165/70R14 Tire Size
165/70R14 diameter, sidewall, revolutions per mile, and plus-sizing options.
The 165/70R14 tire size breaks down as: 165 mm section width, 70% aspect ratio, and a 14-inch rim. Below are its real, calculated dimensions.
165/70R14 Calculated Dimensions
| Metric | Value |
|---|---|
| Overall diameter | 23.1 in (587 mm) |
| Sidewall height | 4.5 in (115 mm) |
| Circumference | 72.6 in (1843 mm) |
| Revolutions per mile | 873 |
Typical Fitment
165/70R14 is most often found on subcompact and economy hatchbacks. Always confirm against the door-jamb placard or owner manual before fitting.
Plus-Sizing Alternatives
These sizes keep the overall diameter close to 165/70R14, so speedometer and gearing stay near stock:
| Size | Diameter | Diameter change |
|---|---|---|
| 175/65R14 | 22.96 in | -0.6% |
| 175/60R15 | 23.27 in | +0.8% |
| 185/50R16 | 23.28 in | +0.8% |
Speedometer Note
If you fit a 175/65R14 instead of 165/70R14, the diameter changes by -0.6%. A taller tire makes your speedometer read low — at a true 60 mph it would show roughly 60 mph. A shorter tire has the opposite effect, so the gauge reads high.
Use the tire calculator to compare 165/70R14 against any other size and see the exact diameter and speedometer difference.
Frequently Asked Questions
What does 165/70R14 mean?
165/70R14 means a 165 mm wide tire with a 70% sidewall aspect ratio mounted on a 14-inch rim. The aspect ratio is the sidewall height as a percentage of the width.
Can I plus-size from 165/70R14?
Yes, as long as the replacement keeps the overall diameter close to stock so the speedometer stays accurate. Common plus-size moves from 165/70R14 are 175/65R14, 175/60R15, 185/50R16.
Will 165/70R14 affect my speedometer?
Only if it differs in diameter from your original size. A taller tire reads low; a shorter tire reads high. Compare the two sizes with the calculator to find the percentage.