tireheight.com

275/60R20 in inches

A 275/60R20 tire is 33.0″ tall and 10.8″ wide, and fits a 20″ wheel. In inches it is written 33.0×10.8R20.

Diameter32.99″
Width10.83″
Sidewall6.50″
275/60R20 drawn to scale: 32.99 inch diameter, 6.50 inch sidewall, 20 inch wheel, 10.83 inch tread width20″ wheel6.50″32.99″ overall10.83″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 275/60R20 tires really are

Heights published by BFGoodrich, General, Michelin, Mickey Thompson and Toyo for all 30 tires in this size. Their published revolutions per mile work out to 31.0–32.0″ under load (below).

Real 275/60R20 tires measure 32.90–33.40″, against 32.99″ from the size code. They run both taller and shorter than the size code.

  1. Mickey Thompson Baja Boss A/T · 233.40″ +0.41″
  2. BFGoodrich All-Terrain T/A KO333.00″ +0.01″
  3. BFGoodrich Trail-Terrain T/A · 233.00″ +0.01″
  4. BFGoodrich Trail-Terrain T/A+33.00″ +0.01″
  5. General Grabber A/TX · 233.00″ +0.01″
  6. General Grabber APT33.00″ +0.01″
  7. General Grabber Arctic X33.00″ +0.01″
  8. General Grabber H/T33.00″ +0.01″
  9. General Grabber HTS60 · 233.00″ +0.01″
  10. Michelin Defender LTX M/S 233.00″ +0.01″
  11. Michelin LTX A/T233.00″ +0.01″
  12. Toyo Proxes G-Tour33.00″ +0.01″
  13. Toyo Open Country A/T III · 332.99–33.00″ +0.01″
  14. Toyo Observe G3-Ice32.99″ −0.00″
  15. Toyo Open Country H/T II · 232.99″ −0.00″
  16. Toyo OPEN COUNTRY Q/T32.99″ −0.00″
  17. Toyo Open Country R/T Trail32.99″ −0.00″
  18. BFGoodrich Advantage Control HT32.99″ −0.00″
  19. Michelin Pilot Alpin 532.99″ −0.00″
  20. Michelin X-Ice Snow32.99″ −0.00″
  21. Toyo Open Country A/T III EV · 232.99″ −0.00″
  22. Mickey Thompson Baja Legend EXP32.90″ −0.09″
Each bar runs from the size code's 32.99″ (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 load31.0–32.0″

Published revs per mile (630–651) mean the tire rolls like a 31.0–32.0″ tire on the vehicle. Use this for speedometer calibration.

Weight spread34.3–64.0 lb

The lightest (General Grabber HTS60, XL) is 29.7 lb lighter per corner than the heaviest (Mickey Thompson Baja Boss A/T, LT E).

30 tires in 275/60R20

Sort by the spec you care about.

LoadRevs/miSource
General Grabber HTS60TouringXL · 116T33.0034.310.02,756630Spec page
General Grabber HTS60TouringSL · 115S33.0036.411.02,679630Spec page
Michelin Pilot Alpin 5WinterXL · 116H32.9937.09.52,756630Spec page
Michelin Defender LTX M/S 2All-seasonXL · 116H33.0039.411.02,756630Spec page
Michelin X-Ice SnowWinterSL · 115T32.9939.710.52,679630Spec page
Toyo Open Country A/T III EVAll-terrainXL · 116T32.9942.313.52,756651Spec page
General Grabber Arctic XWinterXL · 116T33.0042.412.02,756630Spec page
Toyo Open Country A/T IIIAll-terrainSL · 115T32.9942.513.52,679630Spec page
Toyo Proxes G-TourXL · 116H33.0043.012.32,756630Spec page
General Grabber APTAll-terrainSL · 115T33.0043.214.02,679630Spec page
Toyo OPEN COUNTRY Q/TAll-seasonSL · 115T32.9943.313.02,679630Spec page
BFGoodrich Advantage Control HTHighwaySL · 115T32.9943.512.02,679630Spec page
Toyo Open Country R/T TrailRugged-terrainSL · 115T32.9943.713.52,679630Spec page
Toyo Open Country H/T IIHighwaySL · 115T32.9943.812.02,679630Spec page
General Grabber H/THighwaySL · 115H33.0044.012.02,679630Spec page
Michelin LTX A/T2All-terrainSL · 114S33.0044.014.02,365630Spec page
BFGoodrich Trail-Terrain T/AAll-terrainXL · 116H33.0044.412.52,756630Spec page
Toyo Open Country A/T IIIAll-terrainXL · 116H33.0045.813.52,756630Spec page
Toyo Observe G3-IceWinterSL · 115T32.9946.513.72,679630Spec page
Mickey Thompson Baja Boss A/TAll-terrainSL · 115T33.4047.016.02,679–Spec page
BFGoodrich Trail-Terrain T/AAll-terrainSL · 115T33.0047.912.52,679630Spec page
BFGoodrich Trail-Terrain T/A+XL · 116T33.0048.812.52,756630Spec page
General Grabber A/TXAll-terrainXL · 116T33.0049.014.02,756630Spec page
Toyo Open Country A/T III EVAll-terrainLT E · 123/120S32.9952.916.43,415630Spec page
General Grabber A/TXAll-terrainLT D · 119S33.0053.816.02,998630Spec page
Toyo Open Country H/T IIHighwayLT E · 123/120R32.9954.714.43,415630Spec page
Toyo Open Country A/T IIIAll-terrainLT E · 123/120T32.9955.416.43,415630Spec page
BFGoodrich All-Terrain T/A KO3All-terrainLT D · 119S33.0058.215.03,000630Spec page
Mickey Thompson Baja Legend EXPAll-terrainLT E · 123Q32.9059.018.53,415–Spec page
Mickey Thompson Baja Boss A/TAll-terrainLT E · 123Q33.4064.018.53,415–Spec page

