37x12.50R20 tire size
A 37x12.50R20 tire is 37.0 inches (940 mm) tall and 12.5 inches (318 mm) wide, and fits a 20-inch wheel. The closest metric size is 315/70R20, 37.4 in tall.
Overall diameter37.00in940 mm
| Inches | Millimetres | |
|---|---|---|
| Section width | 12.50 in | 318 mm |
| Sidewall height | 8.50 in | 216 mm |
| Wheel diameter | 20 in | 508 mm |
| Circumference | 116.2 in | 2952 mm |
| Revs per mile / km | 545 | 339 |
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Compare 37x12.50R20 with
Sizes within 3% of 37x12.50R20
| Size | Diameter | Difference | Width | Sidewall | Wheel |
|---|---|---|---|---|---|
| 37x12.50R17 | 37.0″ | 0.0% | 12.5″ | 10.0″ | 17″ |
| 37x13.50R22 | 37.0″ | 0.0% | 13.5″ | 7.5″ | 22″ |
Within 3% of the original diameter is the range most tire shops treat as a direct swap. Check load index and clearance too.
What 37x12.50R20 means
- 37
- Overall height: 37.0 in (940 mm).
- 12.50
- Section width: 12.50 in (318 mm).
- R
- Radial construction.
- 20
- Fits a 20-inch wheel. Inch sizes like this are light-truck (LT) tires.
37x12.50R20 questions
What is 37x12.50R20 in inches?
37x12.50R20 is about 37.0 inches tall and 12.5 inches wide, on a 20-inch wheel.
Is 37x12.50R20 a 37 inch tire?
Yes. At 37.0 inches it is sold and fitted as a 37-inch tire.
What size can replace 37x12.50R20?
37x12.50R17, 37x13.50R22 are the closest common sizes, all within 0.0% of its diameter, so the speedometer stays close to accurate.
How many revolutions per mile does 37x12.50R20 make?
About 545 per mile (339 per km), from a 116.2-inch circumference.