145/70R13 tire size
A 145/70R13 tire is 20.99 inches (533.2 mm) tall, 5.71 in (145 mm) wide and fits a 13-inch wheel. In inch notation it is roughly a 21.0x5.7R13.
| Overall diameter | 20.99 in | 533.2 mm |
|---|---|---|
| Section width | 5.71 in | 145 mm |
| Sidewall height | 4.00 in | 101.5 mm |
| Circumference | 65.95 in | 1,675 mm |
| Revolutions | 960.7 per mile | 597.0 per km |
| Rim diameter | 13 in | 330.2 mm |
Compare 145/70R13 with another size
Alternative sizes on the same 13-inch wheel
Sizes in use within ±3 % of the overall diameter of 145/70R13:
Plus and minus sizes for 145/70R13
Vehicles approved with 145/70R13 tires
Models whose Swiss type approval lists 145/70R13 as a standard or optional size (37 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 13-inch sizes
Reading the 145/70R13 size
- 145 — section width in millimetres (5.71 in).
- 70 — aspect ratio: the sidewall is 70 % of the width, 101.5 mm.
- R — radial construction (ZR on the sidewall means a high-speed rated radial; the dimensions are the same).
- 13 — fits a 13-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.