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Tire size

295/40R20 tire size: dimensions explained

Factory size on the Porsche Macan (gas, 95B). Below are the dimensions calculated from the size marking itself. Your vehicle's correct size, load index and speed rating are on the placard in the driver's door jamb; check it before buying.

MeasurementMetricImperial
Section width295 mm11.61 in
Sidewall height118 mm4.65 in
Overall diameter744 mm29.29 in
Wheel diameter508.0 mm20 in
Circumference2337 mm92 in
Revolutions per mile689

Calculated values: diameter = wheel + 2 × (width × aspect ratio). Real tires vary slightly by brand and model.

Reading the marking

295 is the section width in millimetres, 40 is the sidewall height as a percentage of that width, R means radial construction, and 20 is the wheel diameter in inches. A passenger (P or Euro-metric) tire and an LT tire in the same size are not interchangeable without checking load requirements.

Compare 295/40R20 with another size →

295/40R20 tires at Tire Rack

All-season

TireLoad/speedPrice per tire
Radar Dimax AS-8
Grand Touring All-Season		XL 110Y$171.09View at Tire Rack
Toyo Proxes ST III
Street/Sport Truck All-Season Truck		XL 110V$234.26View at Tire Rack

Highway / touring

TireLoad/speedPrice per tire
Kumho Crugen GT Pro
Crossover/SUV Touring All-Season		XL 110W$239.40View at Tire Rack
Yokohama Geolandar X-CV
Crossover/SUV Touring All-Season		XL 110W$369.99View at Tire Rack

All-terrain

TireLoad/speedPrice per tire
Pirelli Scorpion All Terrain Plus
Off-Road All-Terrain Truck		XL 110V$155.00View at Tire Rack
Pirelli Scorpion All Terrain Plus
Off-Road All-Terrain Truck		XL 110V$614.94View at Tire Rack

Summer performance

TireLoad/speedPrice per tire
Bridgestone Potenza Sport
Max Performance Summer		XL 110W$195.21View at Tire Rack
Pirelli P Zero
Max Performance Summer		XL 110Y$208.79View at Tire Rack

Winter

TireLoad/speedPrice per tire
Michelin X-Ice Snow SUV
Light Truck/SUV Studless Ice & Snow Truck		XL 110T$277.28View at Tire Rack
Vredestein Wintrac Pro+
Performance Winter / Snow		XL 110V$356.18View at Tire Rack

Showing the lowest-priced in-stock options in each category from 40 295/40R20 tires in Tire Rack's feed, sorted by price only. We don't rank by commission. Match or exceed the load index and speed rating on your placard.

Affiliate links: if you buy through a Tire Rack link, RightTread may earn a commission through CJ. It doesn't change your price. Prices are Tire Rack's per-tire prices from Tire Rack's product feed as of Nov 7, 2026, 9:19 PM PT. Prices change, so confirm on Tire Rack before you buy. Disclosure

Other sizes