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385/30R26 tire size

385/30R26 is a metric size: 35.1" tall, 15.2" wide, on a 26" rim — about a 35x15.00R26. The sidewall is 4.5" and the tire turns 575 times per mile.

Diameter 35.1" sidewall 4.55" 26" rim width 385 mm (15.2")
385/30R26: 385 mm wide, sidewall 30% of the width (4.55"), on a 26" rim → 35.09" tall.

385/30R26 specs

Overall diameter (height)35.09" · 891 mm
Section width15.16" · 385 mm
Sidewall height4.55" · 115 mm (30% of width)
Rim diameter26"
Circumference110.25" · 2.800 m
Revolutions per mile575 (357 per km)
Inch (flotation) equivalent35x15.00R26

Equivalent sizes on a 26" 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.

SizeDiameterDifferenceWidthSpeedo at 60
35x13.50R2635.00"-0.27%-42 mm59.8 mphcalculate →
315/40R2635.92"+2.36%-70 mm61.4 mphcalculate →
35x15.50R2635.00"-0.27%+9 mm59.8 mphcalculate →

Try another size against 385/30R26

Questions

What size is 385/30R26 in inches?

385/30R26 is about 35.1" tall and 15.2" wide on a 26-inch rim — roughly a 35x15.00R26 in inch sizing.

What does 385/30R26 mean?

385 mm section width, sidewall 30% of the width (4.55"), radial construction, 26-inch rim.

What tire sizes are equivalent to 385/30R26?

On the same 26" rim, within 3% of the diameter: 35x13.50R26 (-0.27%), 35x15.50R26 (-0.27%), 315/40R26 (+2.36%).

How many revolutions per mile does a 385/30R26 tire make?

About 575 revolutions per mile (circumference 110.3").

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.