tireheight.com265/30R20 in inches
A 265/30R20 tire is 26.3″ tall and 10.4″ wide, and fits a 20″ wheel. In inches it is written 26.3×10.4R20.
How tall 265/30R20 tires really are
Heights published by Michelin and Toyo for all 7 tires in this size. Their published revolutions per mile work out to 25.5″ under load (below).
Real 265/30R20 tires measure 26.30″, against 26.26″ from the size code. Every one runs taller than the size code.
Published revs per mile (790–791) mean the tire rolls like a 25.5″ tire on the vehicle. Use this for speedometer calibration.
The lightest (Michelin Pilot Sport Cup 2 Connect, XL) is 3.6 lb lighter per corner than the heaviest (Michelin Pilot Sport All-Season 4, XL).
7 tires in 265/30R20
Sort by the spec you care about.
| Load | Revs/mi | Source | |||||
|---|---|---|---|---|---|---|---|
| Michelin Pilot Sport Cup 2 ConnectPerformance | XL · 94(Y) | 26.30 | 23.3 | 7.2 | 1,477 | 791 | Spec page |
| Michelin Pilot Sport 4 SPerformance | XL · 94(Y) | 26.30 | 23.8 | 9.0 | 1,477 | 791 | Spec page |
| Michelin Pilot Super SportPerformance | XL · 94(Y) | 26.30 | 24.0 | 9.0 | 1,477 | 791 | Spec page |
| Michelin Pilot Alpin PA4Winter | XL · 94W | 26.30 | 24.6 | 10.5 | 1,477 | 791 | Spec page |
| Michelin Pilot Sport 4 SPerformance | XL · 94(Y) | 26.30 | 24.7 | 9.5 | 1,477 | 791 | Spec page |
| Toyo Proxes Sport 2Performance | XL · 94(Y) | 26.30 | 25.4 | 9.2 | 1,477 | 790 | Spec page |
| Michelin Pilot Sport All-Season 4Performance | XL · 94Y | 26.30 | 26.9 | 10.0 | 1,477 | 791 | Spec page |
Is 265/30R20 a 26-inch tire?
Yes. The size code works out to 26.26″, and the 7 tires here publish 26.30″, so people call it a 26.
Compare with nearby sizes
Differences in overall diameter, calculated from each size code.
How to read 265/30R20
A percentage, not a measurement: the sidewall is 30% as tall as the tire is wide, which is 79.5 mm or 3.13 inches.
Radial construction.
Mounts on a 20-inch wheel. Approved wheel widths run 9.0″ to 10.0″.
Each tire carries up to 1,477 lb (670 kg) at its maximum pressure.
Rated for up to 186 mph sustained.
Printed after the size.
| Specification | Inches | Metric |
|---|---|---|
| Overall diameter | 26.26 | 667 mm |
| Section width | 10.43 | 265 mm |
| Sidewall height | 3.13 | 79.5 mm |
| Circumference | 82.5 | 2,095 mm |
| Revolutions per mile (calculated, unloaded) | 768.0 | 477 per km |
| Revolutions per mile (published by manufacturers) | 790–791 | 491–492 per km |
| Approved wheel width | 9.0–10.0 | 229–254 mm |
Speedometer error after switching to 265/30R20
Questions about 265/30R20
What is 265/30R20 in inches?
26.26 inches tall, 10.43 inches wide, on a 20-inch wheel. Written in inches, that is roughly 26.3×10.4R20.
How much does a 265/30R20 tire weigh?
Between 23.3 lb and 26.9 lb for the 7 tires listed here. The lightest is the Michelin Pilot Sport Cup 2 Connect (XL); the heaviest is the Michelin Pilot Sport All-Season 4 (XL).
What wheel width do I need for 265/30R20?
Manufacturers approve 9.0–10.0″ wide wheels for this size.
How many revolutions per mile does a 265/30R20 make?
Published figures run 790–791 revolutions per mile. The calculated figure is 768.0, but manufacturers measure the tire under load, where it rolls on a smaller radius.
How much taller is 265/30R20 than 225/35R20?
0.06 inches taller on paper (26.26″ vs 26.20″), which raises the axle about 0.03″. Your speedometer will read about 0.2% slow.