Tire Ruler235/70R16 dimensions
| Overall diameter (height) | 28.95″ · 735 mm |
| Section width | 9.25″ · 235 mm |
| Sidewall height | 6.48″ · 165 mm |
| Wheel diameter | 16″ |
| Rim width (rule of thumb) | 6.5–8″ |
| Circumference | 91.0″ |
| Revolutions per mile | 697 |
| In inches (flotation style) | 29.0 × 9.3R16 |
How it’s calculated: the sidewall is 70% of the 235 mm width = 164.5 mm (6.48″). Add two sidewalls to the 16″ wheel: 16 + 2 × 6.48 = 28.95″.
Bigger tires than 235/70R16 on 16″ wheels
| Size | Height | Taller by | 60 mph reads |
|---|---|---|---|
| 225/75R16 | 29.3″ | +0.33″ (+1.2%) | 60.7 mph |
| 245/70R16 | 29.5″ | +0.55″ (+1.9%) | 61.1 mph |
| 235/75R16 | 29.9″ | +0.93″ (+3.2%) | 61.9 mph |
| 255/70R16 | 30.1″ | +1.10″ (+3.8%) | 62.3 mph |
| 215/85R16 | 30.4″ | +1.44″ (+5.0%) | 63.0 mph |
“60 mph reads” is your real speed when a speedometer set up for 235/70R16 shows 60. Above about 3% taller, most trucks need a leveling kit or lift, and the speedometer should be recalibrated.
Sizes equivalent to 235/70R16
Within 1.5% of the same height on a 16″ wheel. Usually interchangeable for the speedometer; check width, load index and clearance.
| Size | Height | Width | Difference |
|---|---|---|---|
| 225/75R16 | 29.3″ | 8.9″ | +1.2% |
Same height on a different wheel size
Changing wheel size (plus or minus sizing) while keeping the overall height keeps your speedometer right:
- 235/75R15: 28.9″ tall on a 15″ wheel (−0.3%)
- 235/65R17: 29.0″ tall on a 17″ wheel (+0.3%)
- 235/60R18: 29.1″ tall on an 18″ wheel (+0.5%)
- 225/60R18: 28.6″ tall on an 18″ wheel (−1.1%)
- 255/55R18: 29.0″ tall on an 18″ wheel (+0.3%)
- 235/55R19: 29.2″ tall on a 19″ wheel (+0.8%)
- 255/50R19: 29.0″ tall on a 19″ wheel (+0.3%)
- 255/45R20: 29.0″ tall on a 20″ wheel (+0.3%)
- 245/45R20: 28.7″ tall on a 20″ wheel (−0.9%)
- 275/40R20: 28.7″ tall on a 20″ wheel (−1.0%)
Popular 235/70R16 comparisons
Frequently asked questions
Is 235/70R16 a 29 inch tire?
Yes. 235/70R16 is 28.95 inches tall, so it's sold and talked about as a 29-inch tire.
What size is 235/70R16 in inches?
235/70R16 is 29.0 inches tall (overall diameter), 9.3 inches wide, with a 6.5 inch sidewall, and fits a 16 inch wheel.
What tire size is equivalent to 235/70R16?
Sizes within 1.5% of the same diameter on a 16" wheel: 225/75R16 (29.3"). Check load index and width before swapping.
What rim width fits 235/70R16?
As a rule of thumb, about 6.5–8 inches. The tire maker's spec sheet lists the approved range for each model.
How many revolutions per mile does 235/70R16 make?
About 697 revolutions per mile in theory (circumference 91.0 in). Real tires turn slightly more because they flatten under load.