tireheight.com285/30R19 in inches
A 285/30R19 tire is 25.7″ tall and 11.2″ wide, and fits a 19″ wheel. In inches it is written 25.7×11.2R19.
How tall 285/30R19 tires really are
Heights published by Michelin and Toyo for all 8 tires in this size. Their published revolutions per mile work out to 24.6–25.0″ under load (below).
Real 285/30R19 tires measure 25.32–25.80″, against 25.73″ from the size code. Most run taller than the size code (7 of 8).
- Michelin Pilot Sport 4 S · 225.80″ +0.07″
- Michelin Pilot Sport All-Season 4 · 225.80″ +0.07″
- Michelin Pilot Sport Cup 225.80″ +0.07″
- Michelin Pilot Super Sport25.80″ +0.07″
- Michelin Pilot Alpin PA425.79″ +0.06″
- Toyo Proxes Sport A/S25.32″ −0.42″
Published revs per mile (807–821) mean the tire rolls like a 24.6–25.0″ tire on the vehicle. Use this for speedometer calibration.
The lightest (Toyo Proxes Sport A/S, XL) is 6.0 lb lighter per corner than the heaviest (Michelin Pilot Sport All-Season 4, SL).
8 tires in 285/30R19
Sort by the spec you care about.
| Load | Revs/mi | Source | |||||
|---|---|---|---|---|---|---|---|
| Toyo Proxes Sport A/SPerformance | XL · 98Y | 25.32 | 24.5 | 9.4 | 1,653 | 821 | Spec page |
| Michelin Pilot Sport 4 SPerformance | XL · 98(Y) | 25.80 | 24.9 | 9.5 | 1,653 | 807 | Spec page |
| Michelin Pilot Sport 4 SPerformance | XL · 98(Y) | 25.80 | 25.0 | 9.0 | 1,653 | 807 | Spec page |
| Michelin Pilot Alpin PA4Winter | XL · 98W | 25.79 | 25.6 | 10.5 | 1,653 | 807 | Spec page |
| Michelin Pilot Sport All-Season 4Performance | XL · 98Y | 25.80 | 28.3 | 10.0 | 1,653 | 807 | Spec page |
| Michelin Pilot Sport Cup 2Performance | SL · 94(Y) | 25.80 | 29.0 | 5.9 | 1,477 | 807 | Spec page |
| Michelin Pilot Super SportPerformance | SL · 94(Y) | 25.80 | 29.8 | 7.4 | 1,477 | 807 | Spec page |
| Michelin Pilot Sport All-Season 4Performance | SL · 94(Y) | 25.80 | 30.5 | 10.0 | 1,477 | 807 | Spec page |
Is 285/30R19 a 26-inch tire?
Yes. The size code works out to 25.73″, and the 8 tires here publish 25.32–25.80″, so people call it a 26.
Compare with nearby sizes
Differences in overall diameter, calculated from each size code.
How to read 285/30R19
A percentage, not a measurement: the sidewall is 30% as tall as the tire is wide, which is 85.5 mm or 3.37 inches.
Radial construction.
Mounts on a 19-inch wheel. Approved wheel widths run 9.5″ to 10.5″.
Each tire carries up to 1,653 lb (750 kg) at its maximum pressure.
Rated for up to 186 mph sustained.
Printed after the size. In this size the XL tires carry up to 1,653 lb each and the standard-load tires up to 1,477 lb, as published.
| Specification | Inches | Metric |
|---|---|---|
| Overall diameter | 25.73 | 654 mm |
| Section width | 11.22 | 285 mm |
| Sidewall height | 3.37 | 85.5 mm |
| Circumference | 80.8 | 2,053 mm |
| Revolutions per mile (calculated, unloaded) | 783.8 | 487 per km |
| Revolutions per mile (published by manufacturers) | 807–821 | 501–510 per km |
| Approved wheel width | 9.5–10.5 | 241–267 mm |
Speedometer error after switching to 285/30R19
Questions about 285/30R19
What is 285/30R19 in inches?
25.73 inches tall, 11.22 inches wide, on a 19-inch wheel. Written in inches, that is roughly 25.7×11.2R19.
How much does a 285/30R19 tire weigh?
Between 24.5 lb and 30.5 lb for the 8 tires listed here. The lightest is the Toyo Proxes Sport A/S (XL); the heaviest is the Michelin Pilot Sport All-Season 4 (SL).
What wheel width do I need for 285/30R19?
Manufacturers approve 9.5–10.5″ wide wheels for this size.
How many revolutions per mile does a 285/30R19 make?
Published figures run 807–821 revolutions per mile. The calculated figure is 783.8, but manufacturers measure the tire under load, where it rolls on a smaller radius.
How much taller is 285/30R19 than 275/30R19?
0.24 inches taller on paper (25.73″ vs 25.50″), which raises the axle about 0.12″. Your speedometer will read about 0.9% slow.