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30×10.00R15 in inches

A 30×10.00R15 tire is 30.0″ tall and 10.0″ wide, and fits a 15″ wheel.

Diameter30.00″
Width10.00″
Sidewall7.50″
30×10.00R15 drawn to scale: 30.00 inch diameter, 7.50 inch sidewall, 15 inch wheel, 10.00 inch tread width15″ wheel7.50″30.00″ overall10.00″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 30×10.00R15 tires really are

Heights published by BFGoodrich for the one tire in this size. Their published revolutions per mile work out to 29.1″ under load (below).

The one tire listed, the BFGoodrich Mud-Terrain T/A KM3 UTV, measures 30.00″: 0.00″ taller than the size code's 30.00″.

Height under load29.1″

Published revs per mile (693) mean the tire rolls like a 29.1″ tire on the vehicle. Use this for speedometer calibration.

1 tire in 30×10.00R15

Sort by the spec you care about.

LoadRevs/miSource
BFGoodrich Mud-Terrain T/A KM3 UTVMud-terrainSL · Q30.0039.718.01,694693Spec page

Is a 30×10.00R15 really 30 inches tall?

30.0″

Yes. The name says 30″, and the 1 tire here publishes 30.00″.

All 30-inch tire sizes, on every wheel size.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 30×10.00R15Difference
235/75R1528.88-1.12″-3.7%
255/70R1529.06-0.94″-3.1%
265/70R1529.61-0.39″-1.3%
235/75R1629.88-0.12″-0.4%
30×9.50R1530.000.00″0.0%
30×10.00R1430.000.00″0.0%
255/70R1630.06+0.06″+0.2%
215/85R1630.39+0.39″+1.3%
265/75R1530.65+0.65″+2.2%
31×10.50R1531.00+1.00″+3.3%

How to read 30×10.00R15

How to read any tire size

30X10.00R15 Q as printed on the tire sidewall, with each part numbered30X10.00R15 Q12345
How 30X10.00R15 Q 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.
130Overall diameter

30 inches tall, measured on the approved wheel. Flotation sizes give every number in inches.

210.00Section width

10.00 inches across the widest point, or 254 mm.

3RConstruction

Radial construction.

415Wheel diameter

Mounts on a 15-inch wheel. Approved wheel widths run 6.0″ to 8.5″.

5QSpeed rating

Rated for up to 99 mph sustained.

SpecificationInchesMetric
Overall diameter30.00762 mm
Section width10.00254 mm
Sidewall height7.50190.5 mm
Circumference94.22,394 mm
Revolutions per mile (calculated, unloaded)672.3418 per km
Revolutions per mile (published by manufacturers)693431 per km
Approved wheel width6.0–8.5152–216 mm

Speedometer error after switching to 30×10.00R15

Your actual speed– mph

Questions about 30×10.00R15

What is 30×10.00R15 in inches?

30.00 inches tall, 10.00 inches wide, on a 15-inch wheel. Manufacturers publish 30.00 inches for the 1 tires listed here.

What wheel width do I need for 30×10.00R15?

Manufacturers approve 6.0–8.5″ wide wheels for this size.

How many revolutions per mile does a 30×10.00R15 make?

Published figures run 693 revolutions per mile. The calculated figure is 672.3, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 30×10.00R15 than 265/70R15?

0.39 inches taller on paper (30.00″ vs 29.61″), which raises the axle about 0.20″. Your speedometer will read about 1.3% slow.