tireheight.com325/30R19 in inches
A 325/30R19 tire is 26.7″ tall and 12.8″ wide, and fits a 19″ wheel. In inches it is written 26.7×12.8R19.
How tall 325/30R19 tires really are
Heights published by Michelin and Toyo for all 7 tires in this size. Their published revolutions per mile work out to 25.9–26.0″ under load (below).
Real 325/30R19 tires measure 26.70–26.73″, against 26.68″ from the size code. Every one runs taller than the size code.
Published revs per mile (777–778) mean the tire rolls like a 25.9–26.0″ tire on the vehicle. Use this for speedometer calibration.
The lightest (Michelin Pilot Sport Cup 2, XL) is 5.2 lb lighter per corner than the heaviest (Michelin Pilot Sport All-Season 4, SL).
7 tires in 325/30R19
Sort by the spec you care about.
| Load | Revs/mi | Source | |||||
|---|---|---|---|---|---|---|---|
| Michelin Pilot Sport Cup 2Performance | XL · 105(Y) | 26.70 | 30.5 | 7.2 | 2,039 | 778 | Spec page |
| Michelin Pilot Sport Cup 2 ConnectPerformance | XL · 105(Y) | 26.70 | 31.0 | 7.2 | 2,039 | 778 | Spec page |
| Michelin Pilot Sport 4 SPerformance | XL · 105(Y) | 26.70 | 32.8 | 9.5 | 2,039 | 778 | Spec page |
| Toyo Proxes R888RPerformance | SL · 101(Y) | 26.73 | 33.2 | 6.3 | 1,819 | 777 | Spec page |
| Michelin Pilot Sport PS2Performance | SL · 94(Y) | 26.70 | 35.0 | 9.5 | 1,477 | 778 | Spec page |
| Toyo Proxes Sport A/SPerformance | XL · 105Y | 26.73 | 35.6 | 9.6 | 2,039 | 777 | Spec page |
| Michelin Pilot Sport All-Season 4Performance | SL · 101(Y) | 26.70 | 35.7 | 10.0 | 1,819 | 778 | Spec page |
Is 325/30R19 a 27-inch tire?
Yes. The size code works out to 26.68″, and the 7 tires here publish 26.70–26.73″, 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.
How to read 325/30R19
A percentage, not a measurement: the sidewall is 30% as tall as the tire is wide, which is 97.5 mm or 3.84 inches.
Radial construction.
Mounts on a 19-inch wheel. Approved wheel widths run 11.0″ to 13.0″.
Each tire carries up to 2,039 lb (925 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 2,039 lb each and the standard-load tires up to 1,819 lb, as published.
| Specification | Inches | Metric |
|---|---|---|
| Overall diameter | 26.68 | 678 mm |
| Section width | 12.80 | 325 mm |
| Sidewall height | 3.84 | 97.5 mm |
| Circumference | 83.8 | 2,129 mm |
| Revolutions per mile (calculated, unloaded) | 756.0 | 470 per km |
| Revolutions per mile (published by manufacturers) | 777–778 | 483 per km |
| Approved wheel width | 11.0–13.0 | 279–330 mm |
Speedometer error after switching to 325/30R19
Questions about 325/30R19
What is 325/30R19 in inches?
26.68 inches tall, 12.80 inches wide, on a 19-inch wheel. Written in inches, that is roughly 26.7×12.8R19.
How much does a 325/30R19 tire weigh?
Between 30.5 lb and 35.7 lb for the 7 tires listed here. The lightest is the Michelin Pilot Sport Cup 2 (XL); the heaviest is the Michelin Pilot Sport All-Season 4 (SL).
What wheel width do I need for 325/30R19?
Manufacturers approve 11.0–13.0″ wide wheels for this size.
How many revolutions per mile does a 325/30R19 make?
Published figures run 777–778 revolutions per mile. The calculated figure is 756.0, but manufacturers measure the tire under load, where it rolls on a smaller radius.
How much taller is 325/30R19 than 275/35R19?
0.10 inches taller on paper (26.68″ vs 26.58″), which raises the axle about 0.05″. Your speedometer will read about 0.4% slow.