215/40R17 Tire Size Specifications & Compatible Vehicles
Overall Diameter
603.8 mm
Section Width
215 mm
Sidewall Height
86.0 mm
Circumference
1896.9 mm
Revs/Mile
848
Rim Diameter
17"
Inch Equivalent
23.8x8.5R17
Rim Width (ETRTO)
6.0" – 8.0"
Alternative Tire Sizes
These tire sizes are within 3% overall diameter of 215/40R17 and may be used as replacements:
Understanding 215/40R17
The tire size 215/40R17 means the tire has a section width of 215mm, an aspect ratio of 40% (the sidewall height is 40% of the width), and fits a 17-inch rim.
Sidewall Height = 215 x 0.4 = 86.0 mm
Overall Diameter = (86.0 x 2) + (17 x 25.4) = 603.8 mm
Circumference = 603.8 x π = 1896.9 mm
Overall Diameter = (86.0 x 2) + (17 x 25.4) = 603.8 mm
Circumference = 603.8 x π = 1896.9 mm
Frequently Asked Questions
The 215/40R17 is a standard tire size. Check your vehicle door jamb sticker or owner manual to confirm compatibility.
A 215/40R17 tire has an overall diameter of 603.8mm (23.8 inches). The sidewall height is 86.0mm, and the total circumference is 1897mm.
For 215/40R17 tires, the ETRTO recommended rim width is 7.0". The acceptable range is 6.0" minimum to 8.0" maximum. Using a rim outside this range can cause improper bead seating and unsafe handling.
Yes, as long as the replacement tire overall diameter is within 3% of the 215/40R17 603.8mm diameter. Compatible alternatives include 245/30R18, 245/35R17, 345/25R17. Use our Tire Size Calculator to compare any two sizes.