CarSpecsHQ

175/70R13 tire size

175/70R13 is a metric size: 22.6" tall, 6.9" wide, on a 13" rim — about a 22.5x7.00R13. The sidewall is 4.8" and the tire turns 891 times per mile.

Diameter 22.6" sidewall 4.82" 13" rim width 175 mm (6.9")
175/70R13: 175 mm wide, sidewall 70% of the width (4.82"), on a 13" rim → 22.65" tall.

175/70R13 specs

Overall diameter (height)22.65" · 575 mm
Section width6.89" · 175 mm
Sidewall height4.82" · 123 mm (70% of width)
Rim diameter13"
Circumference71.14" · 1.807 m
Revolutions per mile891 (553 per km)
Inch (flotation) equivalent22.5x7.00R13

Equivalent sizes on a 13" 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
205/60R1322.69"+0.17%+30 mm60.1 mphcalculate →
155/80R1322.76"+0.52%-20 mm60.3 mphcalculate →
185/70R1323.20"+2.43%+10 mm61.5 mphcalculate →
185/65R1322.47"-0.78%+10 mm59.5 mphcalculate →
22x8.00R1322.00"-2.85%+28 mm58.3 mphcalculate →
145R1322.36"-1.25%-30 mm59.2 mphcalculate →

Try another size against 175/70R13

Questions

What size is 175/70R13 in inches?

175/70R13 is about 22.6" tall and 6.9" wide on a 13-inch rim — roughly a 22.5x7.00R13 in inch sizing.

What does 175/70R13 mean?

175 mm section width, sidewall 70% of the width (4.82"), radial construction, 13-inch rim.

What tire sizes are equivalent to 175/70R13?

On the same 13" rim, within 3% of the diameter: 205/60R13 (+0.17%), 155/80R13 (+0.52%), 185/65R13 (-0.78%), 145R13 (-1.25%), 185/70R13 (+2.43%), 22x8.00R13 (-2.85%).

How many revolutions per mile does a 175/70R13 tire make?

About 891 revolutions per mile (circumference 71.1").

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.