175/70R15 tire size
A 175/70R15 tire is 24.65 inches (626.0 mm) tall, 6.89 in (175 mm) wide and fits a 15-inch wheel. In inch notation it is roughly a 24.6x6.9R15.
| Overall diameter | 24.65 in | 626.0 mm |
|---|---|---|
| Section width | 6.89 in | 175 mm |
| Sidewall height | 4.82 in | 122.5 mm |
| Circumference | 77.43 in | 1,967 mm |
| Revolutions | 818.3 per mile | 508.5 per km |
| Rim diameter | 15 in | 381.0 mm |
Compare 175/70R15 with another size
Alternative sizes on the same 15-inch wheel
Sizes in use within ±3 % of the overall diameter of 175/70R15:
Plus and minus sizes for 175/70R15
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 195/70R14 | Minus 1 (14 in) | 24.75 in | +0.42% |
| 165/80R14 | Minus 1 (14 in) | 24.39 in | −1.02% |
| 185/75R14 | Minus 1 (14 in) | 24.93 in | +1.13% |
| 175/80R14 | Minus 1 (14 in) | 25.02 in | +1.53% |
| 185/60R16 | Plus 1 (16 in) | 24.74 in | +0.38% |
| 215/50R16 | Plus 1 (16 in) | 24.46 in | −0.73% |
| 195/55R16 | Plus 1 (16 in) | 24.44 in | −0.81% |
| 225/50R16 | Plus 1 (16 in) | 24.86 in | +0.86% |
| 215/45R17 | Plus 2 (17 in) | 24.62 in | −0.11% |
| 175/55R17 | Plus 2 (17 in) | 24.58 in | −0.27% |
| 225/45R17 | Plus 2 (17 in) | 24.97 in | +1.33% |
| 185/50R17 | Plus 2 (17 in) | 24.28 in | −1.47% |
| 215/40R18 | Plus 3 (18 in) | 24.77 in | +0.51% |
| 205/40R18 | Plus 3 (18 in) | 24.46 in | −0.77% |
| 225/40R18 | Plus 3 (18 in) | 25.09 in | +1.79% |
| 225/35R18 | Plus 3 (18 in) | 24.20 in | −1.81% |
Vehicles approved with 175/70R15 tires
Models whose Swiss type approval lists 175/70R15 as a standard or optional size (3 approvals in total). Always check your own vehicle's placard or papers.
Source: Swiss Federal Roads Office (FEDRO/ASTRA), open government data. Original data (downloaded 2026-09-29). Data processed by us; errors in processing are ours, not the publisher's.
Nearby 15-inch sizes
Reading the 175/70R15 size
- 175 — section width in millimetres (6.89 in).
- 70 — aspect ratio: the sidewall is 70 % of the width, 122.5 mm.
- R — radial construction (ZR on the sidewall means a high-speed rated radial; the dimensions are the same).
- 15 — fits a 15-inch diameter wheel.
The load index and speed rating (for example 91V) follow the size on the sidewall. They must meet at least the values on your vehicle's tire placard.