345/75R16 tire size
345/75R16 is a metric size: 36.4" tall, 13.6" wide, on a 16" rim — about a 36.5x13.50R16. The sidewall is 10.2" and the tire turns 554 times per mile.
345/75R16 specs
| Overall diameter (height) | 36.37" · 924 mm |
|---|---|
| Section width | 13.58" · 345 mm |
| Sidewall height | 10.19" · 259 mm (75% of width) |
| Rim diameter | 16" |
| Circumference | 114.27" · 2.903 m |
| Revolutions per mile | 554 (345 per km) |
| Inch (flotation) equivalent | 36.5x13.50R16 |
Equivalent sizes on a 16" rim
Sizes within ±5% of the overall diameter. Green rows are inside the usual ±3% limit for keeping the speedometer, ABS and gearing right; red rows are bigger changes that need clearance checks.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 315/75R16 | 34.60" | -4.87% | -30 mm | 57.1 mph | calculate → |
| 35x12.50R16 | 35.00" | -3.78% | -27 mm | 57.7 mph | calculate → |
| 37x12.50R16 | 37.00" | +1.72% | -27 mm | 61.0 mph | calculate → |
| 36x12.50R16 | 36.00" | -1.03% | -27 mm | 59.4 mph | calculate → |
| 36x13.50R16 | 36.00" | -1.03% | -2 mm | 59.4 mph | calculate → |
| 385/70R16 | 37.22" | +2.33% | +40 mm | 61.4 mph | calculate → |
| 35x10.50R16 | 35.00" | -3.78% | -78 mm | 57.7 mph | calculate → |
| 35x14.50R16 | 35.00" | -3.78% | +23 mm | 57.7 mph | calculate → |
| 36x13.00R16 | 36.00" | -1.03% | -15 mm | 59.4 mph | calculate → |
| 36x14.50R16 | 36.00" | -1.03% | +23 mm | 59.4 mph | calculate → |
| 37x13.50R16 | 37.00" | +1.72% | -2 mm | 61.0 mph | calculate → |
| 37x13.00R16 | 37.00" | +1.72% | -15 mm | 61.0 mph | calculate → |
| 37x14.50R16 | 37.00" | +1.72% | +23 mm | 61.0 mph | calculate → |
| 37x14.00R16 | 37.00" | +1.72% | +11 mm | 61.0 mph | calculate → |
| 365/75R16 | 37.56" | +3.25% | +20 mm | 61.9 mph | calculate → |
| 35x11.50R16 | 35.00" | -3.78% | -53 mm | 57.7 mph | calculate → |
| 35x15.00R16 | 35.00" | -3.78% | +36 mm | 57.7 mph | calculate → |
| 35x16.00R16 | 35.00" | -3.78% | +61 mm | 57.7 mph | calculate → |
| 38x13.00R16 | 38.00" | +4.47% | -15 mm | 62.7 mph | calculate → |
| 38x15.50R16 | 38.00" | +4.47% | +49 mm | 62.7 mph | calculate → |
| 325/80R16 | 36.47" | +0.27% | -20 mm | 60.2 mph | calculate → |
| 375/65R16 | 35.19" | -3.25% | +30 mm | 58.1 mph | calculate → |
| 395/70R16 | 37.77" | +3.84% | +50 mm | 62.3 mph | calculate → |
| 38x14.50R16 | 38.00" | +4.47% | +23 mm | 62.7 mph | calculate → |
Plus / minus sizing: 15" and 17" rims
Same overall height on a different rim. Check wheel width and clearance before switching.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 355/70R17 | 36.57" | +0.53% | +10 mm | 60.3 mph | calculate → |
Try another size against 345/75R16
Questions
What size is 345/75R16 in inches?
345/75R16 is about 36.4" tall and 13.6" wide on a 16-inch rim — roughly a 36.5x13.50R16 in inch sizing.
What does 345/75R16 mean?
345 mm section width, sidewall 75% of the width (10.19"), radial construction, 16-inch rim.
What tire sizes are equivalent to 345/75R16?
On the same 16" rim, within 3% of the diameter: 325/80R16 (+0.27%), 36x12.50R16 (-1.03%), 36x13.50R16 (-1.03%), 36x13.00R16 (-1.03%), 36x14.50R16 (-1.03%), 37x12.50R16 (+1.72%).
How many revolutions per mile does a 345/75R16 tire make?
About 554 revolutions per mile (circumference 114.3").
How these numbers are computed
Diameter = rim + 2 × sidewall, sidewall = width × aspect ÷ 100, circumference = π × diameter, revolutions per mile = 63,360 ÷ circumference. Real tires differ by brand by a few tenths of an inch. Last reviewed October 14, 2026.