A 275/40R22 tire is 30.7″ tall and 10.8″ wide, and fits a 22″ wheel. In inches it is written 30.7×10.8R22.
Heights published by Michelin and Toyo for all 15 tires in this size. Their published revolutions per mile work out to 29.7–29.8″ under load (below).
Real 275/40R22 tires measure 30.67–30.70″, against 30.66″ from the size code. They run both taller and shorter than the size code.
Published revs per mile (677–678) mean the tire rolls like a 29.7–29.8″ tire on the vehicle. Use this for speedometer calibration.
The lightest (Michelin Pilot Sport All-Season 4, XL) is 7.7 lb lighter per corner than the heaviest (Michelin Pilot Sport 4 SUV, XL).
Sort by the spec you care about.
| Load | Revs/mi | Source | |||||
|---|---|---|---|---|---|---|---|
| Michelin Pilot Sport All-Season 4Performance | XL · 108Y | 30.70 | 31.8 | 10.0 | 2,205 | 678 | Spec page |
| Michelin Pilot Sport 4 SPerformance | XL · 108(Y) | 30.70 | 32.9 | 9.5 | 2,205 | 678 | Spec page |
| Michelin Pilot Sport 5Performance | XL · 107Y | 30.70 | 33.5 | 7.5 | 2,149 | 678 | Spec page |
| Toyo Proxes Sport 2Performance | XL · 107Y | 30.70 | 33.5 | 9.2 | 2,149 | 677 | Spec page |
| Michelin CrossClimate2All-season | XL · 108V | 30.70 | 34.4 | 10.0 | 2,205 | 678 | Spec page |
| Michelin Pilot Sport EVPerformance | XL · 107Y | 30.70 | 34.5 | 8.5 | 2,149 | 678 | Spec page |
| Michelin Pilot Sport 4 SUVPerformance | XL · 108Y | 30.70 | 34.8 | 9.5 | 2,205 | 678 | Spec page |
| Michelin Primacy All SeasonTouring | XL · 107H | 30.70 | 35.6 | 10.0 | 2,149 | 678 | Spec page |
| Toyo Celsius SportPerformance | XL · 108Y | 30.67 | 35.6 | 9.7 | 2,205 | 677 | Spec page |
| Michelin X-Ice Snow+Winter | XL · 108H | 30.67 | 36.8 | 10.5 | 2,205 | 678 | Spec page |
| Toyo Proxes ST IIIPerformance | XL · 108W | 30.67 | 37.0 | 10.1 | 2,205 | 677 | Spec page |
| Michelin Primacy All SeasonTouring | XL · 107H | 30.70 | 37.7 | 10.0 | 2,149 | 678 | Spec page |
| Michelin X-Ice SnowWinter | XL · 108H | 30.67 | 38.3 | 10.5 | 2,205 | 678 | Spec page |
| Toyo Observe G3-IceWinter | XL · 107T | 30.67 | 39.0 | 12.0 | 2,149 | 677 | Spec page |
| Michelin Pilot Sport 4 SUVPerformance | XL · 107Y | 30.70 | 39.5 | 9.5 | 2,149 | 678 | Spec page |
Yes. The size code works out to 30.66″, and the 15 tires here publish 30.67–30.70″, so people call it a 31.
All 31-inch tire sizes, on every wheel size.
Differences in overall diameter, calculated from each size code.
A percentage, not a measurement: the sidewall is 40% as tall as the tire is wide, which is 110.0 mm or 4.33 inches.
Radial construction.
Mounts on a 22-inch wheel. Approved wheel widths run 9.0″ to 11.0″.
Each tire carries up to 2,149 lb (975 kg) at its maximum pressure.
Rated for up to 186 mph sustained.
Printed after the size.
| Specification | Inches | Metric |
|---|---|---|
| Overall diameter | 30.66 | 779 mm |
| Section width | 10.83 | 275 mm |
| Sidewall height | 4.33 | 110.0 mm |
| Circumference | 96.3 | 2,447 mm |
| Revolutions per mile (calculated, unloaded) | 657.8 | 409 per km |
| Revolutions per mile (published by manufacturers) | 677–678 | 421 per km |
| Approved wheel width | 9.0–11.0 | 229–279 mm |
30.66 inches tall, 10.83 inches wide, on a 22-inch wheel. Written in inches, that is roughly 30.7×10.8R22.
Between 31.8 lb and 39.5 lb for the 15 tires listed here. The lightest is the Michelin Pilot Sport All-Season 4 (XL); the heaviest is the Michelin Pilot Sport 4 SUV (XL).
Manufacturers approve 9.0–11.0″ wide wheels for this size.
Published figures run 677–678 revolutions per mile. The calculated figure is 657.8, but manufacturers measure the tire under load, where it rolls on a smaller radius.
0.26 inches taller on paper (30.66″ vs 30.41″), which raises the axle about 0.13″. Your speedometer will read about 0.8% slow.