tireheight.com205/45R17 in inches
A 205/45R17 tire is 24.3″ tall and 8.1″ wide, and fits a 17″ wheel. In inches it is written 24.3×8.1R17.
How tall 205/45R17 tires really are
Heights published by BFGoodrich, General, Michelin and Toyo for all 11 tires in this size. Their published revolutions per mile work out to 23.5–23.6″ under load (below).
Real 205/45R17 tires measure 24.25–24.30″, against 24.26″ from the size code. They run both taller and shorter than the size code.
Published revs per mile (856–858) mean the tire rolls like a 23.5–23.6″ tire on the vehicle. Use this for speedometer calibration.
The lightest (General AltiMAX RT45, XL) is 4.6 lb lighter per corner than the heaviest (BFGoodrich g-Force COMP-2 A/S PLUS, XL).
11 tires in 205/45R17
Sort by the spec you care about.
| Load | Revs/mi | Source | |||||
|---|---|---|---|---|---|---|---|
| General AltiMAX RT45Touring | XL · 88V | 24.30 | 17.9 | 11.0 | 1,235 | 856 | Spec page |
| Michelin Primacy 3Performance | XL · 88W | 24.25 | 18.3 | 9.0 | 1,235 | 858 | Spec page |
| Michelin Pilot Sport 5Performance | XL · 88(Y) | 24.30 | 19.1 | 9.0 | 1,235 | 858 | Spec page |
| General G-MAX AS07Performance | XL · 88W | 24.30 | 19.7 | 10.0 | 1,235 | 856 | Spec page |
| Toyo Extensa HP IIPerformance | XL · 88W | 24.25 | 20.2 | 9.1 | 1,235 | 857 | Spec page |
| Toyo CelsiusAll-weather | XL · 88V | 24.25 | 20.5 | 10.1 | 1,235 | 857 | Spec page |
| Toyo Proxes Sport A/SPerformance | XL · 88W | 24.25 | 20.6 | 9.4 | 1,235 | 857 | Spec page |
| BFGoodrich g-Force Phenom T/APerformance | XL · 88W | 24.25 | 21.1 | 9.0 | 1,235 | 858 | Spec page |
| Michelin Pilot Sport All-Season 4Performance | XL · 88Y | 24.30 | 21.4 | 10.0 | 1,235 | 858 | Spec page |
| Toyo Proxes R888RPerformance | XL · 88W | 24.25 | 21.6 | 6.3 | 1,235 | 857 | Spec page |
| BFGoodrich g-Force COMP-2 A/S PLUSPerformance | XL · 88W | 24.25 | 22.5 | 9.0 | 1,235 | 858 | Spec page |
Is 205/45R17 a 24-inch tire?
Yes. The size code works out to 24.26″, and the 11 tires here publish 24.25–24.30″, so people call it a 24.
Compare with nearby sizes
Differences in overall diameter, calculated from each size code.
How to read 205/45R17
A percentage, not a measurement: the sidewall is 45% as tall as the tire is wide, which is 92.3 mm or 3.63 inches.
Radial construction.
Mounts on a 17-inch wheel. Approved wheel widths run 6.5″ to 7.5″.
Each tire carries up to 1,235 lb (560 kg) at its maximum pressure.
Rated for up to 168 mph sustained.
Printed after the size.
| Specification | Inches | Metric |
|---|---|---|
| Overall diameter | 24.26 | 616 mm |
| Section width | 8.07 | 205 mm |
| Sidewall height | 3.63 | 92.3 mm |
| Circumference | 76.2 | 1,936 mm |
| Revolutions per mile (calculated, unloaded) | 831.2 | 516 per km |
| Revolutions per mile (published by manufacturers) | 856–858 | 532–533 per km |
| Approved wheel width | 6.5–7.5 | 165–191 mm |
Speedometer error after switching to 205/45R17
Questions about 205/45R17
What is 205/45R17 in inches?
24.26 inches tall, 8.07 inches wide, on a 17-inch wheel. Written in inches, that is roughly 24.3×8.1R17.
How much does a 205/45R17 tire weigh?
Between 17.9 lb and 22.5 lb for the 11 tires listed here. The lightest is the General AltiMAX RT45 (XL); the heaviest is the BFGoodrich g-Force COMP-2 A/S PLUS (XL).
What wheel width do I need for 205/45R17?
Manufacturers approve 6.5–7.5″ wide wheels for this size.
How many revolutions per mile does a 205/45R17 make?
Published figures run 856–858 revolutions per mile. The calculated figure is 831.2, but manufacturers measure the tire under load, where it rolls on a smaller radius.
How much taller is 205/45R17 than 195/45R17?
0.35 inches taller on paper (24.26″ vs 23.91″), which raises the axle about 0.18″. Your speedometer will read about 1.5% slow.