tireheight.com305/30R19 in inches
A 305/30R19 tire is 26.2″ tall and 12.0″ wide, and fits a 19″ wheel. In inches it is written 26.2×12.0R19.
How tall 305/30R19 tires really are
Heights published by BFGoodrich, General, Michelin and Toyo for all 12 tires in this size. Their published revolutions per mile work out to 25.4–25.5″ under load (below).
Real 305/30R19 tires measure 26.20–26.30″, against 26.20″ from the size code. Most run taller than the size code (11 of 12).
Published revs per mile (791–793) mean the tire rolls like a 25.4–25.5″ tire on the vehicle. Use this for speedometer calibration.
The lightest (General G-MAX RS, XL) is 5.3 lb lighter per corner than the heaviest (Toyo Proxes R888R, XL).
12 tires in 305/30R19
Sort by the spec you care about.
| Load | Revs/mi | Source | |||||
|---|---|---|---|---|---|---|---|
| General G-MAX RSPerformance | XL · 102Y | 26.20 | 26.4 | 10.0 | 1,874 | 793 | Spec page |
| Michelin Pilot Sport Cup 2Performance | SL · 98(Y) | 26.30 | 26.5 | 5.5 | 1,653 | 792 | Spec page |
| Michelin Pilot Sport Cup 2 RPerformance | XL · 102(Y) | 26.30 | 27.4 | 5.5 | 1,874 | 792 | Spec page |
| Michelin Pilot Sport Cup 2Performance | XL · 102(Y) | 26.30 | 28.4 | 7.2 | 1,874 | 792 | Spec page |
| Michelin Pilot Sport Cup 2 ConnectPerformance | XL · 102(Y) | 26.30 | 28.7 | 7.2 | 1,874 | 792 | Spec page |
| Michelin Pilot Sport PS2Performance | XL · 102(Y) | 26.30 | 28.7 | 8.5 | 1,874 | 792 | Spec page |
| BFGoodrich g-Force Rival SPerformance | SL · 98W | 26.26 | 29.2 | 7.2 | 1,653 | 792 | Spec page |
| BFGoodrich g-Force Rival+Performance | SL · 98W | 26.26 | 29.4 | 7.2 | 1,653 | 792 | Spec page |
| Michelin Pilot Sport 4 SPerformance | XL · 102(Y) | 26.30 | 29.7 | 9.5 | 1,874 | 792 | Spec page |
| Michelin Pilot Sport 4 SPerformance | XL · 102(Y) | 26.30 | 30.1 | 9.0 | 1,874 | 792 | Spec page |
| Toyo Proxes Sport RPerformance | XL · 102W | 26.30 | 30.6 | 7.2 | 1,874 | 791 | Spec page |
| Toyo Proxes R888RPerformance | XL · 102(Y) | 26.26 | 31.7 | 6.3 | 1,874 | 791 | Spec page |
Is 305/30R19 a 26-inch tire?
Yes. The size code works out to 26.20″, and the 12 tires here publish 26.20–26.30″, so people call it a 26.
Compare with nearby sizes
Differences in overall diameter, calculated from each size code.
How to read 305/30R19
A percentage, not a measurement: the sidewall is 30% as tall as the tire is wide, which is 91.5 mm or 3.60 inches.
Radial construction.
Mounts on a 19-inch wheel. Approved wheel widths run 10.5″ to 11.5″.
Each tire carries up to 1,874 lb (850 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 1,874 lb each and the standard-load tires up to 1,653 lb, as published.
| Specification | Inches | Metric |
|---|---|---|
| Overall diameter | 26.20 | 666 mm |
| Section width | 12.01 | 305 mm |
| Sidewall height | 3.60 | 91.5 mm |
| Circumference | 82.3 | 2,091 mm |
| Revolutions per mile (calculated, unloaded) | 769.6 | 478 per km |
| Revolutions per mile (published by manufacturers) | 791–793 | 492–493 per km |
| Approved wheel width | 10.5–11.5 | 267–292 mm |
Speedometer error after switching to 305/30R19
Questions about 305/30R19
What is 305/30R19 in inches?
26.20 inches tall, 12.01 inches wide, on a 19-inch wheel. Written in inches, that is roughly 26.2×12.0R19.
How much does a 305/30R19 tire weigh?
Between 26.4 lb and 31.7 lb for the 12 tires listed here. The lightest is the General G-MAX RS (XL); the heaviest is the Toyo Proxes R888R (XL).
What wheel width do I need for 305/30R19?
Manufacturers approve 10.5–11.5″ wide wheels for this size.
How many revolutions per mile does a 305/30R19 make?
Published figures run 791–793 revolutions per mile. The calculated figure is 769.6, but manufacturers measure the tire under load, where it rolls on a smaller radius.
How much taller is 305/30R19 than 225/40R19?
0.12 inches taller on paper (26.20″ vs 26.09″), which raises the axle about 0.06″. Your speedometer will read about 0.5% slow.