205/75R14 Tire Size in Inches

Diameter, width, sidewall and the closest equivalent sizes, computed from the size code.

205/75R14
26.1" tall × 8.1" wide
On a 14-inch wheel · roughly 26.1x8.1R14 in flotation sizing
MeasurementInchesMillimetres
Overall diameter26.11663
Section width8.07205
Sidewall height6.05153.8
Wheel diameter14356
Circumference82.02083
Revolutions per mile773 (480 per km)

What 205/75R14 means

205 is the section width in millimetres (8.1 in). 75 is the aspect ratio: the sidewall is 75% as tall as the tire is wide, which works out to 153.8 mm or 6.1 in. R14 is a radial tire for a 14-inch wheel.

Overall diameter is the wheel plus two sidewalls: 14 + 2 × 6.05 = 26.1 inches. These are the nominal dimensions every maker builds to; a real 205/75R14 can measure a few tenths of an inch differently by model and inflation.

Closest equivalent sizes

Common sizes within the usual 3% of 205/75R14's overall diameter. Confirm load index, speed rating and rim width before swapping.

SizeDiameterWidthChangeSpeedometer at 60
225/40R19 new wheels 26.1 in 8.9 in -0.1% really 60.0 mph
215/60R16 new wheels 26.2 in 8.5 in +0.2% really 60.1 mph
255/35R19 new wheels 26.0 in 10.0 in -0.3% really 59.8 mph
215/65R15 new wheels 26.0 in 8.5 in -0.4% really 59.8 mph
195/65R16 new wheels 26.0 in 7.7 in -0.5% really 59.7 mph
225/45R18 new wheels 26.0 in 8.9 in -0.5% really 59.7 mph

Speedometer if you switch to 225/40R19

Your speedometer stays calibrated for 205/75R14. With a shorter tire you travel slower than it shows.

Speedometer readsTrue speed
30 mph30.0 mph
45 mph45.0 mph
55 mph55.0 mph
65 mph65.0 mph
75 mph74.9 mph
Compare 205/75R14 with any size →

Shop 205/75R14 tires

Check the load index and speed rating on your door-jamb placard before you buy, especially for LT tires used for towing.

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Frequently Asked Questions

A 205/75R14 tire is 26.1 inches (663 mm) tall overall. That is the 14-inch wheel plus two sidewalls of 6.1 inches each (75% of the 205 mm section width). Expect a real tire to measure within a few tenths of an inch of this, depending on the model and inflation.

The section width is 205 mm, or 8.1 inches, measured sidewall to sidewall on the recommended rim width. The tread itself is narrower than that. In flotation sizing, 205/75R14 is roughly a 26.1x8.1R14.

225/40R19 is the closest common size, at -0.1% overall diameter (26.1 in against 26.1 in). Most makers treat about 3% as the limit for a swap without speedometer or clearance problems, but always confirm load index, speed rating and wheel width before changing size.

About 773 revolutions per mile (480 per kilometre), from its 26.1-inch rolling diameter. Real-world figures run slightly higher because a loaded tire squats. This number is what your speedometer and odometer are calibrated against.

Last updated: October 2, 2026

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Other 14-inch sizes

175/65R14 185/60R14 185/65R14 185/70R14 195/60R14 195/70R14 195/75R14 205/70R14 215/75R14