Tire size in inches and millimeters

215/70R16 tire size in inches

A 215/70R16 tire is 27.85 inches tall (707.4 mm) and 8.46 inches wide (215 mm), with a 5.93-inch sidewall (150.5 mm). In inch notation that is about 27.9x8.5R16, close to a 28-inch tire (nominal).

Its circumference is 87.49 inches (2,222.4 mm), or about 724 revolutions per mile.

Nominal 215/70R16 dimensions

Overall diameter
27.85 in707.4 mm
Section width
8.46 in215 mm
Sidewall height
5.93 in150.5 mm
Circumference
87.49 in2,222.4 mm
Rim diameter
16 in
Revolutions per mile
724nominal, from geometric circumference
Inch notation
27.9x8.5R16approximate

Where 215/70R16 fits

  • Inch class: 27.85 in is 0.15 in short of a true 28 inches, inside the 28-inch class (27.50 to 28.49 in).
  • Profile: the 16-inch rim plus two 5.93 in sidewalls make up the overall diameter, and the sidewalls are 43% of it. At 70 series that is a tall profile: the extra sidewall absorbs more of each bump and flexes more in corners.
  • Same 16-inch rim: the next taller catalog size is 235/65R16 (28.03 in, +0.64%) and the next shorter is 225/65R16 (27.52 in, -1.20%).
  • Same 215 mm width: the closest in diameter are 215/70R15 (26.85 in, -3.59%), 215/65R16 (27.00 in, -3.04%), 215/75R15 (27.70 in, -0.55%), 215/65R17 (28.00 in, +0.55%). At the same width, a different profile or rim changes sidewall height and overall diameter, not section width.

Reading the marking: 215 is the section width in millimeters, 70 is the sidewall height as a percentage of that width, and R16 means radial construction for a 16-inch rim. Percentages are measured from 215/70R16.

Similar sizes on other rim diameters

Within 3% of 215/70R16's overall diameter, nearest first. The speed column is the actual speed when a speedometer calibrated for 215/70R16 reads 60 mph.

Catalog tire sizes on other rim diameters with an overall diameter close to 215/70R16
SizeOverall diameterDiameter changeAt 60 mph indicatedCompare
235/70R1527.95 in+0.37%60.22 mphNo comparison page
215/65R1728.00 in+0.55%60.33 mphNo comparison page
215/75R1527.70 in-0.55%59.67 mphNo comparison page
225/60R1727.63 in-0.79%59.53 mphComparison page for 215/70R16 vs 225/60R17
225/75R1528.29 in+1.57%60.94 mphNo comparison page
225/70R1527.40 in-1.61%59.03 mphNo comparison page

For a size without a comparison page, open 215/70R16 in the calculator and enter that size as the proposed tire.

Important: These results compare nominal dimensions. They do not confirm vehicle fitment. Actual clearance varies by tire model, approved rim width, wheel construction, suspension, alignment, body tolerances, steering angle, load, and brake geometry. Verify load and speed ratings and physically test-fit the complete setup before driving.

Physical checks before changing size

  • Approved rim-width range for the exact tire model
  • Load index and speed rating equal to or greater than vehicle requirements
  • Brake-caliper, hub, and wheel-fastener compatibility
  • Fender, liner, suspension, and full-lock steering clearance
  • Clearance at full compression and under expected load
  • Alignment, tire pressure, and manufacturer guidance
  • Professional inspection when variance or clearance is uncertain

Compare another setup

See diameter, speedometer, ride-height, and wheel-position changes.

The calculator opens with 215/70R16 as the current tire and 225/60R17, the published comparison closest in overall diameter, as the proposed tire. Change either size; wheel details stay unknown until you supply them.

Compare 215/70R16 with 225/60R17 in the calculator

Compare 215/70R16 with any size

None keeps the 16-inch rim; each one changes wheel diameter. Diameter changes are measured from 215/70R16.

Larger wheels (plus sizing)

Size source and limits

Listed as a recorded tire size (source: NHTSA consumer-complaint records through May 2021, checked August 19, 2026; see methodology). A recorded size is not a safety, popularity, availability, or fitment rating.

Read the formulas and source policy. Read the editorial and corrections policy.