265/60R20
265/60R20 ships as an OEM size on the Toyota Tundra. At 32.52″ diameter with a 6.26″ sidewall (60% of section width), this size turns 620 revolutions per mile.
About 265/60R20
Factory fitments for 265/60R20 include the Toyota Tundra — meaning replacement tires in this size see steady demand and broad brand availability. At 32.52″ overall diameter, 265/60R20 turns 620 revolutions per mile, which is the reference point the factory speedometer and odometer were calibrated against. The 60% aspect ratio gives it a balanced sidewall — enough compliance for daily comfort without vague steering. The 20″ rim pairing is typical for luxury SUV and performance-oriented platforms, so compatible wheels are easy to source new or used. Going one step shorter to 255/60R20 drops diameter by 1.45%, which stays within the ±3% fitment safe zone for most vehicles. Stepping up to 245/65R20 adds 0.06% diameter — also inside the safe window, with marginally taller ride height. If you are shopping for a direct replacement, any tire within roughly ±0.7″ of the 32.52″ stock diameter (about ±2% in percentage terms) will keep ABS, TPMS, and odometer readings inside the vehicle's designed tolerance.
Compare with another size
275/65R18 or "33" for inch aliases265/60R20
- Diameter
- 32.52″ / 826mm
- Section Width
- 10.43″
- Sidewall
- 6.26″ / 159mm
- Circumference
- 102.16″
- Revs/Mile
- 620
245/60R20
- Diameter
- 31.57″ / 802mm
- Section Width
- 9.65″
- Sidewall
- 5.79″ / 147mm
- Circumference
- 99.2″
- Revs/Mile
- 639
Speedometer & Diameter Impact
At an indicated 60 mph, your actual speed is 58.26 mph (93.76 km/h). Your speedometer reads 2.91% high versus actual speed.