tireheight.com315/50R24 in inches
A 315/50R24 tire is 36.4″ tall and 12.4″ wide, and fits a 24″ wheel. In inches it is written 36.4×12.4R24.
How tall 315/50R24 tires really are
Heights published by Toyo for the one tire in this size. Their published revolutions per mile work out to 35.4″ under load (below).
The one tire listed, the Toyo Open Country R/T Pro, measures 36.50″: 0.10″ taller than the size code's 36.40″.
Published revs per mile (570) mean the tire rolls like a 35.4″ tire on the vehicle. Use this for speedometer calibration.
1 tire in 315/50R24
Sort by the spec you care about.
Is 315/50R24 a 37-inch tire?
Close. The size code works out to 36.40″, and the 1 tire here publishes 36.50″, so people call it a 37.
All 37-inch tire sizes, on every wheel size.
A true 37×13.50R24 is 0.60″ taller on paper and 1.1″ wider.
Compare with nearby sizes
Differences in overall diameter, calculated from each size code.
| Size | Diameter ″ | vs 315/50R24 | Difference |
|---|---|---|---|
| 275/50R24 | 34.83 | -1.57″ | -4.3% |
| 35×15.50R24 | 35.00 | -1.40″ | -3.9% |
| 375/40R24 | 35.81 | -0.59″ | -1.6% |
| 37×13.50R24 | 37.00 | +0.60″ | +1.6% |
| 37×14.50R24 | 37.00 | +0.60″ | +1.6% |
| 38×13.50R24 | 38.00 | +1.60″ | +4.4% |
| 38×15.50R24 | 38.00 | +1.60″ | +4.4% |
How to read 315/50R24
Marks a light truck (LT) tire.
A percentage, not a measurement: the sidewall is 50% as tall as the tire is wide, which is 157.5 mm or 6.20 inches.
Radial construction.
Mounts on a 24-inch wheel. Approved wheel widths run 9.5″ to 11.0″.
Each tire carries up to 3,860 lb (1,750 kg) on its own, or 3,525 lb (1,600 kg) each when paired on a dual rear axle.
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 3,860 lb each, as published.
| Specification | Inches | Metric |
|---|---|---|
| Overall diameter | 36.40 | 925 mm |
| Section width | 12.40 | 315 mm |
| Sidewall height | 6.20 | 157.5 mm |
| Circumference | 114.4 | 2,905 mm |
| Revolutions per mile (calculated, unloaded) | 554.0 | 344 per km |
| Revolutions per mile (published by manufacturers) | 570 | 354 per km |
| Approved wheel width | 9.5–11.0 | 241–279 mm |
Speedometer error after switching to 315/50R24
Questions about 315/50R24
What is 315/50R24 in inches?
36.40 inches tall, 12.40 inches wide, on a 24-inch wheel. Written in inches, that is roughly 36.4×12.4R24.
What wheel width do I need for 315/50R24?
Manufacturers approve 9.5–11.0″ wide wheels for this size.
How many revolutions per mile does a 315/50R24 make?
Published figures run 570 revolutions per mile. The calculated figure is 554.0, but manufacturers measure the tire under load, where it rolls on a smaller radius.
How much taller is 315/50R24 than 375/40R24?
0.59 inches taller on paper (36.40″ vs 35.81″), which raises the axle about 0.30″. Your speedometer will read about 1.6% slow.