tireheight.com305/55R22 in inches
A 305/55R22 tire is 35.2″ tall and 12.0″ wide, and fits a 22″ wheel. In inches it is written 35.2×12.0R22.
How tall 305/55R22 tires really are
Heights published by BFGoodrich and Toyo for all 2 tires in this size. Their published revolutions per mile work out to 34.2″ under load (below).
Real 305/55R22 tires measure 35.20″, against 35.21″ from the size code. They run both taller and shorter than the size code.
Published revs per mile (590) mean the tire rolls like a 34.2″ tire on the vehicle. Use this for speedometer calibration.
The lightest (Toyo Open Country A/T III EV, LT E) is 4.5 lb lighter per corner than the heaviest (BFGoodrich All-Terrain T/A KO3, LT F).
2 tires in 305/55R22
Sort by the spec you care about.
Is 305/55R22 a 35-inch tire?
Yes. The size code works out to 35.21″, and the 2 tires here publish 35.20″, so people call it a 35.
All 35-inch tire sizes, on every wheel size.
A true 35×12.50R22 is 0.21″ shorter on paper and 0.5″ wider.
Compare with nearby sizes
Differences in overall diameter, calculated from each size code.
| Size | Diameter ″ | vs 305/55R22 | Difference |
|---|---|---|---|
| 295/50R22 | 33.61 | -1.59″ | -4.5% |
| 305/50R22 | 34.01 | -1.20″ | -3.4% |
| 285/55R22 | 34.34 | -0.87″ | -2.5% |
| 265/60R22 | 34.52 | -0.69″ | -2.0% |
| 295/55R22 | 34.78 | -0.43″ | -1.2% |
| 325/50R22 | 34.80 | -0.41″ | -1.2% |
| 275/60R22 | 34.99 | -0.22″ | -0.6% |
| 35×12.50R22 | 35.00 | -0.21″ | -0.6% |
| 35×15.50R22 | 35.00 | -0.21″ | -0.6% |
| 375/45R22 | 35.29 | +0.08″ | +0.2% |
How to read 305/55R22
Marks a light truck (LT) tire.
A percentage, not a measurement: the sidewall is 55% as tall as the tire is wide, which is 167.8 mm or 6.60 inches.
Radial construction.
Mounts on a 22-inch wheel. Approved wheel widths run 9.0″ to 11.0″.
Each tire carries up to 3,860 lb (1,750 kg) at its maximum pressure.
Rated for up to 112 mph sustained.
Printed separately as "LOAD RANGE F": a 12-ply rating, inflated up to 95 psi (standard load-range table). The load range F tires here carry up to 3,860 lb each, as published.
| Specification | Inches | Metric |
|---|---|---|
| Overall diameter | 35.21 | 894 mm |
| Section width | 12.01 | 305 mm |
| Sidewall height | 6.60 | 167.8 mm |
| Circumference | 110.6 | 2,810 mm |
| Revolutions per mile (calculated, unloaded) | 572.8 | 356 per km |
| Revolutions per mile (published by manufacturers) | 590 | 367 per km |
| Approved wheel width | 9.0–11.0 | 229–279 mm |
Speedometer error after switching to 305/55R22
Questions about 305/55R22
What is 305/55R22 in inches?
35.21 inches tall, 12.01 inches wide, on a 22-inch wheel. Written in inches, that is roughly 35.2×12.0R22.
How much does a 305/55R22 tire weigh?
Between 67.5 lb and 72.0 lb for the 2 tires listed here. The lightest is the Toyo Open Country A/T III EV (LT E); the heaviest is the BFGoodrich All-Terrain T/A KO3 (LT F).
What wheel width do I need for 305/55R22?
Manufacturers approve 9.0–11.0″ wide wheels for this size.
How many revolutions per mile does a 305/55R22 make?
Published figures run 590 revolutions per mile. The calculated figure is 572.8, but manufacturers measure the tire under load, where it rolls on a smaller radius.
How much taller is 305/55R22 than 35×15.50R22?
0.21 inches taller on paper (35.21″ vs 35.00″), which raises the axle about 0.10″. Your speedometer will read about 0.6% slow.