2	9.0	1,356	844	Spec page
Toyo Proxes Sport A/SPerformance	XL · 91W	24.64	30.1	9.6	1,356	843	Spec page

Is 215/45R17 a 25-inch tire?

≈25″

Close. The size code works out to 24.62″, and the 23 tires here publish 24.53–24.70″, so people call it a 25.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

Size	Diameter ″	vs 215/45R17	Difference
195/45R17	23.91	-0.71″	-2.9%
205/45R17	24.26	-0.35″	-1.4%
235/40R17	24.40	-0.22″	-0.9%
245/45R16	24.68	+0.06″	+0.3%
245/40R17	24.72	+0.10″	+0.4%
225/45R17	24.97	+0.35″	+1.4%
255/40R17	25.03	+0.41″	+1.7%
205/50R17	25.07	+0.45″	+1.8%
235/45R17	25.33	+0.71″	+2.9%
265/40R17	25.35	+0.73″	+3.0%

How to read 215/45R17

How to read any tire size

How 215/45R17 91W is printed on the sidewall. It's the most common code among the 23 tires here (9 of them); tires in this size come in other load and speed ratings too.

1215Section width

215 mm across the widest point, or 8.46 inches. Every 215 size

245Aspect ratio

A percentage, not a measurement: the sidewall is 45% as tall as the tire is wide, which is 96.8 mm or 3.81 inches.

3RConstruction

Radial construction.

417Wheel diameter

Mounts on a 17-inch wheel. Approved wheel widths run 7.0″ to 8.0″.

591Load index

Each tire carries up to 1,356 lb (615 kg) at its maximum pressure.

6WSpeed rating

Rated for up to 168 mph sustained.

XLExtra load

Printed after the size. In this size the XL tires carry up to 1,356 lb each and the standard-load tires up to 1,201 lb, as published.

Specification	Inches	Metric
Overall diameter	24.62	625 mm
Section width	8.46	215 mm
Sidewall height	3.81	96.8 mm
Circumference	77.3	1,964 mm
Revolutions per mile (calculated, unloaded)	819.2	509 per km
Revolutions per mile (published by manufacturers)	843–847	524–526 per km
Approved wheel width	7.0–8.0	178–203 mm

Speedometer error after switching to 215/45R17

Your actual speed– mph

Questions about 215/45R17

What is 215/45R17 in inches?

24.62 inches tall, 8.46 inches wide, on a 17-inch wheel. Written in inches, that is roughly 24.6×8.5R17.

How much does a 215/45R17 tire weigh?

Between 19.5 lb and 30.1 lb for the 23 tires listed here. The lightest is the General G-MAX RS (XL); the heaviest is the Toyo Proxes Sport A/S (XL).

What wheel width do I need for 215/45R17?

Manufacturers approve 7.0–8.0″ wide wheels for this size.

How many revolutions per mile does a 215/45R17 make?

Published figures run 843–847 revolutions per mile. The calculated figure is 819.2, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 215/45R17 than 235/40R17?

0.22 inches taller on paper (24.62″ vs 24.40″), which raises the axle about 0.11″. Your speedometer will read about 0.9% slow.