225/70R16 tire size
A 225/70R16 tire is 28.4 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
- 28.40″ (721 mm)
- Section width
- 8.86″ (225 mm)
- Sidewall height
- 6.20″ (158 mm)
- Wheel diameter
- 16″
- Circumference
- 89.2″
- Revolutions per mile
- 710
What 225/70R16 means
- 225: the tire is 225 mm (8.9 in) wide from sidewall to sidewall.
- 70: the sidewall is 70% of the width, 157.5 mm (6.20 in) tall.
- R: radial construction, used by almost every modern tire.
- 16: it fits a 16-inch wheel.
Overall diameter = 16 + 2 × 6.20 = 28.40 inches.
Sizes equivalent to 225/70R16
These sizes are within 3% of the overall diameter, the usual limit for swapping without speedometer problems.
| Size | Diameter | Difference | Speedometer at 60 mph |
|---|---|---|---|
| 205/65R18 | 28.5″ | +0.3% | 60.2 mph actual |
| 205/70R17 | 28.3″ | -0.4% | 59.8 mph actual |
| 225/65R17 | 28.5″ | +0.4% | 60.2 mph actual |
| 245/65R16 | 28.5″ | +0.5% | 60.3 mph actual |
| 245/60R17 | 28.6″ | +0.6% | 60.4 mph actual |
| 245/55R18 | 28.6″ | +0.7% | 60.4 mph actual |
| 235/55R18 | 28.2″ | -0.8% | 59.5 mph actual |
| 225/60R18 | 28.6″ | +0.8% | 60.5 mph actual |
| 215/60R18 | 28.2″ | -0.9% | 59.5 mph actual |
| 205/75R16 | 28.1″ | -1.0% | 59.4 mph actual |
Going a size taller? 235/70R16 is 29.0″ tall, 1.9% more than 225/70R16. Compare any two sizes in the tire size calculator.
See every common size side by side in the tire size chart.
Questions
What is 225/70R16 in inches?
A 225/70R16 tire is about 28.4 inches tall (721 mm) and 8.9 inches wide, on a 16-inch wheel. In flotation sizing that's roughly 28.4x8.9R16.
How tall is a 225/70R16 tire?
The overall diameter is 28.40 inches: the 16-inch wheel plus two 6.20-inch sidewalls. Actual tires vary by a few tenths of an inch between brands and models.
Can I put 235/70R16 instead of 225/70R16?
235/70R16 is 0.55 inches taller (1.9%) 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 225/70R16 make?
About 710 revolutions per mile, from a circumference of 89.2 inches.
