CarSpecsHQ

225/50R16 tire size

225/50R16 is a metric size: 24.9" tall, 8.9" wide, on a 16" rim — about a 25x9.00R16. The sidewall is 4.4" and the tire turns 811 times per mile.

Diameter 24.9" sidewall 4.43" 16" rim width 225 mm (8.9")
225/50R16: 225 mm wide, sidewall 50% of the width (4.43"), on a 16" rim → 24.86" tall.

225/50R16 specs

Overall diameter (height)24.86" · 631 mm
Section width8.86" · 225 mm
Sidewall height4.43" · 113 mm (50% of width)
Rim diameter16"
Circumference78.09" · 1.984 m
Revolutions per mile811 (504 per km)
Inch (flotation) equivalent25x9.00R16

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.

SizeDiameterDifferenceWidthSpeedo at 60
205/55R16 common24.88"+0.08%-20 mm60.0 mphcompare →
215/55R16 common25.31"+1.82%-10 mm61.1 mphcompare →
205/60R16 common25.69"+3.33%-20 mm62.0 mphcompare →
195/55R16 common24.44"-1.66%-30 mm59.0 mphcompare →
205/50R1624.07"-3.17%-20 mm58.1 mphcompare →
225/55R1625.74"+3.56%0 mm62.1 mphcompare →
195/50R1623.68"-4.75%-30 mm57.1 mphcompare →
185/55R1624.01"-3.41%-40 mm58.0 mphcompare →
245/45R1624.68"-0.71%+20 mm59.6 mphcompare →
245/50R1625.65"+3.17%+20 mm61.9 mphcompare →
195/60R1625.21"+1.43%-30 mm60.9 mphcalculate →
185/60R1624.74"-0.48%-40 mm59.7 mphcalculate →
215/45R1623.62"-4.99%-10 mm57.0 mphcalculate →
225/45R1623.97"-3.56%0 mm57.9 mphcalculate →
255/50R1626.04"+4.75%+30 mm62.9 mphcalculate →
275/45R1625.74"+3.56%+50 mm62.1 mphcalculate →
195/65R1625.98"+4.51%-30 mm62.7 mphcalculate →
175/60R1624.27"-2.38%-50 mm58.6 mphcalculate →
145/80R1625.13"+1.11%-80 mm60.7 mphcalculate →
215/50R1624.46"-1.58%-10 mm59.0 mphcalculate →
265/45R1625.39"+2.14%+40 mm61.3 mphcalculate →
315/40R1625.92"+4.28%+90 mm62.6 mphcalculate →
26x11.50R1626.00"+4.59%+67 mm62.8 mphcalculate →

Plus / minus sizing: 15" and 17" rims

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

SizeDiameterDifferenceWidthSpeedo at 60
225/45R17 common24.97"+0.46%0 mm60.3 mphcompare →
215/45R17 common24.62"-0.97%-10 mm59.4 mphcompare →
205/50R17 common25.07"+0.86%-20 mm60.5 mphcompare →
195/65R15 common24.98"+0.49%-30 mm60.3 mphcompare →
245/40R17 common24.72"-0.57%+20 mm59.7 mphcompare →
255/40R17 common25.03"+0.70%+30 mm60.4 mphcompare →
205/60R1524.69"-0.70%-20 mm59.6 mphcompare →
245/50R1524.65"-0.86%+20 mm59.5 mphcalculate →
155/80R1524.76"-0.38%-70 mm59.8 mphcalculate →
145/70R1724.99"+0.54%-80 mm60.3 mphcalculate →
225/55R1524.74"-0.46%0 mm59.7 mphcalculate →
175/70R1524.65"-0.86%-50 mm59.5 mphcalculate →

Try another size against 225/50R16

Questions

What size is 225/50R16 in inches?

225/50R16 is about 24.9" tall and 8.9" wide on a 16-inch rim — roughly a 25x9.00R16 in inch sizing.

What does 225/50R16 mean?

225 mm section width, sidewall 50% of the width (4.43"), radial construction, 16-inch rim.

What tire sizes are equivalent to 225/50R16?

On the same 16" rim, within 3% of the diameter: 205/55R16 (+0.08%), 185/60R16 (-0.48%), 245/45R16 (-0.71%), 145/80R16 (+1.11%), 195/60R16 (+1.43%), 215/50R16 (-1.58%).

How many revolutions per mile does a 225/50R16 tire make?

About 811 revolutions per mile (circumference 78.1").

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.