175/65 R14 Tyre Size — Meaning, Fitment & Alternatives
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What 175/65 R14 means
175/65 R14 is a 175 mm wide tyre with a sidewall 65% of that width (114 mm), on a 14-inch rim. Overall diameter works out at about 583 mm (23.0 in). It typically fits superminis and small hatchbacks such as older Fiestas, the Toyota Aygo class and small city crossovers.
UK: check prices for 175/65 R14 tyres at Tirendo US: check 175/65 R14 prices at WheelHero
175/65 R14 broken down
| Code part | Value | Meaning |
|---|---|---|
| Width | 175 | Section width in millimetres, sidewall to sidewall |
| Profile (aspect ratio) | 65 | Sidewall height as a percentage of width — 114 mm here |
| R | Radial | Radial construction (standard on modern car tyres) |
| Rim | 14 | Wheel diameter in inches (356 mm) |
Computed dimensions
| Measure | Value |
|---|---|
| Overall diameter | 583 mm (23.0 in) |
| Circumference | 1832 mm (72.1 in) |
| Sidewall height | 114 mm |
| Revolutions per mile | ≈ 879 |
| Revolutions per km | ≈ 546 |
These are computed reference values from the size code arithmetic — actual measurements vary slightly by brand and model. Working in different units? Convert mm to inches with the unit converters at 247QuickTools.
Tyre Owner Essentials
Typical vehicles
This is classic supermini territory. Cars in this class prioritise economy, so energy-efficient tyre models are widely stocked in this size. To confirm the exact original-equipment sizes for your car, look up your car's full specs, including OE tyre sizes, at 247VehicleCheck.
Checking your current tread? Owners often keep a tread depth gauge in the glovebox — UK legal minimum is 1.6 mm across the central three-quarters of the tread.
Speed and load ratings commonly sold in 175/65 R14
This size is commonly sold in T (118 mph) and H (130 mph) ratings — more than adequate headroom for the cars that use it. See the full speed rating table and load index table for what each code is rated to.
Alternative & equivalent sizes (±3% diameter)
Sizes within ±3% of this tyre's 583 mm overall diameter keep your speedometer and gearing close to accurate. Always check clearance, rim width compatibility and load rating before switching, and never mix constructions across an axle.
| Alternative size | Overall diameter | Difference |
|---|---|---|
| 185/55 R15 | 584 mm | +0.2% |
| 195/45 R16 | 582 mm | -0.2% |
| 165/70 R14 | 587 mm | +0.6% |
| 165/60 R15 | 579 mm | -0.7% |
| 155/80 R13 | 578 mm | -0.8% |
| 185/60 R14 | 578 mm | -0.9% |
| 185/70 R13 | 589 mm | +1.0% |
| 195/60 R14 | 590 mm | +1.1% |
| 195/50 R15 | 576 mm | -1.2% |
| 205/45 R16 | 591 mm | +1.3% |
Tyre pressure for 175/65 R14
Correct pressure depends on your vehicle and load, not on the tyre size alone — always follow the placard inside the driver's door or the handbook. Typical car pressures fall between 30 and 36 psi. For psi-to-bar maths, the calculators at 247Calculators can help. A monthly check with an accurate gauge catches slow leaks before they wear the shoulders.
Recommended Accessories
FAQ
What does 175/65 R14 mean?
175/65 R14 means the tyre is 175 mm wide, its sidewall is 65% of that width (114 mm), and it fits a 14-inch wheel. The R stands for radial construction.
What is the overall diameter of a 175/65 R14 tyre?
About 583 mm (23.0 inches), computed from the size code: 14-inch rim plus two sidewalls of 114 mm. Actual measurements vary slightly by brand.
Can I fit a different size instead of 175/65 R14?
Only if the alternative stays within about ±3%% of the original overall diameter, fits your rim width, clears the bodywork and meets the placard's load and speed ratings. When in doubt, keep the placard size.
What pressure should 175/65 R14 tyres run at?
Pressure is set by the vehicle, not the tyre size — check the placard inside the driver's door or your handbook. Typical car values fall between 30 and 36 psi.
Related pages on this site
Last updated:
Data: computed reference values (ETRTO tyre-size arithmetic), build date 22 July 2026. Reference only — always follow your vehicle manufacturer's placard or handbook.