2017 Honda Civic — Hatchback Sport Touring
The 2017 Honda Civic Hatchback Sport Touring came from the factory equipped with 235/40R18 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.
235/40R18
| Section width | 235 mm |
|---|---|
| Aspect ratio (sidewall height) | 40% (94 mm) |
| Rim diameter | 18" |
| Overall tire diameter | ~25.4" |
| Revolutions per mile | ~794 |
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What this size means for your Honda Civic
On the 2017 Honda Civic Hatchback Sport Touring, the factory 235/40R18 measures about 25.4″ in overall diameter with a 94 mm (3.7″) sidewall, and completes roughly 794 revolutions per mile. Its 40-series aspect ratio gives a low-profile sidewall tuned for sharper handling, common on sport trims and larger-wheel packages. In tire terms it is a passenger (P-metric / Euro-metric) size.
Other 2017 Honda Civic trims
- Coupe EX-L 215/50R17
- Coupe EX-T 215/50R17
- Coupe LX 215/55R16
- Coupe LX-P 215/55R16
- Coupe Touring 215/50R17
- Hatchback EX 215/50R17
- Hatchback EX-L 215/50R17
- Hatchback LX 215/55R16
- Hatchback Sport 235/40R18
- Sedan EX 215/55R16
- Sedan EX-L 215/50R17
- Sedan EX-T 215/50R17
- Sedan LX 215/55R16
- Sedan Touring 215/50R17
- Si Coupe 235/40R18
- Si Sedan 235/40R18
- Type R 235/35R19
Honda Civic tire sizes by year
- 2026 Honda Civic 235/40R18
- 2025 Honda Civic 235/40R18
- 2024 Honda Civic 215/50R17
- 2023 Honda Civic 215/50R17
- 2022 Honda Civic 215/50R17
- 2021 Honda Civic 215/50R17
- 2020 Honda Civic 215/50R17
- 2019 Honda Civic 215/50R17
- 2018 Honda Civic 215/50R17
- 2016 Honda Civic 215/50R17
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.