Is 275/60R20 a 33-inch tire?

≈33″

Yes. The size code works out to 32.99″, and the 30 tires here publish 32.90–33.40″, so people call it a 33.

All 33-inch tire sizes, on every wheel size.

A true 33×11.50R20 is 0.01″ taller on paper and 0.7″ wider.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 275/60R20Difference
255/60R2032.05-0.94″-2.9%
285/55R2032.34-0.65″-2.0%
265/60R2032.52-0.47″-1.4%
295/55R2032.78-0.22″-0.7%
275/55R2132.91-0.08″-0.3%
33×11.50R2033.00+0.01″+0.0%
33×12.50R2033.00+0.01″+0.0%
33×13.50R2033.00+0.01″+0.0%
305/55R2033.21+0.22″+0.7%
285/60R2033.46+0.47″+1.4%

How to read 275/60R20

How to read any tire size

275/60R20 115T as printed on the tire sidewall, with each part numbered275/60R20 115T123456
How 275/60R20 115T is printed on the sidewall. It's the most common code among the 30 tires here (10 of them); tires in this size come in other load and speed ratings too.
1275Section width

275 mm across the widest point, or 10.83 inches. Every 275 size

260Aspect ratio

A percentage, not a measurement: the sidewall is 60% as tall as the tire is wide, which is 165.0 mm or 6.50 inches.

3RConstruction

Radial construction.

420Wheel diameter

Mounts on a 20-inch wheel. Approved wheel widths run 7.5″ to 9.5″.

5115Load index

Each tire carries up to 2,679 lb (1,215 kg) at its maximum pressure.

6TSpeed rating

Rated for up to 118 mph sustained.

SpecificationInchesMetric
Overall diameter32.99838 mm
Section width10.83275 mm
Sidewall height6.50165.0 mm
Circumference103.62,633 mm
Revolutions per mile (calculated, unloaded)611.3380 per km
Revolutions per mile (published by manufacturers)630–651391–405 per km
Approved wheel width7.5–9.5191–241 mm

Speedometer error after switching to 275/60R20

Your actual speed– mph

Questions about 275/60R20

What is 275/60R20 in inches?

32.99 inches tall, 10.83 inches wide, on a 20-inch wheel. Written in inches, that is roughly 33.0×10.8R20.

How much does a 275/60R20 tire weigh?

Between 34.3 lb and 64.0 lb for the 30 tires listed here. The lightest is the General Grabber HTS60 (XL); the heaviest is the Mickey Thompson Baja Boss A/T (LT E).

What wheel width do I need for 275/60R20?

Manufacturers approve 7.5–9.5″ wide wheels for this size.

How many revolutions per mile does a 275/60R20 make?

Published figures run 630–651 revolutions per mile. The calculated figure is 611.3, but manufacturers measure the tire under load, where it rolls on a smaller radius.

What is the difference between P275/60R20 and LT275/60R20?

Passenger tires (23 here) are built for passenger loads, with max loads of 2365–2756 lb. Light-truck tires (7 here) come in heavier load ranges with max loads of 2998–3415 lb, and are usually heavier with deeper tread.

How much taller is 275/60R20 than 295/55R20?

0.22 inches taller on paper (32.99″ vs 32.78″), which raises the axle about 0.11″. Your speedometer will read about 0.7% slow.