Best For
- Crossovers and SUVs that mix pavement with light gravel or snow
- Family hauling with enough sidewall for driveway and washboard comfort
- Owners who want versatile all-season or touring coverage in this size
SUV / Crossover
285/55R20 Tire Size
Overall Diameter
32.34in
Affects ride height, gearing, and speedometer accuracy.
Section Width
11.22in
Affects traction footprint and steering effort.
Sidewall Height
6.17in
Influences ride comfort and off-road compliance.
Circumference
101.61in
Determines distance traveled per wheel revolution.
Revs Per Mile
624
Used for speedometer and gearing calculations.
Wheel Diameter
20in
Determines wheel compatibility and fitment.
285/55R20 sits in the crossover/SUV band: enough sidewall for daily comfort with more footprint than compact passenger sizes. Roughly 32.3" overall on a 20-inch wheel (~6.2" sidewall) suits mixed pavement, light gravel, and family hauling. Products indexed for this size include all-terrain and touring options. Load range still varies by model — match placard requirements before towing or carrying heavy loads.
- Strong fit for crossovers and SUVs that mix pavement with light gravel or seasonal snow.
- Indexed products include 2 brands and 6 full-spec rows.
- Tradeoffs may include ride comfort, steering weight, clearance, speedometer change, or fuel economy depending on the jump from stock.
At a Glance
Nominal dimensions calculated from the 285/55R20 size code (285/55R20). Load range and speed rating come from indexed manufacturer products when available.
Rim Diameter Calculated
20"
Section Width Calculated
285 mm
Aspect Ratio Calculated
55%
Load Range Manufacturer
E
Speed Rating Manufacturer
Q, R, T
Construction Standard
Radial
Applicable Tire Categories
Based on this size’s editorial category and exact-size product metadata. A size may support several uses without every product in the size belonging to every category.
Consider Another Size If
- You want a dedicated off-road tire package or taller flotation size
- Maximum fuel economy and the quietest highway commute matter most
- You need sharp low-profile performance handling
Real-World Impact
- Balanced ride height and everyday versatility
- Modest clearance gain vs smaller passenger sizes
- Heavier than compact-car tires; watch load range for towing
Verified Vehicle Examples
Documented OE or commonly associated platforms for 285/55R20.
-
Ford
F-150
Lariat
2015–2020
-
Ram
1500
Laramie
2019–2024
-
Chevrolet
Silverado 1500
RST
2019–2024
-
Toyota
Tundra
Limited
2014–2021
-
GMC
Sierra 1500
Denali
2019–2024
Documented fitment mappings for research. Vehicle clearance depends on trim, wheel offset, suspension height, and tire model — confirm fitment before buying.
Real Tires Available in This Size
Indexed manufacturer models confirmed in exact size 285/55R20
Manufacturer-provided product/spec data from Michelin, Goodyear, BFGoodrich, Toyo, and Falken where available.
All-Terrain
Rubitrek A/T
285/55R20 · 122/119T · Load Range E
All-Terrain
Wildpeak A/T4W
285/55R20 · 114T · Load Range SL
All-Terrain
Discoverer Rugged Trek LT
285/55R20 · 122Q · Load Range E
All-Terrain
Wrangler Duratrac RT-LT
285/55R20 · 122R · Load Range E
Wildpeak R/T
285/55R20 · 122/119R · Load Range E
Best Options by Use Case
All-Terrain
Best first stop for mixed daily driving, gravel, trails, and overland use.
Top pick
Goodyear Discoverer® Rugged Trek® LT
Other options
- Goodyear Wrangler Duratrac® RT-LT
- Falken Rubitrek A/T
Product Spec Comparison
Compare tread depth, weight, max load, pressure, and revs per mile for full-spec 285/55R20 products.
FAQ
Is 285/55R20 good for SUV and crossover use?
285/55R20 works well for SUV and crossover use when you need a bit more footprint than a compact passenger tire without jumping to a tall truck flotation size. Overall diameter is about 32.34" with ~6.17" of sidewall on a 20-inch wheel. Confirm load range if you tow or haul regularly.
