295/30R20 in inches

A 295/30R20 tire is 27.0″ tall and 11.6″ wide, and fits a 20″ wheel. In inches it is written 27.0×11.6R20.

Diameter26.97″

Width11.61″

Sidewall3.48″

Drawn to scale. Nominal dimensions calculated from the size code.

Manufacturer data

How tall 295/30R20 tires really are

Heights published by Michelin and Toyo for all 17 tires in this size. Their published revolutions per mile work out to 26.2″ under load (below).

Real 295/30R20 tires measure 27.00–27.01″, against 26.97″ from the size code. Every one runs taller than the size code.

Height under load26.2″

Published revs per mile (769–770) mean the tire rolls like a 26.2″ tire on the vehicle. Use this for speedometer calibration.

Weight spread27.0–31.1 lb

The lightest (Michelin Pilot Alpin 5, XL) is 4.1 lb lighter per corner than the heaviest (Toyo Proxes Sport A/S, XL).

17 tires in 295/30R20

Sort by the spec you care about.

	Load					Revs/mi	Source
Michelin Pilot Alpin 5Winter	XL · 101V	27.01	27.0	9.5	1,819	770	Spec page
Michelin Pilot Sport Cup 2 RPerformance	XL · 101(Y)	27.00	27.3	5.5	1,819	770	Spec page
Michelin Pilot Sport Cup 2 RPerformance	XL · 101(Y)	27.00	27.9	5.5	1,819	770	Spec page
Michelin Pilot Sport S 5Performance	XL · 101(Y)	27.00	28.6	9.0	1,819	770	Spec page
Michelin Pilot Sport Cup 2Performance	XL · 101(Y)	27.00	28.8	7.2	1,819	770	Spec page
Michelin Pilot Sport All-Season 4Performance	XL · 101Y	27.00	28.9	10.0	1,819	770	Spec page
Michelin Pilot Sport 4 SPerformance	XL · 101(Y)	27.00	29.0	9.5	1,819	770	Spec page
Michelin Pilot Sport 4 SPerformance	XL · 101(Y)	27.00	29.0	9.5	1,819	770	Spec page
Michelin Pilot Sport 4 SPerformance	XL · 101(Y)	27.00	29.1	9.5	1,819	770	Spec page
Michelin Pilot Sport Cup 2Performance	XL · 101(Y)	27.00	29.1	7.2	1,819	770	Spec page
Michelin Pilot Sport Cup 2 ConnectPerformance	XL · 101(Y)	27.00	29.1	7.2	1,819	770	Spec page
Michelin Pilot Sport Cup 2 ConnectPerformance	XL · 101(Y)	27.00	29.2	7.2	1,819	770	Spec page
Michelin Pilot Super SportPerformance	XL · 101(Y)	27.00	29.2	10.0	1,819	770	Spec page
Toyo Proxes Sport 2Performance	XL · 101(Y)	27.01	29.5	9.2	1,819	769	Spec page
Michelin Pilot Super SportPerformance	XL · 101(Y)	27.00	29.8	9.0	1,819	770	Spec page
Michelin Pilot Alpin PA4Winter	XL · 101V	27.01	31.0	10.5	1,819	770	Spec page
Toyo Proxes Sport A/SPerformance	XL · 101Y	27.01	31.1	9.6	1,819	769	Spec page

Is 295/30R20 a 27-inch tire?

≈27″

Yes. The size code works out to 26.97″, and the 17 tires here publish 27.00–27.01″, so people call it a 27.

All 27-inch tire sizes, on every wheel size.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

Size	Diameter ″	vs 295/30R20	Difference
275/30R20	26.50	-0.47″	-1.8%
335/25R20	26.59	-0.37″	-1.4%
285/30R20	26.73	-0.24″	-0.9%
245/35R20	26.75	-0.22″	-0.8%
255/35R20	27.03	+0.06″	+0.2%
225/40R20	27.09	+0.12″	+0.4%
305/30R20	27.20	+0.24″	+0.9%
265/35R20	27.30	+0.33″	+1.2%
235/40R20	27.40	+0.43″	+1.6%
315/30R20	27.44	+0.47″	+1.8%

How to read 295/30R20

How to read any tire size

How 295/30R20 101Y is printed on the sidewall. It's the most common code among the 17 tires here (13 of them); tires in this size come in other load and speed ratings too.

1295Section width

295 mm across the widest point, or 11.61 inches. Every 295 size

230Aspect ratio

A percentage, not a measurement: the sidewall is 30% as tall as the tire is wide, which is 88.5 mm or 3.48 inches.

3RConstruction

Radial construction.

420Wheel diameter

Mounts on a 20-inch wheel. Approved wheel widths run 10.0″ to 11.0″.

5101Load index

Each tire carries up to 1,819 lb (825 kg) at its maximum pressure.

6YSpeed rating

Rated for up to 186 mph sustained.

XLExtra load

Printed after the size.

Specification	Inches	Metric
Overall diameter	26.97	685 mm
Section width	11.61	295 mm
Sidewall height	3.48	88.5 mm
Circumference	84.7	2,152 mm
Revolutions per mile (calculated, unloaded)	747.8	465 per km
Revolutions per mile (published by manufacturers)	769–770	478 per km
Approved wheel width	10.0–11.0	254–279 mm

Speedometer error after switching to 295/30R20

Your actual speed– mph

Questions about 295/30R20

What is 295/30R20 in inches?

26.97 inches tall, 11.61 inches wide, on a 20-inch wheel. Written in inches, that is roughly 27.0×11.6R20.

How much does a 295/30R20 tire weigh?

Between 27.0 lb and 31.1 lb for the 17 tires listed here. The lightest is the Michelin Pilot Alpin 5 (XL); the heaviest is the Toyo Proxes Sport A/S (XL).

What wheel width do I need for 295/30R20?

Manufacturers approve 10.0–11.0″ wide wheels for this size.

How many revolutions per mile does a 295/30R20 make?

Published figures run 769–770 revolutions per mile. The calculated figure is 747.8, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 295/30R20 than 245/35R20?

0.22 inches taller on paper (26.97″ vs 26.75″), which raises the axle about 0.11″. Your speedometer will read about 0.8% slow.