355/40R16 tire size
355/40R16 is a metric size: 27.2" tall, 14.0" wide, on a 16" rim — about a 27x14.00R16. The sidewall is 5.6" and the tire turns 742 times per mile.
355/40R16 specs
| Overall diameter (height) | 27.18" · 690 mm |
|---|---|
| Section width | 13.98" · 355 mm |
| Sidewall height | 5.59" · 142 mm (40% of width) |
| Rim diameter | 16" |
| Circumference | 85.39" · 2.169 m |
| Revolutions per mile | 742 (461 per km) |
| Inch (flotation) equivalent | 27x14.00R16 |
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 | |
|---|---|---|---|---|---|
| 215/65R16 common | 27.00" | -0.65% | -140 mm | 59.6 mph | calculate → |
| 215/60R16 common | 26.16" | -3.77% | -140 mm | 57.7 mph | calculate → |
| 215/70R16 common | 27.85" | +2.46% | -140 mm | 61.5 mph | calculate → |
| 205/65R16 common | 26.49" | -2.53% | -150 mm | 58.5 mph | calculate → |
| 235/65R16 common | 28.03" | +3.11% | -120 mm | 61.9 mph | calculate → |
| 225/60R16 common | 26.63" | -2.03% | -130 mm | 58.8 mph | calculate → |
| 225/70R16 common | 28.40" | +4.49% | -130 mm | 62.7 mph | calculate → |
| 225/65R16 common | 27.52" | +1.23% | -130 mm | 60.7 mph | calculate → |
| 235/60R16 common | 27.10" | -0.29% | -120 mm | 59.8 mph | calculate → |
| 195/75R16 | 27.52" | +1.23% | -160 mm | 60.7 mph | calculate → |
| 205/70R16 | 27.30" | +0.43% | -150 mm | 60.3 mph | calculate → |
| 205/75R16 | 28.11" | +3.40% | -150 mm | 62.0 mph | calculate → |
| 255/50R16 | 26.04" | -4.20% | -100 mm | 57.5 mph | calculate → |
| 145/90R16 | 26.28" | -3.33% | -210 mm | 58.0 mph | calculate → |
| 155/90R16 | 26.98" | -0.72% | -200 mm | 59.6 mph | calculate → |
| 235/55R16 | 26.18" | -3.69% | -120 mm | 57.8 mph | calculate → |
| 195/65R16 | 25.98" | -4.42% | -160 mm | 57.3 mph | calculate → |
| 295/50R16 | 27.61" | +1.59% | -60 mm | 61.0 mph | calculate → |
| 28x11.50R16 | 28.00" | +3.01% | -63 mm | 61.8 mph | calculate → |
| 255/60R16 | 28.05" | +3.19% | -100 mm | 61.9 mph | calculate → |
| 195/80R16 | 28.28" | +4.06% | -160 mm | 62.4 mph | calculate → |
| 285/55R16 | 28.34" | +4.27% | -70 mm | 62.6 mph | calculate → |
| 26x11.50R16 | 26.00" | -4.35% | -63 mm | 57.4 mph | calculate → |
| 315/40R16 | 25.92" | -4.63% | -40 mm | 57.2 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 | |
|---|---|---|---|---|---|
| 235/55R17 common | 27.18" | -0.01% | -120 mm | 60.0 mph | calculate → |
| 215/60R17 common | 27.16" | -0.09% | -140 mm | 59.9 mph | calculate → |
| 225/70R15 | 27.40" | +0.81% | -130 mm | 60.5 mph | calculate → |
| 205/75R15 | 27.11" | -0.28% | -150 mm | 59.8 mph | calculate → |
| 255/60R15 | 27.05" | -0.49% | -100 mm | 59.7 mph | calculate → |
| 255/50R17 | 27.04" | -0.52% | -100 mm | 59.7 mph | calculate → |
| 165/80R17 | 27.39" | +0.78% | -190 mm | 60.5 mph | calculate → |
| 145/90R17 | 27.28" | +0.35% | -210 mm | 60.2 mph | calculate → |
| 27x9.50R15 | 27.00" | -0.67% | -114 mm | 59.6 mph | calculate → |
| 235/65R15 | 27.03" | -0.56% | -120 mm | 59.7 mph | calculate → |
| 27x10.50R15 | 27.00" | -0.67% | -88 mm | 59.6 mph | calculate → |
| 185R15 | 26.94" | -0.87% | -170 mm | 59.5 mph | calculate → |
Try another size against 355/40R16
Questions
What size is 355/40R16 in inches?
355/40R16 is about 27.2" tall and 14.0" wide on a 16-inch rim — roughly a 27x14.00R16 in inch sizing.
What does 355/40R16 mean?
355 mm section width, sidewall 40% of the width (5.59"), radial construction, 16-inch rim.
What tire sizes are equivalent to 355/40R16?
On the same 16" rim, within 3% of the diameter: 235/60R16 (-0.29%), 205/70R16 (+0.43%), 215/65R16 (-0.65%), 155/90R16 (-0.72%), 195/75R16 (+1.23%), 225/65R16 (+1.23%).
How many revolutions per mile does a 355/40R16 tire make?
About 742 revolutions per mile (circumference 85.4").
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.