What vehicles use 285/55R20 tires?
285/55R20 is commonly seen on or upgraded to by owners of trucks, SUVs, and crossover platforms that can clear this diameter. Exact factory fitment depends on trim, wheel offset, and suspension height — confirm clearance and load requirements before treating it as a direct replacement.
What load ranges are available?
Indexed products for 285/55R20 include load ranges such as E and SL, depending on brand and model. Load capacity still comes from the load index and inflation table on the specific tire — not the size code alone. Match the load range to your GVWR and intended payload or towing use.
Which brands make 285/55R20 tires?
Indexed master-database coverage for 285/55R20 includes Falken and Goodyear. Availability still varies by load range, tread type, and season — check the product cards and full-spec table on this page for models currently listed.
How does 285/55R20 compare to 275/60R20?
285/55R20 measures about 32.34" overall versus 32.99" for 275/60R20 (-0.6" / -2.0%). The shorter size usually trims rotational mass and can raise the speedometer reading relative to actual speed, with less ground clearance. Always check fender clearance and load rating before switching.
What is the load capacity of 285/55R20?
Load capacity depends on the exact tire, load index, and inflation pressure — not the size code alone. Check the manufacturer load table and your vehicle placard when setting pressure or carrying heavy loads. If multiple load ranges exist for this size, choose the one that meets or exceeds the placard requirement.
Formula & Methodology
Every dimension on this site is computed in code from the tire size label — we do not scrape or hand-copy manufacturer spec sheets for overall diameter or circumference.
- Parse the size label. Metric sizes (e.g. 275/70R18, LT265/75R16) and flotation sizes (e.g. 33x12.50R15) are parsed into section width, aspect ratio, construction type, and bead-seat wheel diameter.
- Derive nominal dimensions. Sidewall height = section width × aspect ratio ÷ 100. Overall diameter = wheel diameter + 2 × sidewall height. Rolling circumference = π × overall diameter. Revs per mile = 63,360 ÷ circumference (inches per mile). Revs per km uses the same circumference converted to millimetres.
- Compare two sizes. Diameter, width, sidewall, and circumference deltas are signed differences between parsed specs. Speedometer error assumes the cluster is calibrated to the reference tire: true speed = indicated speed × (new diameter ÷ reference diameter). Static ground clearance change uses half the overall-diameter delta at each axle.
Rim diameter shown on this page is always 20" — the bead-seat diameter encoded in 285/55R20.
Safety & Fitment Limitations
- Calculated dimensions are nominal planning baselines from the size code — mounted tires can differ with tread depth, inflation, rim width, and production tolerance.
- Always confirm 285/55R20 against the door placard or owner’s manual, including load index, load range, and speed rating for your vehicle.
- Changing diameter affects speedometer accuracy, gearing feel, ABS/traction calibration, and clearance at fenders, control arms, and the spare well.
- Vehicle examples and product cards are not a guarantee of fitment. Verify wheel diameter (20"), offset, and suspension setup before buying.
Sources & Review
Dimensions are calculated from the tire size label; product rows and fitment mappings come from documented manufacturer and OE sources where available.
- Curated tire-size dataset. Production tire labels, vehicle categories, and optional load/speed ratings maintained in our internal catalog. Only field-valid sizes that round-trip through the parser are published.
- ISO / ETRTO service-description tables. Load index → maximum load (kg) and speed rating symbol → maximum sustained speed (km/h) mappings embedded in our rating resolver, aligned with widely published ETRTO reference values.
- Nominal tire geometry formulas. Overall diameter, sidewall, circumference, and revolutions per mile are calculated from the size code using standard metric and flotation geometric relationships — the same relationships used across the tire industry for nominal sizing.
- Documented OE fitment mappings. Vehicle make, model, trim, and year-range associations linked to specific tire sizes in our fitment data. These are representative applications for research — always confirm against your door placard.
Next step: compare 285/55R20 before changing tire sizes
Compare 285/55R20 against nearby sizes like 275/60R20, 305/55R20, 285/65R20 to check diameter change, speedometer impact, clearance, and fitment tradeoffs.