tireheight.com

225/55R17 in inches

A 225/55R17 tire is 26.7″ tall and 8.9″ wide, and fits a 17″ wheel. In inches it is written 26.7×8.9R17.

Diameter26.74″
Width8.86″
Sidewall4.87″
225/55R17 drawn to scale: 26.74 inch diameter, 4.87 inch sidewall, 17 inch wheel, 8.86 inch tread width17″ wheel4.87″26.74″ overall8.86″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 225/55R17 tires really are

Heights published by BFGoodrich, General, Michelin and Toyo for all 25 tires in this size. Their published revolutions per mile work out to 26.0″ under load (below).

Real 225/55R17 tires measure 26.70–27.10″, against 26.74″ from the size code. They run both taller and shorter than the size code.

  1. Michelin Pilot Sport All-Season 427.10″ +0.36″
  2. Michelin CrossClimate226.80″ +0.06″
  3. Michelin Pilot Sport 526.80″ +0.06″
  4. Michelin Primacy MXM426.80″ +0.06″
  5. Toyo Proxes G-Tour26.80″ +0.06″
  6. Toyo Celsius Sport26.77″ +0.03″
  7. Toyo Extensa A/S II · 226.77–26.77″ +0.03″
  8. Toyo Extensa HP II26.77″ +0.03″
  9. Toyo Observe G3-Ice26.77″ +0.03″
  10. BFGoodrich Advantage Control · 326.77″ +0.03″
  11. BFGoodrich g-Force COMP-2 A/S PLUS26.77″ +0.03″
  12. BFGoodrich g-Force Phenom T/A26.77″ +0.03″
  13. Michelin X-Ice Snow26.77″ +0.03″
  14. Michelin X-Ice Snow+26.77″ +0.03″
  15. Toyo Celsius II26.77″ +0.03″
  16. General AltiMAX Arctic X26.70″ −0.04″
  17. General AltiMAX RT45 · 326.70″ −0.04″
  18. General AltiMAX365 AW26.70″ −0.04″
  19. General G-MAX AS0726.70″ −0.04″
  20. Michelin Defender226.70″ −0.04″
Each bar runs from the size code's 26.74″ (the orange line) to the model's published height. The track spans 1.0″. Where a model comes in several load ranges, the darker part shows its range of heights; the number after the name is how many versions it comes in.
Height under load26.0″

Published revs per mile (776–777) mean the tire rolls like a 26.0″ tire on the vehicle. Use this for speedometer calibration.

Weight spread23.5–29.9 lb

The lightest (General AltiMAX365 AW, SL) is 6.4 lb lighter per corner than the heaviest (Michelin Primacy MXM4, SL).

25 tires in 225/55R17

Sort by the spec you care about.

LoadRevs/miSource
General AltiMAX365 AWTouringSL · 97V26.7023.511.01,609777Spec page
Michelin Pilot Sport 5PerformanceXL · 101(Y)26.8023.69.01,819777Spec page
General AltiMAX RT45TouringSL · 97V26.7024.111.01,609777Spec page
Michelin X-Ice SnowWinterXL · 101H26.7724.410.51,819777Spec page
General AltiMAX RT45TouringSL · 97T26.7024.711.01,609777Spec page
General AltiMAX RT45TouringSL · 97H26.7024.711.01,609777Spec page
Michelin CrossClimate2All-seasonXL · 101V26.8024.710.01,819777Spec page
General G-MAX AS07PerformanceSL · 97W26.7024.810.01,609777Spec page
Toyo Extensa A/S IIAll-seasonSL · 97V26.7725.810.61,609776Spec page
General AltiMAX Arctic XWinterXL · 101T26.7026.012.01,819777Spec page
Michelin Pilot Sport All-Season 4PerformanceXL · 101Y27.1026.410.01,819777Spec page
Toyo Extensa HP IIPerformanceSL · 97V26.7726.59.31,609776Spec page
Toyo Celsius SportPerformanceXL · 101V26.7726.710.31,819776Spec page
BFGoodrich Advantage ControlAll-seasonSL · 97V26.7726.710.51,609777Spec page
Toyo Celsius IITouringXL · 101V26.7726.911.11,819776Spec page
BFGoodrich Advantage ControlAll-seasonXL · 101H26.7726.911.51,819777Spec page
BFGoodrich Advantage ControlAll-seasonXL · 101W26.7726.910.51,819777Spec page
Toyo Proxes G-TourXL · 101V26.8027.111.71,819776Spec page
BFGoodrich g-Force COMP-2 A/S PLUSPerformanceSL · 97W26.7727.49.01,609777Spec page
BFGoodrich g-Force Phenom T/APerformanceXL · 101W26.7727.88.51,819777Spec page
Toyo Extensa A/S IIAll-seasonSL · 97H26.7728.011.51,609776Spec page
Toyo Observe G3-IceWinterXL · 101T26.7728.211.31,819776Spec page
Michelin X-Ice Snow+WinterXL · 101H26.7728.710.51,819777Spec page
Michelin Defender2All-seasonXL · 101H26.7029.510.51,819777Spec page
Michelin Primacy MXM4TouringSL · 97H26.8029.99.51,609777Spec page

