tireheight.com255/55R19 in inches
A 255/55R19 tire is 30.0″ tall and 10.0″ wide, and fits a 19″ wheel. In inches it is written 30.0×10.0R19.
How tall 255/55R19 tires really are
Heights published by BFGoodrich, Michelin and Toyo for all 13 tires in this size. Their published revolutions per mile work out to 29.1″ under load (below).
Real 255/55R19 tires measure 30.00–30.04″, against 30.04″ from the size code. They run both taller and shorter than the size code.
Published revs per mile (692) mean the tire rolls like a 29.1″ tire on the vehicle. Use this for speedometer calibration.
The lightest (Michelin Pilot Sport 4 SUV, XL) is 11.1 lb lighter per corner than the heaviest (BFGoodrich Trail-Terrain T/A+, XL).
13 tires in 255/55R19
Sort by the spec you care about.
| Load | Revs/mi | Source | |||||
|---|---|---|---|---|---|---|---|
| Michelin Pilot Sport 4 SUVPerformance | XL · 111Y | 30.00 | 31.1 | 9.5 | 2,403 | 692 | Spec page |
| Michelin CrossClimate2All-season | XL · 111V | 30.00 | 31.2 | 10.0 | 2,403 | 692 | Spec page |
| Michelin Latitude Sport 3Performance | XL · 111(Y) | 30.00 | 33.2 | 8.5 | 2,403 | 692 | Spec page |
| Michelin X-Ice Snow+Winter | XL · 111H | 30.04 | 34.2 | 10.5 | 2,403 | 692 | Spec page |
| Michelin Pilot Alpin 5Winter | XL · 111V | 30.04 | 34.8 | 10.5 | 2,403 | 692 | Spec page |
| Toyo Celsius SportPerformance | XL · 111W | 30.04 | 35.0 | 10.1 | 2,403 | 692 | Spec page |
| Michelin X-Ice SnowWinter | XL · 111T | 30.04 | 35.1 | 10.5 | 2,403 | 692 | Spec page |
| Toyo Proxes ST IIIPerformance | XL · 111V | 30.04 | 36.4 | 10.1 | 2,403 | 692 | Spec page |
| Toyo Open Country A/T IIIAll-terrain | XL · 111H | 30.04 | 37.1 | 13.2 | 2,403 | 692 | Spec page |
| Toyo Proxes G-Tour | XL · 111V | 30.00 | 37.3 | 9.6 | 2,403 | 692 | Spec page |
| Toyo OPEN COUNTRY Q/TAll-season | XL · 111V | 30.04 | 37.9 | 12.2 | 2,403 | 692 | Spec page |
| BFGoodrich Trail-Terrain T/AAll-terrain | XL · 111H | 30.00 | 41.2 | 12.5 | 2,403 | 692 | Spec page |
| BFGoodrich Trail-Terrain T/A+ | XL · 111H | 30.00 | 42.2 | 12.5 | 2,403 | 692 | Spec page |
Is 255/55R19 a 30-inch tire?
Yes. The size code works out to 30.04″, and the 13 tires here publish 30.00–30.04″, so people call it a 30.
All 30-inch tire sizes, on every wheel size.
Compare with nearby sizes
Differences in overall diameter, calculated from each size code.
How to read 255/55R19
A percentage, not a measurement: the sidewall is 55% as tall as the tire is wide, which is 140.3 mm or 5.52 inches.
Radial construction.
Mounts on a 19-inch wheel. Approved wheel widths run 7.0″ to 9.0″.
Each tire carries up to 2,403 lb (1,090 kg) at its maximum pressure.
Rated for up to 149 mph sustained.
Printed after the size.
| Specification | Inches | Metric |
|---|---|---|
| Overall diameter | 30.04 | 763 mm |
| Section width | 10.04 | 255 mm |
| Sidewall height | 5.52 | 140.3 mm |
| Circumference | 94.4 | 2,397 mm |
| Revolutions per mile (calculated, unloaded) | 671.3 | 417 per km |
| Revolutions per mile (published by manufacturers) | 692 | 430 per km |
| Approved wheel width | 7.0–9.0 | 178–229 mm |
Speedometer error after switching to 255/55R19
Questions about 255/55R19
What is 255/55R19 in inches?
30.04 inches tall, 10.04 inches wide, on a 19-inch wheel. Written in inches, that is roughly 30.0×10.0R19.
How much does a 255/55R19 tire weigh?
Between 31.1 lb and 42.2 lb for the 13 tires listed here. The lightest is the Michelin Pilot Sport 4 SUV (XL); the heaviest is the BFGoodrich Trail-Terrain T/A+ (XL).
What wheel width do I need for 255/55R19?
Manufacturers approve 7.0–9.0″ wide wheels for this size.
How many revolutions per mile does a 255/55R19 make?
Published figures run 692 revolutions per mile. The calculated figure is 671.3, but manufacturers measure the tire under load, where it rolls on a smaller radius.
How much taller is 255/55R19 than 275/50R19?
0.22 inches taller on paper (30.04″ vs 29.83″), which raises the axle about 0.11″. Your speedometer will read about 0.7% slow.