2018 Toyota Tacoma — SR
The 2018 Toyota Tacoma SR came from the factory equipped with 245/75R16 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.
245/75R16
| Section width | 245 mm |
|---|---|
| Aspect ratio (sidewall height) | 75% (183.8 mm) |
| Rim diameter | 16" |
| Overall tire diameter | ~30.5" |
| Revolutions per mile | ~662 |
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What this size means for your Toyota Tacoma
On the 2018 Toyota Tacoma SR, the factory 245/75R16 measures about 30.5″ in overall diameter with a 183.8 mm (7.2″) sidewall, and completes roughly 662 revolutions per mile. Its 75-series aspect ratio gives a tall sidewall of the kind used on trucks, SUVs, and older passenger cars, built for cushioning and load. In tire terms it is a passenger (P-metric / Euro-metric) size.
Other 2018 Toyota Tacoma trims
- Limited 265/60R18
- SR5 245/75R16
- TRD Off-Road 265/70R16
- TRD Pro 265/70R16
- TRD Sport 265/65R17
Toyota Tacoma tire sizes by year
- 2026 Toyota Tacoma 265/65R18
- 2025 Toyota Tacoma 265/65R18
- 2024 Toyota Tacoma 265/65R18
- 2023 Toyota Tacoma 265/60R18
- 2022 Toyota Tacoma 265/60R18
- 2021 Toyota Tacoma 265/60R18
- 2020 Toyota Tacoma 265/60R18
- 2019 Toyota Tacoma 265/60R18
- 2017 Toyota Tacoma 245/75R16 / 265/70R16 / 265/65R17 / 265/60R18
- 2016 Toyota Tacoma 245/75R16 / 265/70R16 / 265/65R17 / 265/60R18
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.