2020 Nissan Titan XD — PRO-4X
The 2020 Nissan Titan XD PRO-4X came from the factory equipped with 275/65R18 tires. If your vehicle has since been fitted with aftermarket or upsized wheels, your actual tire size may no longer match this factory spec — always confirm against your door placard before buying.
275/65R18
| Section width | 275 mm |
|---|---|
| Aspect ratio (sidewall height) | 65% (178.8 mm) |
| Rim diameter | 18" |
| Overall tire diameter | ~32.1" |
| Revolutions per mile | ~629 |
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What this size means for your Nissan Titan XD
On the 2020 Nissan Titan XD PRO-4X, the factory 275/65R18 measures about 32.1″ in overall diameter with a 178.8 mm (7″) sidewall, and completes roughly 629 revolutions per mile. Its 65-series aspect ratio gives a taller, comfort-biased sidewall that favors ride quality and shrugs off rough pavement. In tire terms it is a passenger (P-metric / Euro-metric) size.
Other 2020 Nissan Titan XD trims
- Platinum Reserve 265/60R20
- S 245/75R17
- SL 265/60R20
- SV 245/75R17 / 265/60R20
Nissan Titan XD tire sizes by year
- 2024 Nissan Titan XD 265/60R20
- 2023 Nissan Titan XD 265/60R20
- 2022 Nissan Titan XD 265/60R20
- 2021 Nissan Titan XD 265/60R20
- 2019 Nissan Titan XD 265/60R20
- 2018 Nissan Titan XD 265/60R20
- 2017 Nissan Titan XD 265/60R20
- 2016 Nissan Titan XD 265/60R20
How to read a tire size
A tire size like 225/45R17 breaks down into three parts:
the first number is the section width in millimeters
(the tire's width from sidewall to sidewall), the second is the
aspect ratio — the sidewall's height as a percentage of
that width — and the number after the "R" is the rim
diameter in inches. A letter prefix (P or LT) indicates
Passenger or Light Truck construction; its absence usually means
Euro-metric sizing.
Some trucks and off-road tires instead use "flotation" sizing, like
37X12.50R17 — here the numbers are the tire's overall
diameter and width in inches directly, with the rim diameter last.
Always verify against the tire information placard on your driver's-side door jamb or your owner's manual before purchasing — tire size can vary by factory option package even within the same trim.