A 295/25R22 tire is 27.8″ tall and 11.6″ wide, and fits a 22″ wheel. In inches it is written 27.8×11.6R22.
Heights published by Michelin for the one tire in this size. Their published revolutions per mile work out to 27.0″ under load (below).
The one tire listed, the Michelin Pilot Sport 4 S, measures 27.80″: 0.01″ shorter than the size code's 27.81″.
Published revs per mile (747) mean the tire rolls like a 27.0″ tire on the vehicle. Use this for speedometer calibration.
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Yes. The size code works out to 27.81″, and the 1 tire here publishes 27.80″, so people call it a 28.
All 28-inch tire sizes, on every wheel size.
Differences in overall diameter, calculated from each size code.
A percentage, not a measurement: the sidewall is 25% as tall as the tire is wide, which is 73.8 mm or 2.90 inches.
Radial construction.
Mounts on a 22-inch wheel. Approved wheel widths run 10.0″ to 11.0″.
Each tire carries up to 1,609 lb (730 kg) at its maximum pressure.
Rated for up to 186 mph sustained.
Printed after the size.
| Specification | Inches | Metric |
|---|---|---|
| Overall diameter | 27.81 | 706 mm |
| Section width | 11.61 | 295 mm |
| Sidewall height | 2.90 | 73.8 mm |
| Circumference | 87.4 | 2,219 mm |
| Revolutions per mile (calculated, unloaded) | 725.3 | 451 per km |
| Revolutions per mile (published by manufacturers) | 747 | 464 per km |
| Approved wheel width | 10.0–11.0 | 254–279 mm |
27.81 inches tall, 11.61 inches wide, on a 22-inch wheel. Written in inches, that is roughly 27.8×11.6R22.
Manufacturers approve 10.0–11.0″ wide wheels for this size.
Published figures run 747 revolutions per mile. The calculated figure is 725.3, but manufacturers measure the tire under load, where it rolls on a smaller radius.
0.20 inches taller on paper (27.81″ vs 27.61″), which raises the axle about 0.10″. Your speedometer will read about 0.7% slow.