Is 225/55R17 a 27-inch tire?

≈27″

Yes. The size code works out to 26.74″, and the 25 tires here publish 26.70–27.10″, so people call it a 27.

All 27-inch tire sizes, on every wheel size.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 225/55R17Difference
255/45R1726.04-0.71″-2.6%
195/60R1726.21-0.53″-2.0%
335/35R1726.23-0.51″-1.9%
235/50R1726.25-0.49″-1.8%
215/55R1726.31-0.43″-1.6%
245/50R1726.65-0.10″-0.4%
245/45R1826.68-0.06″-0.2%
315/35R1826.68-0.06″-0.2%
215/60R1727.16+0.41″+1.5%
235/55R1727.18+0.43″+1.6%

How to read 225/55R17

How to read any tire size

225/55R17 97V as printed on the tire sidewall, with each part numbered225/55R17 97V123456
How 225/55R17 97V is printed on the sidewall. It's the most common code among the 25 tires here (5 of them); tires in this size come in other load and speed ratings too.
1225Section width

225 mm across the widest point, or 8.86 inches. Every 225 size

255Aspect ratio

A percentage, not a measurement: the sidewall is 55% as tall as the tire is wide, which is 123.8 mm or 4.87 inches.

3RConstruction

Radial construction.

417Wheel diameter

Mounts on a 17-inch wheel. Approved wheel widths run 6.0″ to 8.0″.

597Load index

Each tire carries up to 1,609 lb (730 kg) at its maximum pressure.

6VSpeed rating

Rated for up to 149 mph sustained.

SpecificationInchesMetric
Overall diameter26.74679 mm
Section width8.86225 mm
Sidewall height4.87123.8 mm
Circumference84.02,134 mm
Revolutions per mile (calculated, unloaded)754.1469 per km
Revolutions per mile (published by manufacturers)776–777482–483 per km
Approved wheel width6.0–8.0152–203 mm

Speedometer error after switching to 225/55R17

Your actual speed– mph

Questions about 225/55R17

What is 225/55R17 in inches?

26.74 inches tall, 8.86 inches wide, on a 17-inch wheel. Written in inches, that is roughly 26.7×8.9R17.

How much does a 225/55R17 tire weigh?

Between 23.5 lb and 29.9 lb for the 25 tires listed here. The lightest is the General AltiMAX365 AW (SL); the heaviest is the Michelin Primacy MXM4 (SL).

What wheel width do I need for 225/55R17?

Manufacturers approve 6.0–8.0″ wide wheels for this size.

How many revolutions per mile does a 225/55R17 make?

Published figures run 776–777 revolutions per mile. The calculated figure is 754.1, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 225/55R17 than 245/50R17?

0.10 inches taller on paper (26.74″ vs 26.65″), which raises the axle about 0.05″. Your speedometer will read about 0.4% slow.