225/40R19 tire size
A 225/40R19 tire is 26.1 inches tall and 8.9 inches wide. Here are its full dimensions, what the numbers mean, and the sizes you can swap it for.
- Overall diameter
- 26.09″ (663 mm)
- Section width
- 8.86″ (225 mm)
- Sidewall height
- 3.54″ (90 mm)
- Wheel diameter
- 19″
- Circumference
- 82.0″
- Revolutions per mile
- 773
What 225/40R19 means
- 225: the tire is 225 mm (8.9 in) wide from sidewall to sidewall.
- 40: the sidewall is 40% of the width, 90.0 mm (3.54 in) tall.
- R: radial construction, used by almost every modern tire.
- 19: it fits a 19-inch wheel.
Overall diameter = 19 + 2 × 3.54 = 26.09 inches.
Sizes equivalent to 225/40R19
These sizes are within 3% of the overall diameter, the usual limit for swapping without speedometer problems.
| Size | Diameter | Difference | Speedometer at 60 mph |
|---|---|---|---|
| 215/30R21 | 26.1″ | -0.0% | 60.0 mph actual |
| 225/35R20 | 26.2″ | +0.4% | 60.3 mph actual |
| 215/35R20 | 25.9″ | -0.6% | 59.6 mph actual |
| 205/45R19 | 26.3″ | +0.7% | 60.4 mph actual |
| 225/30R21 | 26.3″ | +0.9% | 60.5 mph actual |
| 205/30R21 | 25.8″ | -0.9% | 59.4 mph actual |
| 245/30R20 | 25.8″ | -1.1% | 59.3 mph actual |
| 215/40R19 | 25.8″ | -1.2% | 59.3 mph actual |
| 235/40R19 | 26.4″ | +1.2% | 60.7 mph actual |
| 245/35R19 | 25.8″ | -1.3% | 59.2 mph actual |
Going a size taller? 235/40R19 is 26.4″ tall, 1.2% more than 225/40R19. Compare any two sizes in the tire size calculator.
See every common size side by side in the tire size chart.
Questions
What is 225/40R19 in inches?
A 225/40R19 tire is about 26.1 inches tall (663 mm) and 8.9 inches wide, on a 19-inch wheel. In flotation sizing that's roughly 26.1x8.9R19.
How tall is a 225/40R19 tire?
The overall diameter is 26.09 inches: the 19-inch wheel plus two 3.54-inch sidewalls. Actual tires vary by a few tenths of an inch between brands and models.
Can I put 235/40R19 instead of 225/40R19?
235/40R19 is 0.31 inches taller (1.2%) and 10 mm wider. That's within the usual 3% limit, but check that your wheel width is approved for it and that it clears the suspension.
How many revolutions per mile does a 225/40R19 make?
About 773 revolutions per mile, from a circumference of 82.0 inches.
