tireheight.com

195/70R15 in inches

A 195/70R15 tire is 25.7″ tall and 7.7″ wide, and fits a 15″ wheel. In inches it is written 25.7×7.7R15.

Diameter25.75″
Width7.68″
Sidewall5.37″
195/70R15 drawn to scale: 25.75 inch diameter, 5.37 inch sidewall, 15 inch wheel, 7.68 inch tread width15″ wheel5.37″25.75″ overall7.68″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 195/70R15 tires really are

Heights published by General for the one tire in this size. Their published revolutions per mile work out to 25.0″ under load (below).

The one tire listed, the General Grabber HD Van, measures 25.70″: 0.05″ shorter than the size code's 25.75″.

Height under load25.0″

Published revs per mile (807) mean the tire rolls like a 25.0″ tire on the vehicle. Use this for speedometer calibration.

1 tire in 195/70R15

Sort by the spec you care about.

LoadRevs/miSource
General Grabber HD VanCommercialLT D · 104R25.7025.314.01,985807Spec page

Is 195/70R15 a 26-inch tire?

≈26″

Yes. The size code works out to 25.75″, and the 1 tire here publishes 25.70″, so people call it a 26.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 195/70R15Difference
195/65R1524.98-0.77″-3.0%
215/60R1525.16-0.59″-2.3%
205/65R1525.49-0.26″-1.0%
225/60R1525.63-0.12″-0.5%
205/60R1625.69-0.06″-0.2%
225/55R1625.74-0.00″-0.0%
275/45R1625.74-0.00″-0.0%
215/65R1526.00+0.26″+1.0%
235/60R1526.10+0.35″+1.4%
205/70R1526.30+0.55″+2.1%

How to read 195/70R15

How to read any tire size

LT195/70R15 104R as printed on the tire sidewall, with each part numberedLT195/70R15 104R1234567
How LT195/70R15 104R is printed on the sidewall. It's the most common code among the 1 tire here; tires in this size come in other load and speed ratings too.
1LTLight truck

Marks a light truck (LT) tire.

2195Section width

195 mm across the widest point, or 7.68 inches. Every 195 size

370Aspect ratio

A percentage, not a measurement: the sidewall is 70% as tall as the tire is wide, which is 136.5 mm or 5.37 inches.

4RConstruction

Radial construction.

515Wheel diameter

Mounts on a 15-inch wheel. Approved wheel widths run 5.0″ to 6.0″.

6104Load index

Each tire carries up to 1,984 lb (900 kg) at its maximum pressure.

7RSpeed rating

Rated for up to 106 mph sustained.

DLoad range

Printed separately as "LOAD RANGE D": a 8-ply rating, inflated up to 65 psi (standard load-range table). The load range D tires here carry up to 1,985 lb each, as published.

SpecificationInchesMetric
Overall diameter25.75654 mm
Section width7.68195 mm
Sidewall height5.37136.5 mm
Circumference80.92,055 mm
Revolutions per mile (calculated, unloaded)783.3487 per km
Revolutions per mile (published by manufacturers)807501 per km
Approved wheel width5.0–6.0127–152 mm

Speedometer error after switching to 195/70R15

Your actual speed– mph

Questions about 195/70R15

What is 195/70R15 in inches?

25.75 inches tall, 7.68 inches wide, on a 15-inch wheel. Written in inches, that is roughly 25.7×7.7R15.

What wheel width do I need for 195/70R15?

Manufacturers approve 5.0–6.0″ wide wheels for this size.

How many revolutions per mile does a 195/70R15 make?

Published figures run 807 revolutions per mile. The calculated figure is 783.3, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 195/70R15 than 225/60R15?

0.12 inches taller on paper (25.75″ vs 25.63″), which raises the axle about 0.06″. Your speedometer will read about 0.5% slow.