tireheight.com375/45R22 in inches
A 375/45R22 tire is 35.3″ tall and 14.8″ wide, and fits a 22″ wheel. In inches it is written 35.3×14.8R22.
How tall 375/45R22 tires really are
Heights published by Toyo for all 2 tires in this size. Their published revolutions per mile work out to 34.3–34.5″ under load (below).
Real 375/45R22 tires measure 35.30–35.55″, against 35.29″ from the size code. They run both taller and shorter than the size code.
- Toyo Open Country M/T35.55″ +0.26″
- Toyo Open Country R/T Pro35.30″ +0.01″
Published revs per mile (584–588) mean the tire rolls like a 34.3–34.5″ tire on the vehicle. Use this for speedometer calibration.
The lightest (Toyo Open Country R/T Pro, LT F) is 12.7 lb lighter per corner than the heaviest (Toyo Open Country M/T, LT F).
2 tires in 375/45R22
Sort by the spec you care about.
Is 375/45R22 a 35-inch tire?
Close. The size code works out to 35.29″, and the 2 tires here publish 35.30–35.55″, so people call it a 35.
All 35-inch tire sizes, on every wheel size.
A true 35×12.50R22 is 0.29″ shorter on paper and 2.3″ narrower.
Compare with nearby sizes
Differences in overall diameter, calculated from each size code.
| Size | Diameter ″ | vs 375/45R22 | Difference |
|---|---|---|---|
| 295/50R22 | 33.61 | -1.67″ | -4.7% |
| 305/50R22 | 34.01 | -1.28″ | -3.6% |
| 285/55R22 | 34.34 | -0.94″ | -2.7% |
| 265/60R22 | 34.52 | -0.77″ | -2.2% |
| 295/55R22 | 34.78 | -0.51″ | -1.5% |
| 325/50R22 | 34.80 | -0.49″ | -1.4% |
| 275/60R22 | 34.99 | -0.30″ | -0.8% |
| 35×12.50R22 | 35.00 | -0.29″ | -0.8% |
| 35×15.50R22 | 35.00 | -0.29″ | -0.8% |
| 305/55R22 | 35.21 | -0.08″ | -0.2% |
How to read 375/45R22
Marks a light truck (LT) tire.
375 mm across the widest point, or 14.76 inches.
A percentage, not a measurement: the sidewall is 45% as tall as the tire is wide, which is 168.8 mm or 6.64 inches.
Radial construction.
Mounts on a 22-inch wheel. Approved wheel widths run 12.0″ to 14.0″.
Each tire carries up to 3,970 lb (1,800 kg) at its maximum pressure.
Rated for up to 99 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 3,970 lb each, as published.
| Specification | Inches | Metric |
|---|---|---|
| Overall diameter | 35.29 | 896 mm |
| Section width | 14.76 | 375 mm |
| Sidewall height | 6.64 | 168.8 mm |
| Circumference | 110.9 | 2,816 mm |
| Revolutions per mile (calculated, unloaded) | 571.5 | 355 per km |
| Revolutions per mile (published by manufacturers) | 584–588 | 363–365 per km |
| Approved wheel width | 12.0–14.0 | 305–356 mm |
Speedometer error after switching to 375/45R22
Questions about 375/45R22
What is 375/45R22 in inches?
35.29 inches tall, 14.76 inches wide, on a 22-inch wheel. Written in inches, that is roughly 35.3×14.8R22.
How much does a 375/45R22 tire weigh?
Between 81.1 lb and 93.8 lb for the 2 tires listed here. The lightest is the Toyo Open Country R/T Pro (LT F); the heaviest is the Toyo Open Country M/T (LT F).
What wheel width do I need for 375/45R22?
Manufacturers approve 12.0–14.0″ wide wheels for this size.
How many revolutions per mile does a 375/45R22 make?
Published figures run 584–588 revolutions per mile. The calculated figure is 571.5, but manufacturers measure the tire under load, where it rolls on a smaller radius.
How much taller is 375/45R22 than 305/55R22?
0.08 inches taller on paper (35.29″ vs 35.21″), which raises the axle about 0.04″. Your speedometer will read about 0.2% slow.