tireheight.com265/35R21 in inches
A 265/35R21 tire is 28.3″ tall and 10.4″ wide, and fits a 21″ wheel. In inches it is written 28.3×10.4R21.
How tall 265/35R21 tires really are
Heights published by Michelin and Toyo for all 9 tires in this size. Their published revolutions per mile work out to 27.4–27.5″ under load (below).
Real 265/35R21 tires measure 28.30–28.31″, against 28.30″ from the size code. They run both taller and shorter than the size code.
Published revs per mile (734–735) mean the tire rolls like a 27.4–27.5″ tire on the vehicle. Use this for speedometer calibration.
The lightest (Michelin Pilot Sport 4 S, XL) is 4.1 lb lighter per corner than the heaviest (Toyo Proxes Sport A/S, XL).
9 tires in 265/35R21
Sort by the spec you care about.
| Load | Revs/mi | Source | |||||
|---|---|---|---|---|---|---|---|
| Michelin Pilot Sport 4 SPerformance | XL · 101(Y) | 28.30 | 26.6 | 9.5 | 1,819 | 735 | Spec page |
| Michelin Pilot Sport 4 SPerformance | XL · 101(Y) | 28.30 | 26.8 | 9.0 | 1,819 | 735 | Spec page |
| Michelin Pilot Sport 4 SPerformance | XL · 101(Y) | 28.30 | 26.9 | 8.0 | 1,819 | 735 | Spec page |
| Michelin Pilot Sport EVPerformance | XL · 101Y | 28.30 | 27.7 | 8.5 | 1,819 | 735 | Spec page |
| Michelin Pilot Sport 4 SPerformance | XL · 101Y | 28.30 | 28.1 | 9.0 | 1,819 | 735 | Spec page |
| Michelin Pilot Sport All-Season 4Performance | XL · 101Y | 28.30 | 28.7 | 10.0 | 1,819 | 735 | Spec page |
| Toyo Proxes Sport 2Performance | XL · 101(Y) | 28.30 | 30.2 | 9.2 | 1,819 | 734 | Spec page |
| Toyo Proxes Sport A/SPerformance | XL · 103(Y) | 28.30 | 30.3 | 10.2 | 1,929 | 734 | Spec page |
| Toyo Proxes Sport A/SPerformance | XL · 101(Y) | 28.31 | 30.7 | 9.6 | 1,819 | 734 | Spec page |
Is 265/35R21 a 28-inch tire?
Yes. The size code works out to 28.30″, and the 9 tires here publish 28.30–28.31″, so people call it a 28.
All 28-inch tire sizes, on every wheel size.
Compare with nearby sizes
Differences in overall diameter, calculated from each size code.
How to read 265/35R21
A percentage, not a measurement: the sidewall is 35% as tall as the tire is wide, which is 92.8 mm or 3.65 inches.
Radial construction.
Mounts on a 21-inch wheel. Approved wheel widths run 9.0″ to 10.5″.
Each tire carries up to 1,819 lb (825 kg) at its maximum pressure.
Rated for up to 186 mph sustained.
Printed after the size.
| Specification | Inches | Metric |
|---|---|---|
| Overall diameter | 28.30 | 719 mm |
| Section width | 10.43 | 265 mm |
| Sidewall height | 3.65 | 92.8 mm |
| Circumference | 88.9 | 2,258 mm |
| Revolutions per mile (calculated, unloaded) | 712.6 | 443 per km |
| Revolutions per mile (published by manufacturers) | 734–735 | 456–457 per km |
| Approved wheel width | 9.0–10.5 | 229–267 mm |
Speedometer error after switching to 265/35R21
Questions about 265/35R21
What is 265/35R21 in inches?
28.30 inches tall, 10.43 inches wide, on a 21-inch wheel. Written in inches, that is roughly 28.3×10.4R21.
How much does a 265/35R21 tire weigh?
Between 26.6 lb and 30.7 lb for the 9 tires listed here. The lightest is the Michelin Pilot Sport 4 S (XL); the heaviest is the Toyo Proxes Sport A/S (XL).
What wheel width do I need for 265/35R21?
Manufacturers approve 9.0–10.5″ wide wheels for this size.
How many revolutions per mile does a 265/35R21 make?
Published figures run 734–735 revolutions per mile. The calculated figure is 712.6, but manufacturers measure the tire under load, where it rolls on a smaller radius.
How much taller is 265/35R21 than 305/30R21?
0.10 inches taller on paper (28.30″ vs 28.20″), which raises the axle about 0.05″. Your speedometer will read about 0.3% slow.