tireheight.com

275/65R20 in inches

A 275/65R20 tire is 34.1″ tall and 10.8″ wide, and fits a 20″ wheel. In inches it is written 34.1×10.8R20.

Diameter34.07″
Width10.83″
Sidewall7.04″
275/65R20 drawn to scale: 34.07 inch diameter, 7.04 inch sidewall, 20 inch wheel, 10.83 inch tread width20″ wheel7.04″34.07″ overall10.83″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 275/65R20 tires really are

Heights published by BFGoodrich, General, Michelin, Mickey Thompson and Toyo for all 25 tires in this size. Their published revolutions per mile work out to 33.1–33.6″ under load (below).

Real 275/65R20 tires measure 34.09–34.70″, against 34.07″ from the size code. Most run taller than the size code (19 of 25).

  1. Mickey Thompson Baja Legend EXP34.70″ +0.63″
  2. Mickey Thompson Baja Boss A/T34.50″ +0.43″
  3. Mickey Thompson Baja Legend MTZ34.50″ +0.43″
  4. Toyo Open Country M/T34.47″ +0.40″
  5. Toyo Open Country WLT134.33″ +0.26″
  6. Toyo Open Country C/T34.33″ +0.26″
  7. BFGoodrich All-Terrain T/A KO3 · 234.10″ +0.03″
  8. BFGoodrich HD-Terrain T/A KT34.10″ +0.03″
  9. BFGoodrich Mud-Terrain T/A KM334.10″ +0.03″
  10. General Grabber A/TX34.10″ +0.03″
  11. General Grabber H/T34.10″ +0.03″
  12. Michelin Agilis CrossClimate 234.10″ +0.03″
  13. Michelin Defender LTX M/S 234.10″ +0.03″
  14. Michelin Defender LTX Platinum34.10″ +0.03″
  15. Michelin LTX A/T234.10″ +0.03″
  16. Toyo Open Country A/T III EV · 234.10″ +0.03″
  17. Toyo Open Country R/T Pro34.10″ +0.03″
  18. Toyo Celsius Cargo34.09″ +0.02″
  19. Toyo Open Country A/T III34.09″ +0.02″
  20. Toyo Open Country H/T II34.09″ +0.02″
  21. Toyo Open Country R/T Trail · 234.09–34.09″ +0.02″
  22. BFGoodrich HD Pro T/A34.09″ +0.02″
Each bar runs from the size code's 34.07″ (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 load33.1–33.6″

Published revs per mile (601–610) mean the tire rolls like a 33.1–33.6″ tire on the vehicle. Use this for speedometer calibration.

Weight spread42.1–67.3 lb

The lightest (Toyo Open Country A/T III EV, SL) is 25.2 lb lighter per corner than the heaviest (Toyo Open Country M/T, LT E).

25 tires in 275/65R20

Sort by the spec you care about.

LoadRevs/miSource
Toyo Open Country A/T III EVAll-terrainSL · 116H34.1042.113.52,756609Spec page
Michelin Defender LTX M/S 2All-seasonXL · 116H34.1042.211.02,756610Spec page
Toyo Open Country R/T TrailRugged-terrainSL · 116T34.0947.513.52,756609Spec page
Toyo Celsius CargoLT E · 126/123S34.0950.314.53,750609Spec page
Toyo Open Country WLT1WinterLT E · 126/123Q34.3353.416.53,750605Spec page
BFGoodrich HD Pro T/ACommercialLT E · 126/123R34.0953.713.03,750610Spec page
Toyo Open Country A/T IIIAll-terrainLT E · 126/123S34.0954.816.43,750609Spec page
Toyo Open Country A/T III EVAll-terrainLT E · 126/123S34.1055.116.43,750609Spec page
General Grabber H/THighwayLT E · 126S34.1055.414.03,750610Spec page
General Grabber A/TXAll-terrainLT E · 126S34.1056.516.03,750610Spec page
Toyo Open Country H/T IIHighwayLT E · 126/123S34.0956.614.53,750609Spec page
Toyo Open Country R/T TrailRugged-terrainLT E · 126/123S34.0956.816.43,750609Spec page
Michelin Agilis CrossClimate 2CommercialLT E · 126/123R34.1057.414.03,750610Spec page
Michelin LTX A/T2All-terrainLT E · 126/123R34.1057.814.03,750610Spec page
Michelin Defender LTX PlatinumAll-seasonLT E · 126S34.1058.914.03,750610Spec page
BFGoodrich All-Terrain T/A KO3All-terrainLT E · 126S34.1061.016.03,750610Spec page
Mickey Thompson Baja Legend EXPAll-terrainLT E · 126Q34.7061.018.53,750–Spec page
Mickey Thompson Baja Legend MTZMud-terrainLT E · 126Q34.5063.019.53,750–Spec page
BFGoodrich All-Terrain T/A KO3All-terrainLT E · 126S34.1063.515.03,750610Spec page
Toyo Open Country R/T ProRugged-terrainLT E · 126/123Q34.1064.117.13,750609Spec page
Toyo Open Country C/TCommercialLT E · 126/123Q34.3364.718.43,750605Spec page
Mickey Thompson Baja Boss A/TAll-terrainLT E · 126Q34.5065.018.53,750–Spec page
BFGoodrich HD-Terrain T/A KTLT E · 126Q34.1065.818.03,750610Spec page
BFGoodrich Mud-Terrain T/A KM3Mud-terrainLT E · 126Q34.1066.518.03,750610Spec page
Toyo Open Country M/TMud-terrainLT E · 126P34.4767.319.13,750601Spec page

