Tire Ruler225/70R16 dimensions
| Overall diameter (height) | 28.40″ · 721 mm |
| Section width | 8.86″ · 225 mm |
| Sidewall height | 6.20″ · 158 mm |
| Wheel diameter | 16″ |
| Rim width (rule of thumb) | 6–8″ |
| Circumference | 89.2″ |
| Revolutions per mile | 710 |
| In inches (flotation style) | 28.4 × 8.9R16 |
How it’s calculated: the sidewall is 70% of the 225 mm width = 157.5 mm (6.20″). Add two sidewalls to the 16″ wheel: 16 + 2 × 6.20 = 28.40″.
Bigger tires than 225/70R16 on 16″ wheels
| Size | Height | Taller by | 60 mph reads |
|---|---|---|---|
| 235/70R16 | 29.0″ | +0.55″ (+1.9%) | 61.2 mph |
| 225/75R16 | 29.3″ | +0.89″ (+3.1%) | 61.9 mph |
| 245/70R16 | 29.5″ | +1.10″ (+3.9%) | 62.3 mph |
| 235/75R16 | 29.9″ | +1.48″ (+5.2%) | 63.1 mph |
| 255/70R16 | 30.1″ | +1.65″ (+5.8%) | 63.5 mph |
“60 mph reads” is your real speed when a speedometer set up for 225/70R16 shows 60. Above about 3% taller, most trucks need a leveling kit or lift, and the speedometer should be recalibrated.
Same height on a different wheel size
Changing wheel size (plus or minus sizing) while keeping the overall height keeps your speedometer right:
- 225/75R15: 28.3″ tall on a 15″ wheel (−0.4%)
- 225/65R17: 28.5″ tall on a 17″ wheel (+0.4%)
- 235/60R17: 28.1″ tall on a 17″ wheel (−1.1%)
- 235/55R18: 28.2″ tall on an 18″ wheel (−0.8%)
- 225/60R18: 28.6″ tall on an 18″ wheel (+0.8%)
- 245/45R20: 28.7″ tall on a 20″ wheel (+1.0%)
- 275/40R20: 28.7″ tall on a 20″ wheel (+0.9%)
Popular 225/70R16 comparisons
Frequently asked questions
Is 225/70R16 a 28 inch tire?
Not quite. 225/70R16 is 28.40 inches tall, between a 28 and a 29 inch tire.
What size is 225/70R16 in inches?
225/70R16 is 28.4 inches tall (overall diameter), 8.9 inches wide, with a 6.2 inch sidewall, and fits a 16 inch wheel.
What tire size is equivalent to 225/70R16?
No common size on a 16" wheel is within 1.5% of 225/70R16's diameter. Use the calculator above to compare any size.
What rim width fits 225/70R16?
As a rule of thumb, about 6–8 inches. The tire maker's spec sheet lists the approved range for each model.
How many revolutions per mile does 225/70R16 make?
About 710 revolutions per mile in theory (circumference 89.2 in). Real tires turn slightly more because they flatten under load.