175/65R14 Tyre Size — Dimensions & Alternatives
Dimensions for 175/65R14 tires. Very common small car tire size.
175/65R14 dimensions
| Section width | 175mm |
| Aspect ratio | 65% |
| Sidewall height | 114mm (4.49in) |
| Rim diameter | 14" (355.6mm) |
| Overall diameter | 584mm (22.99in) |
| Circumference | 1835mm |
| Revs per km | 545 |
What does 175/65R14 mean?
The tyre designation 175/65R14 breaks down into three parts: the section width (175mm — how wide the tread is), the aspect ratio (65% — sidewall height as a percentage of width), and the rim diameter (14 inches). The "R" indicates radial construction, which is standard on nearly every passenger vehicle today.
Can I fit an alternative size?
Yes — tyres with a slightly different section width, aspect ratio or rim size can often be fitted safely provided the overall diameter stays within about 3% of the original. Going wider improves grip but increases rolling resistance; going narrower reduces road noise and fuel consumption. The lookup tool below shows compatible alternative sizes for 175/65R14.
Speedometer error
Changing tyre size affects your speedometer reading. A larger overall diameter means the speedometer under-reads (you're actually going faster than the needle shows); a smaller diameter means it over-reads. Stay within 3% to keep the error under the legal tolerance in Australia and New Zealand.
