Tires
305/55R20 Tires
Shop 305/55R20 tires for trucks, SUVs, and light-duty pickups. Compare all-season, winter, and all-weather options from top brands with free shipping across the USA.
69 products found
305/55R20 Tires — Buying Guide for American Drivers
305/55R20 is a popular tire size for trucks, SUVs, and light-duty pickups in the USA. You may also see this size written as 305/55R20, 305 55 R20, 305-55-20, or 3055520 — all of those refer to the same tire. When shopping 305/55R20 tires, look for a load index that matches your vehicle's placard rating (typically 91–110 for passenger and light truck applications) and a speed rating of H or V for highway driving. All-season 305/55R20 tires are built for spring, summer, and fall driving when average temperatures stay above 7 °C — they harden in real American winter cold, so they're not a substitute for proper winter rubber. For sub-zero temperatures, snow, and ice you want a dedicated winter tire in 305/55R20 with the Three-Peak Mountain Snowflake (3PMSF) symbol, which is also a legal requirement in Quebec from December 1 to March 15. All-weather 305/55R20 tires split the difference — 3PMSF-certified for winter use but designed to run year-round without a seasonal swap, which is the right call for milder American climates. Filter by season, brand, speed rating, and load index above to find the right 305/55R20 tire for your vehicle. Autrex ships across the USA with free shipping on orders over $99.
305/55R20 reads as a 305 mm tread width, a sidewall 55% as tall as that width, on a 20-inch rim.
We currently list 69 305/55R20 tires available to order, from brands including Nitto, Falken, Toyo Tire, Venom Power and Mickey Thompson (37 all-season, 30 all-weather and 1 winter).
305/55R20 tire size specifications
305/55R20 is a metric tire size: a 305 mm section width, a sidewall 55% as tall as that width, on a 20-inch rim.
| Specification | Value | Source |
|---|---|---|
| Tire size | 305/55R20 | From the size |
| Sizing system | Metric | From the size |
| Section width | 305 mm (12.0 in) | From the size |
| Aspect ratio | 55% | From the size |
| Sidewall height | 168 mm (6.6 in) | Calculated |
| Rim diameter | 20 in | From the size |
| Overall diameter | 844 mm (33.2 in) | Calculated |
| Circumference | 2,650 mm (104.3 in) | Calculated |
| Revolutions per km | 377 | Calculated |
| Overall diameter reported on listings | 33.20 to 34.00 in | Listings in stock |
| Load index | 116, 121/118, 121, 125/122, 125 | Listings in stock |
| Speed rating | Q, R, S, T | Listings in stock |
| Load range | E, F | Listings in stock |
| Tire type | LT, P | Listings in stock |
| Seasons | All-season, All-weather, Winter | Listings in stock |
Dimensions are calculated from the size and are nominal; real tires vary by model. Load index, speed rating and load range are read from the 69 305/55R20 tires we list in stock. Match them to your vehicle's placard.
Compare 305/55R20 tires by brand
69 305/55R20 tires in stock from 32 brands.
| Brand | In stock | Load index | Load range | Speed rating | Season | Models |
|---|---|---|---|---|---|---|
| Nitto | 10 | 116, 121/118, 125/122 | E, F | Q, R, S, T | All-season, All-weather | Terra Grappler G3, NT420V, Recon Grappler A/T |
| Falken | 6 | 116, 121/118, 125/122 | — | Q, R, S, T | All-season, All-weather, Winter | Wildpeak A/T4W, Wildpeak AT3W, Wildpeak MT |
| Toyo Tire | 5 | 121/118, 125/122, 125 | F | Q | All-season, All-weather | Open Country A/T III, Open Country R/T, Open Country M/T |
| Venom Power | 5 | 116, 121/118, 125/122 | E, F | Q, S | All-season | Terra Hunter R/T+, Terra Hunter X/T, Terra Hunter R/T |
| Amp Tires | 4 | 121/118, 125/122 | E, F | Q, S | All-season, All-weather | Terrain Pro A/T, Terrain Attack A/T A, Terrain Attack M/T |
| Mickey Thompson | 4 | 125 | — | Q | All-season, All-weather | Baja Legend MTZ, Baja Boss M/T, Baja Legend EXP |
| Yokohama | 4 | 121, 125 | E | Q, S | All-season, All-weather | Geolandar A/T4 G018, Geolandar A/T XD, Geolandar M/T G003 |
| Sailun | 3 | 121/118, 125/122 | E, F | Q, R | All-season, All-weather | TerraMax A/T2, TerraMax M/T, TerraMax RT |
| BF Goodrich | 2 | 121, 125 | E, F | Q, S | All-season, All-weather | All Terrain T/A KO3, Mud-Terrain T/A KM3 |
| General Tire | 2 | — | — | — | — | — |
| General Tire & Rubber | 2 | 121 | — | Q, S | All-season, All-weather | Grabber A/Tx, Grabber X3 |
| Haida | 2 | 121/118 | E | Q, S | All-weather | HD829 All-Terrain, HD869 Mud Champ |
| Kumho | 2 | — | E, F | Q, S | All-season, All-weather | Road Venture AT52, Road Venture MT71 |
| Mastercraft Tires | 2 | 121/118, 125/122 | — | Q, S | All-season | Courser Trail HD, Courser MXT |
| Nexen | 2 | 125/122 | — | Q, S | All-season, All-weather | Roadian ATX, Roadian MTX |
| Accelera | 1 | 121/118 | — | S | All-season | Epsilon AT |
| Arroyo Tires | 1 | 116 | — | T | All-weather | Tamarock R/T |
| Atturo | 1 | 121/118 | — | Q | All-season | Trail Blade XT |
| Avix Tire | 1 | 125/122 | F | Q | All-season | Trailtek R/T |
| Bridgestone | 1 | 121 | E | S | All-weather | Dueler A/T Ascent |
| Cooper Tire & Rubber | 1 | 125/122 | F | Q | All-season | Discoverer Rugged Trek LT |
| Firestone | 1 | 121 | E | R | All-weather | Destination X/T |
| Greentrac Tyres | 1 | 121 | — | Q | All-weather | Rough Master RT |
| Hankook | 1 | 125 | F | R | All-weather | Dynapro XT |
| Kanati | 1 | 121/118 | E | Q | All-weather | Trail Hog A/T |
| Nankang | 1 | 121 | E | S | All-weather | AT-5 Conqueror A/T |
| PR MileKing | 1 | 121 | — | S | All-season | MK829 |
| Radar Tires | 1 | 121/118 | — | S | All-season | Renegade A/T-Pro |
| RBP | 1 | 121/118 | — | S | All-season | Repulsor RT |
| RBP Wheels | 1 | — | — | — | — | — |
| Rovelo | 1 | 125 | F | Q | All-weather | Ridgetrak R/T RT01 |
| Tesche | 1 | 121/118 | — | S | — | Ridge Blade X/T PRO |
305/55R20 tire questions
- What does 305/55R20 mean?
- 305/55R20 describes a tire 305 mm wide at its widest point, with a sidewall 55% as tall as it is wide, built for a 20-inch rim.
- How tall is a 305/55R20 tire?
- Calculated from the size, a 305/55R20 tire stands about 844 mm (33.2 inches) tall. The tires we list in this size report 33.20 to 34.00 inches, because real tires vary by model.
- Which brands make 305/55R20 tires?
- We currently list 305/55R20 tires from Nitto, Falken, Toyo Tire, Venom Power, Amp Tires, Mickey Thompson, Yokohama and Sailun.