Is 275/65R20 a 34-inch tire?

≈34″

Yes. The size code works out to 34.07″, and the 25 tires here publish 34.09–34.70″, so people call it a 34.

All 34-inch tire sizes, on every wheel size.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 275/65R20Difference
305/55R2033.21-0.87″-2.5%
285/60R2033.46-0.61″-1.8%
295/60R2033.94-0.14″-0.4%
285/65R2034.59+0.51″+1.5%
265/70R2034.61+0.53″+1.6%
315/60R2034.88+0.81″+2.4%
35×11.50R2035.00+0.93″+2.7%
35×12.50R2035.00+0.93″+2.7%
35×13.50R2035.00+0.93″+2.7%
35×15.50R2035.00+0.93″+2.7%

How to read 275/65R20

How to read any tire size

LT275/65R20 126S as printed on the tire sidewall, with each part numberedLT275/65R20 126S1234567
How LT275/65R20 126S is printed on the sidewall. It's the most common code among the 25 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.

2275Section width

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

365Aspect ratio

A percentage, not a measurement: the sidewall is 65% as tall as the tire is wide, which is 178.8 mm or 7.04 inches.

4RConstruction

Radial construction.

520Wheel diameter

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

6126Load index

Each tire carries up to 3,750 lb (1,700 kg) at its maximum pressure.

7SSpeed rating

Rated for up to 112 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 3,750 lb each, as published.

SpecificationInchesMetric
Overall diameter34.07865 mm
Section width10.83275 mm
Sidewall height7.04178.8 mm
Circumference107.02,719 mm
Revolutions per mile (calculated, unloaded)591.9368 per km
Revolutions per mile (published by manufacturers)601–610374–379 per km
Approved wheel width7.5–9.5191–241 mm

Speedometer error after switching to 275/65R20

Your actual speed– mph

Questions about 275/65R20

What is 275/65R20 in inches?

34.07 inches tall, 10.83 inches wide, on a 20-inch wheel. Written in inches, that is roughly 34.1×10.8R20.

How much does a 275/65R20 tire weigh?

Between 42.1 lb and 67.3 lb for the 25 tires listed here. The lightest is the Toyo Open Country A/T III EV (SL); the heaviest is the Toyo Open Country M/T (LT E).

What wheel width do I need for 275/65R20?

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

How many revolutions per mile does a 275/65R20 make?

Published figures run 601–610 revolutions per mile. The calculated figure is 591.9, but manufacturers measure the tire under load, where it rolls on a smaller radius.

What is the difference between P275/65R20 and LT275/65R20?

Passenger tires (3 here) are built for passenger loads, with max loads of 2756 lb. Light-truck tires (22 here) come in heavier load ranges with max loads of 3750 lb, and are usually heavier with deeper tread.

How much taller is 275/65R20 than 295/60R20?

0.14 inches taller on paper (34.07″ vs 33.94″), which raises the axle about 0.07″. Your speedometer will read about 0.4% slow.