155/80R13 tire size

A 155/80R13 tire is 22.76 inches (578.2 mm) tall, 6.10 in (155 mm) wide and fits a 13-inch wheel. In inch notation it is roughly a 22.8x6.1R13.

155/80R13 dimensions
Overall diameter	22.76 in	578.2 mm
Section width	6.10 in	155 mm
Sidewall height	4.88 in	124.0 mm
Circumference	71.51 in	1,816 mm
Revolutions	886.0 per mile	550.5 per km
Rim diameter	13 in	330.2 mm

Compare 155/80R13 with another size

Current size

New size

Speed in mphkm/h

Overall diameter difference

−0.35%

60 mph on the speedometer = 59.8 mph actual

Within the ±3 % diameter range most tire fitters accept.

Ground clearance: −1.0 mm (−0.04 in)
Revolutions: 886 → 889 per mile

155/80R13 205/60R13

Side-by-side dimensions

	Current	New	Difference	%
Diameter	22.76 in	22.69 in	−0.08 in	−0.35%
Diameter	578.2 mm	576.2 mm	−2.0 mm	−0.35%
Width	6.10 in	8.07 in	+1.97 in	+32.26%
Width	155.0 mm	205.0 mm	+50.0 mm	+32.26%
Sidewall	4.88 in	4.84 in	−0.04 in	−0.81%
Sidewall	124.0 mm	123.0 mm	−1.0 mm	−0.81%
Circumference	71.51 in	71.27 in	−0.25 in	−0.35%
Revs per mile	886.0	889.0	+3.1	+0.35%

Speedometer error

Speedometer shows	Actual speed	Difference
20 mph	19.9 mph	−0.1 mph
30 mph	29.9 mph	−0.1 mph
40 mph	39.9 mph	−0.1 mph
50 mph	49.8 mph	−0.2 mph
60 mph	59.8 mph	−0.2 mph
70 mph	69.8 mph	−0.2 mph
80 mph	79.7 mph	−0.3 mph

Alternative sizes on the same 13-inch wheel

Sizes in use within ±3 % of the overall diameter of 155/80R13:

Plus and minus sizes for 155/80R13

Size	Wheel	Diameter	Difference
185/60R14	Plus 1 (14 in)	22.74 in	−0.10%
175/65R14	Plus 1 (14 in)	22.96 in	+0.85%
155/70R14	Plus 1 (14 in)	22.54 in	−0.97%
165/65R14	Plus 1 (14 in)	22.44 in	−1.40%
165/60R15	Plus 2 (15 in)	22.80 in	+0.14%
195/50R15	Plus 2 (15 in)	22.68 in	−0.38%
155/65R15	Plus 2 (15 in)	22.93 in	+0.74%
175/55R15	Plus 2 (15 in)	22.58 in	−0.81%
175/50R16	Plus 3 (16 in)	22.89 in	+0.55%
195/45R16	Plus 3 (16 in)	22.91 in	+0.64%
205/45R16	Plus 3 (16 in)	23.26 in	+2.20%
185/50R16	Plus 3 (16 in)	23.28 in	+2.28%

Vehicles approved with 155/80R13 tires

Models whose Swiss type approval lists 155/80R13 as a standard or optional size (214 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 155/80R13 size

155 — section width in millimetres (6.10 in).
80 — aspect ratio: the sidewall is 80 % of the width, 124.0 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.