tireheight.com

215/85R16 in inches

A 215/85R16 tire is 30.4″ tall and 8.5″ wide, and fits a 16″ wheel. In inches it is written 30.4×8.5R16.

Diameter30.39″
Width8.46″
Sidewall7.19″
215/85R16 drawn to scale: 30.39 inch diameter, 7.19 inch sidewall, 16 inch wheel, 8.46 inch tread width16″ wheel7.19″30.39″ overall8.46″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 215/85R16 tires really are

Heights published by BFGoodrich, General, Michelin and Toyo for all 10 tires in this size. Their published revolutions per mile work out to 29.5–29.8″ under load (below).

Real 215/85R16 tires measure 30.39–30.75″, against 30.39″ from the size code. They run both taller and shorter than the size code.

  1. Toyo M-5530.75″ +0.36″
  2. Toyo M16530.51″ +0.12″
  3. Toyo Open Country WLT130.43″ +0.04″
  4. General Grabber HD30.40″ +0.01″
  5. Michelin Agilis CrossClimate 230.40″ +0.01″
  6. Toyo Celsius Cargo30.39″ +0.00″
  7. Toyo Open Country A/T III30.39″ +0.00″
  8. Toyo Open Country C/T30.39″ +0.00″
  9. Toyo Open Country H/T II30.39″ +0.00″
  10. BFGoodrich HD Pro T/A30.39″ +0.00″
Each bar runs from the size code's 30.39″ (the orange line) to the model's published height. The track spans 1.0″. Where a model comes in several load ranges, the darker part shows its range of heights; the number after the name is how many versions it comes in.
Height under load29.5–29.8″

Published revs per mile (676–684) mean the tire rolls like a 29.5–29.8″ tire on the vehicle. Use this for speedometer calibration.

Weight spread37.1–46.1 lb

The lightest (BFGoodrich HD Pro T/A, LT E) is 9.0 lb lighter per corner than the heaviest (Toyo Open Country C/T, LT E).

10 tires in 215/85R16

Sort by the spec you care about.

LoadRevs/miSource
BFGoodrich HD Pro T/ACommercialLT E · 115/112R30.3937.113.02,680684Spec page
Toyo Open Country H/T IIHighwayLT E · 115/112S30.3938.314.22,680683Spec page
General Grabber HDCommercialLT E · 115R30.4038.914.02,680684Spec page
Toyo Open Country WLT1WinterLT E · 115/112Q30.4339.215.92,680683Spec page
Toyo Open Country A/T IIIAll-terrainLT E · 115/112Q30.3939.515.82,680683Spec page
Michelin Agilis CrossClimate 2CommercialLT E · 115/112R30.4041.814.02,680684Spec page
Toyo Celsius CargoLT E · 115/112Q30.3942.314.22,680683Spec page
Toyo M-55CommercialLT E · 115/112Q30.7543.017.02,680676Spec page
Toyo M165CommercialLT E · 115/112R30.5143.013.62,680681Spec page
Toyo Open Country C/TCommercialLT E · 115/112Q30.3946.117.02,680683Spec page

Is 215/85R16 a 30-inch tire?

≈30″

Close. The size code works out to 30.39″, and the 10 tires here publish 30.39–30.75″, so people call it a 30.

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

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 215/85R16Difference
245/70R1629.50-0.89″-2.9%
235/75R1629.88-0.51″-1.7%
255/70R1630.06-0.33″-1.1%
225/75R1730.29-0.10″-0.3%
245/75R1630.47+0.08″+0.3%
245/70R1730.50+0.11″+0.4%
265/65R1730.56+0.17″+0.6%
265/70R1630.61+0.22″+0.7%
265/75R1530.65+0.26″+0.9%
275/70R1631.16+0.77″+2.5%

How to read 215/85R16

How to read any tire size

LT215/85R16 115/112Q as printed on the tire sidewall, with each part numberedLT215/85R16 115/112Q1234567
How LT215/85R16 115/112Q is printed on the sidewall. It's the most common code among the 10 tires here (5 of them); tires in this size come in other load and speed ratings too.
1LTLight truck

Marks a light truck (LT) tire.

2215Section width

215 mm across the widest point, or 8.46 inches. Every 215 size

385Aspect ratio

A percentage, not a measurement: the sidewall is 85% as tall as the tire is wide, which is 182.8 mm or 7.19 inches.

4RConstruction

Radial construction.

516Wheel diameter

Mounts on a 16-inch wheel. Approved wheel widths run 5.5″ to 7.0″.

6115/112Load index

Each tire carries up to 2,679 lb (1,215 kg) on its own, or 2,469 lb (1,120 kg) each when paired on a dual rear axle.

7QSpeed rating

Rated for up to 99 mph sustained.

ELoad range

Printed separately as "LOAD RANGE E": a 10-ply rating, inflated up to 80 psi (standard load-range table). The load range E tires here carry up to 2,680 lb each, as published.

SpecificationInchesMetric
Overall diameter30.39772 mm
Section width8.46215 mm
Sidewall height7.19182.8 mm
Circumference95.52,425 mm
Revolutions per mile (calculated, unloaded)663.6412 per km
Revolutions per mile (published by manufacturers)676–684420–425 per km
Approved wheel width5.5–7.0140–178 mm

Speedometer error after switching to 215/85R16

Your actual speed– mph

Questions about 215/85R16

What is 215/85R16 in inches?

30.39 inches tall, 8.46 inches wide, on a 16-inch wheel. Written in inches, that is roughly 30.4×8.5R16.

How much does a 215/85R16 tire weigh?

Between 37.1 lb and 46.1 lb for the 10 tires listed here. The lightest is the BFGoodrich HD Pro T/A (LT E); the heaviest is the Toyo Open Country C/T (LT E).

What wheel width do I need for 215/85R16?

Manufacturers approve 5.5–7.0″ wide wheels for this size.

How many revolutions per mile does a 215/85R16 make?

Published figures run 676–684 revolutions per mile. The calculated figure is 663.6, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 215/85R16 than 255/70R16?

0.33 inches taller on paper (30.39″ vs 30.06″), which raises the axle about 0.17″. Your speedometer will read about 1.1% slow.