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Tire size

255/50R19 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 width255 mm10.04 in
Sidewall height127.5 mm5.02 in
Overall diameter737.6 mm29.04 in
Wheel diameter482.6 mm19 in
Circumference2316 mm91.2 in
Revolutions per mile695

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

Reading the marking

255 is the section width in millimetres, 50 is the sidewall height as a percentage of that width, R means radial construction, and 19 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 255/50R19 with another size →

255/50R19 tires at Tire Rack

All-season

TireLoad/speedPrice per tire
Advanta HPZ-02
Ultra High Performance All-Season		XL 107V$149.87View at Tire Rack
Radar Dimax AS-8
Grand Touring All-Season		XL 107W$151.95View at Tire Rack

Highway / touring

TireLoad/speedPrice per tire
Kumho Crugen HP71
Crossover/SUV Touring All-Season		XL 107T$162.97View at Tire Rack
Sumitomo HTR Enhance CX2
Crossover/SUV Touring All-Season		XL 107V$181.99View at Tire Rack

All-terrain

TireLoad/speedPrice per tire
Falken WildPeak A/T Trail
On-Road All-Terrain		XL 107V$264.00View at Tire Rack

Summer performance

TireLoad/speedPrice per tire
Pirelli P Zero
Max Performance Summer		103Y$166.03View at Tire Rack
Nexen N FERA RU1
Street/Sport Truck Summer Truck		103Y$232.24View at Tire Rack

Winter

TireLoad/speedPrice per tire
Michelin X-Ice Snow SUV
Light Truck/SUV Studless Ice & Snow Truck		XL 107H$174.18View at Tire Rack
Bridgestone Blizzak DM-V2
Light Truck/SUV Studless Ice & Snow Truck		XL 107T$214.94View at Tire Rack

Showing the lowest-priced in-stock options in each category from 90 255/50R19 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