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Tire size

295/30R21 tire size: dimensions explained

Factory size on the Tesla Model S. 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 height88.5 mm3.48 in
Overall diameter710.4 mm27.97 in
Wheel diameter533.4 mm21 in
Circumference2233 mm87.9 in
Revolutions per mile721

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, 30 is the sidewall height as a percentage of that width, R means radial construction, and 21 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 295/30R21 with another size →

295/30R21 tires at Tire Rack

All-season

TireLoad/speedPrice per tire
Goodyear Eagle Sport All-Season
Ultra High Performance All-Season		XL 102V$285.04View at Tire Rack

Highway / touring

TireLoad/speedPrice per tire
Continental CrossContact RX
Crossover/SUV Touring All-Season		XL 102W$476.62View at Tire Rack

Summer performance

TireLoad/speedPrice per tire
Continental SportContact 7
Max Performance Summer		XL 102Y$466.43View at Tire Rack
Michelin Pilot Sport EV
Max Performance Summer		XL 101Y$565.99View at Tire Rack

Winter

TireLoad/speedPrice per tire
Pirelli P Zero Winter
Performance Winter / Snow		XL 102W$241.23View at Tire Rack
Continental WinterContact TS 860 S
Performance Winter / Snow		XL 102V$418.22View at Tire Rack

Showing the lowest-priced in-stock options in each category from 13 295/30R21 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