CarSpecsHQ

225/75R17 tire size

225/75R17 is a metric size: 30.3" tall, 8.9" wide, on a 17" rim — about a 30.5x9.00R17. The sidewall is 6.6" and the tire turns 666 times per mile.

Diameter 30.3" sidewall 6.64" 17" rim width 225 mm (8.9")
225/75R17: 225 mm wide, sidewall 75% of the width (6.64"), on a 17" rim → 30.29" tall.

225/75R17 specs

Overall diameter (height)30.29" · 769 mm
Section width8.86" · 225 mm
Sidewall height6.64" · 169 mm (75% of width)
Rim diameter17"
Circumference95.15" · 2.417 m
Revolutions per mile666 (414 per km)
Inch (flotation) equivalent30.5x9.00R17

Equivalent sizes on a 17" 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
265/70R17 common31.61"+4.35%+40 mm62.6 mphcompare →
235/65R17 common29.03"-4.16%+10 mm57.5 mphcompare →
245/70R17 common30.50"+0.71%+20 mm60.4 mphcompare →
245/65R17 common29.54"-2.47%+20 mm58.5 mphcompare →
245/75R17 common31.47"+3.90%+20 mm62.3 mphcompare →
265/65R17 common30.56"+0.91%+40 mm60.5 mphcompare →
255/65R17 common30.05"-0.78%+30 mm59.5 mphcompare →
255/70R17 common31.06"+2.53%+30 mm61.5 mphcompare →
235/75R1730.88"+1.95%+10 mm61.2 mphcompare →
235/70R1729.95"-1.10%+10 mm59.3 mphcompare →
255/60R1729.05"-4.09%+30 mm57.5 mphcompare →
275/55R1728.91"-4.55%+50 mm57.3 mphcompare →
275/60R1729.99"-0.97%+50 mm59.4 mphcalculate →
265/60R1729.52"-2.53%+40 mm58.5 mphcalculate →
275/65R1731.07"+2.60%+50 mm61.6 mphcalculate →
285/65R1731.59"+4.29%+60 mm62.6 mphcalculate →
215/70R1728.85"-4.74%-10 mm57.2 mphcalculate →
315/55R1730.64"+1.17%+90 mm60.7 mphcalculate →
31x10.50R1731.00"+2.35%+42 mm61.4 mphcalculate →
175/90R1729.40"-2.92%-50 mm58.2 mphcalculate →
285/60R1730.46"+0.58%+60 mm60.4 mphcalculate →
225/70R1729.40"-2.92%0 mm58.2 mphcalculate →

Plus / minus sizing: 16" and 18" rims

Same overall height on a different rim. Check wheel width and clearance before switching.

SizeDiameterDifferenceWidthSpeedo at 60
265/60R18 common30.52"+0.77%+40 mm60.5 mphcompare →
245/75R16 common30.47"+0.60%+20 mm60.4 mphcompare →
235/65R18 common30.03"-0.86%+10 mm59.5 mphcompare →
215/85R16 common30.39"+0.34%-10 mm60.2 mphcompare →
255/70R16 common30.06"-0.77%+30 mm59.5 mphcompare →
255/60R1830.05"-0.79%+30 mm59.5 mphcompare →
285/65R1630.59"+0.99%+60 mm60.6 mphcalculate →
285/55R1830.34"+0.18%+60 mm60.1 mphcalculate →
175/90R1830.40"+0.38%-50 mm60.2 mphcalculate →
245/65R1830.54"+0.83%+20 mm60.5 mphcalculate →
30x11.50R1630.00"-0.95%+67 mm59.4 mphcalculate →

Try another size against 225/75R17

Questions

What size is 225/75R17 in inches?

225/75R17 is about 30.3" tall and 8.9" wide on a 17-inch rim — roughly a 30.5x9.00R17 in inch sizing.

What does 225/75R17 mean?

225 mm section width, sidewall 75% of the width (6.64"), radial construction, 17-inch rim.

What tire sizes are equivalent to 225/75R17?

On the same 17" rim, within 3% of the diameter: 285/60R17 (+0.58%), 245/70R17 (+0.71%), 255/65R17 (-0.78%), 265/65R17 (+0.91%), 275/60R17 (-0.97%), 235/70R17 (-1.10%).

How many revolutions per mile does a 225/75R17 tire make?

About 666 revolutions per mile (circumference 95.2").

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.