40x15.50R20 tire size
A 40x15.50R20 tire is 40.00 in (1016.0 mm) tall and 15.50 in (393.7 mm) wide, and turns 504 revolutions per mile.
- 40.00 inOverall diameter
- 10.00 inSidewall height
- 504Revolutions per mile
- 394/65R20Metric equivalent
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter | 40.00 in | 1,016.0 mm |
| Section width | 15.50 in | 393.7 mm |
| Sidewall height | 10.00 in | 254.0 mm |
| Rim diameter | 20.00 in | 508.0 mm |
| Circumference | 125.66 in | 3,192 mm |
| Revolutions per mile | 504 | |
| Metric equivalent | 394/65R20 (rounded) | |
40x15.50R20 is a flotation size: 40.0 inches tall and 15.50 inches wide on a 20-inch wheel, which works out to roughly 394/65R20 in metric terms.
Its overall diameter is 40.00 inches, so it rolls 125.7 inches per revolution and turns about 504 times per mile.
1 other size in this list is within 3% of that diameter.
Compare 40x15.50R20 with plausible swaps
No generated comparison meets the swap rules for this size. Use the tire size calculator to compare it with any size.
Sizes within 3% of 40.00 in diameter
- 40x13.50R17 40.00 in (0.00%)
Open 40x15.50R20 in the tire size calculator
Source: Calculated from standard tire geometry formulas. Verified . How these numbers are calculated.