Tire Ruler245/70R16 dimensions
| Overall diameter (height) | 29.50″ · 749 mm |
| Section width | 9.65″ · 245 mm |
| Sidewall height | 6.75″ · 172 mm |
| Wheel diameter | 16″ |
| Rim width (rule of thumb) | 7–8.5″ |
| Circumference | 92.7″ |
| Revolutions per mile | 684 |
| In inches (flotation style) | 29.5 × 9.6R16 |
How it’s calculated: the sidewall is 70% of the 245 mm width = 171.5 mm (6.75″). Add two sidewalls to the 16″ wheel: 16 + 2 × 6.75 = 29.50″.
Bigger tires than 245/70R16 on 16″ wheels
| Size | Height | Taller by | 60 mph reads |
|---|---|---|---|
| 235/75R16 | 29.9″ | +0.37″ (+1.3%) | 60.8 mph |
| 255/70R16 | 30.1″ | +0.55″ (+1.9%) | 61.1 mph |
| 215/85R16 | 30.4″ | +0.89″ (+3.0%) | 61.8 mph |
| 245/75R16 | 30.5″ | +0.96″ (+3.3%) | 62.0 mph |
| 265/70R16 | 30.6″ | +1.10″ (+3.7%) | 62.2 mph |
“60 mph reads” is your real speed when a speedometer set up for 245/70R16 shows 60. Above about 3% taller, most trucks need a leveling kit or lift, and the speedometer should be recalibrated.
Sizes equivalent to 245/70R16
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″ | −0.7% |
| 235/75R16 | 29.9″ | 9.3″ | +1.3% |
Same height on a different wheel size
Changing wheel size (plus or minus sizing) while keeping the overall height keeps your speedometer right:
- 245/65R17: 29.5″ tall on a 17″ wheel (+0.1%)
- 245/60R18: 29.6″ tall on an 18″ wheel (+0.2%)
- 235/60R18: 29.1″ tall on an 18″ wheel (−1.4%)
- 235/55R19: 29.2″ tall on a 19″ wheel (−1.1%)
- 245/55R19: 29.6″ tall on a 19″ wheel (+0.4%)
- 245/50R20: 29.6″ tall on a 20″ wheel (+0.5%)
- 275/45R20: 29.7″ tall on a 20″ wheel (+0.8%)
- 265/45R20: 29.4″ tall on a 20″ wheel (−0.4%)
Popular 245/70R16 comparisons
Frequently asked questions
Is 245/70R16 a 30 inch tire?
Not quite. 245/70R16 is 29.50 inches tall, between a 29 and a 30 inch tire.
What size is 245/70R16 in inches?
245/70R16 is 29.5 inches tall (overall diameter), 9.6 inches wide, with a 6.8 inch sidewall, and fits a 16 inch wheel.
What tire size is equivalent to 245/70R16?
Sizes within 1.5% of the same diameter on a 16" wheel: 225/75R16 (29.3"), 235/75R16 (29.9"). Check load index and width before swapping.
What rim width fits 245/70R16?
As a rule of thumb, about 7–8.5 inches. The tire maker's spec sheet lists the approved range for each model.
How many revolutions per mile does 245/70R16 make?
About 684 revolutions per mile in theory (circumference 92.7 in). Real tires turn slightly more because they flatten under load.