195/75R14 Tire Size in Inches

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

195/75R14
25.5" tall × 7.7" wide
On a 14-inch wheel · roughly 25.5x7.7R14 in flotation sizing
MeasurementInchesMillimetres
Overall diameter25.52648
Section width7.68195
Sidewall height5.76146.2
Wheel diameter14356
Circumference80.22036
Revolutions per mile790 (491 per km)

What 195/75R14 means

195 is the section width in millimetres (7.7 in). 75 is the aspect ratio: the sidewall is 75% as tall as the tire is wide, which works out to 146.2 mm or 5.8 in. R14 is a radial tire for a 14-inch wheel.

Overall diameter is the wheel plus two sidewalls: 14 + 2 × 5.76 = 25.5 inches. These are the nominal dimensions every maker builds to; a real 195/75R14 can measure a few tenths of an inch differently by model and inflation.

Closest equivalent sizes

Common sizes within the usual 3% of 195/75R14's overall diameter. Confirm load index, speed rating and rim width before swapping.

SizeDiameterWidthChangeSpeedometer at 60
205/65R15 new wheels 25.5 in 8.1 in -0.1% really 59.9 mph
235/35R19 new wheels 25.5 in 9.3 in -0.2% really 59.9 mph
215/50R17 new wheels 25.5 in 8.5 in -0.2% really 59.9 mph
215/45R18 new wheels 25.6 in 8.5 in +0.4% really 60.2 mph
235/40R18 new wheels 25.4 in 9.3 in -0.4% really 59.7 mph
225/60R15 new wheels 25.6 in 8.9 in +0.4% really 60.3 mph

Speedometer if you switch to 205/65R15

Your speedometer stays calibrated for 195/75R14. With a shorter tire you travel slower than it shows.

Speedometer readsTrue speed
30 mph30.0 mph
45 mph45.0 mph
55 mph54.9 mph
65 mph64.9 mph
75 mph74.9 mph
Compare 195/75R14 with any size →

Shop 195/75R14 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 195/75R14 tire is 25.5 inches (648 mm) tall overall. That is the 14-inch wheel plus two sidewalls of 5.8 inches each (75% of the 195 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 195 mm, or 7.7 inches, measured sidewall to sidewall on the recommended rim width. The tread itself is narrower than that. In flotation sizing, 195/75R14 is roughly a 25.5x7.7R14.

205/65R15 is the closest common size, at -0.1% overall diameter (25.5 in against 25.5 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 790 revolutions per mile (491 per kilometre), from its 25.5-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 205/70R14 205/75R14 215/75R14