Tyre size prices
235/45 R18 tyres: UK prices by brand tier and fitted cost
A 235/45 R18 car tyre cost a median £69.00 budget, £112.04 mid-range, £147.69 premium per tyre (summer, not run-flat, including VAT and delivery), across 190 offers from 49 brands observed at Camskill and Tyreleader on 23 September 2026. Fitted, a mid-range set of four comes to about £576 (73 Auto estimate including fitting, balancing, valves and disposal).
Data to 2026-09-23 · Page updated 2026-09-28 · Publisher: 73 Auto
- Mid-range tyre, median
- £112.04
- 42 summer offers, 23 September 2026
- Fitted set of four
- £576
- 73 Auto estimate, mid-range tyres
- Offers
- 190
- 49 brands, 2 retailers
235/45 R18 price per tyre by brand tier and season
A premium-brand 235/45 R18 tyre costs 32% more than a mid-range one (£147.69 against £112.04 median).
Budget brands save a further £43.04 per tyre at the median.
That mid-range median is 5% more than the 18-inch average across all sizes (£107.10).
Mid-range all-season tyres in this size cost 22% more than summer tyres.
A row appears only where at least three offers exist. Run-flat tyres are excluded here and measured separately below.
| Tier | Season | Median | Middle half | Offers |
|---|---|---|---|---|
| Premium | Summer | £147.69 | £137.43–£159.06 | 76 |
| Premium | All-season | £150.99 | £145.06–£165.29 | 8 |
| Premium | Winter | £186.99 | £169.09–£187.09 | 3 |
| Mid-range | Summer | £112.04 | £100.37–£126.27 | 42 |
| Mid-range | All-season | £136.59 | £116.73–£153.84 | 5 |
| Budget | Summer | £69.00 | £59.69–£82.06 | 48 |
| Budget | Winter | £83.44 | £79.89–£88.64 | 4 |
Extra load (XL) and run-flat versions
149 of the 190 offers are XL (reinforced) and 2 are run-flat.
Comparing the same retailer’s same tyre with and without XL (8 like-for-like pairs), the XL version costs a median 1% more. There are too few like-for-like run-flat pairs to measure a run-flat premium.
Fit XL or run-flat tyres where the car came with them: the load index and construction are part of the approved specification.
Fitted cost of four 235/45 R18 tyres
73 Auto estimate: four times the median summer tyre price plus a typical per-tyre charge for fitting, balancing, valve and disposal at this rim size (£32.00 per tyre). Run-flat tyres and SUVs usually cost more to fit.
| Tier | Tyre median | Fitting per tyre | Set of four fitted |
|---|---|---|---|
| Premium | £147.69 | £32.00 | £719 |
| Mid-range | £112.04 | £32.00 | £576 |
| Budget | £69.00 | £32.00 | £404 |
235/45 R18 dimensions
Calculated from the size itself; real tyres vary by a few millimetres between brands.
| Measurement | Value |
|---|---|
| Section width | 235 mm |
| Sidewall height | 105.8 mm (45% of width) |
| Rim diameter | 18 in (457.2 mm) |
| Overall diameter | 668.7 mm |
| Circumference | 2,101 mm |
| Revolutions per mile | 766 |
Cars that came with 235/45 R18 tyres
13 model generations in 73 Auto's factory fitment reference use this size as standard or as a wheel option. Check your own tyres or handbook: the same model is often sold on several wheel sizes.
- Ford Mondeo Mk5 — all four wheels
- Hyundai Kona OS — all four wheels (wheel option)
- Hyundai Kona SX2 — all four wheels
- Peugeot 508 508 II — all four wheels
- Skoda Superb Superb III — all four wheels
- Skoda Superb Superb IV — all four wheels
- Tesla Model 3 Model 3 — all four wheels
- Tesla Model 3 Model 3 Highland — all four wheels
- Vauxhall Astra Astra J — all four wheels (wheel option)
- Volkswagen Passat B8 — all four wheels
- Volvo V60 V60 II — all four wheels
- Porsche Boxster 982/981 — front axle
- Porsche Cayman 982/981 — front axle
Sizes with a similar overall diameter
The published sizes nearest to 235/45 R18 in overall diameter, with their mid-range price. A different size is only safe and legal if the vehicle maker approves it for your car.
| Size | Overall diameter | Difference | Mid-range median |
|---|---|---|---|
| 215/55 R17 | 668.3 mm | -0.1% | £93.70 |
| 235/40 R19 | 670.6 mm | +0.3% | £130.55 |
| 235/50 R17 | 666.8 mm | -0.3% | £95.55 |
| 215/50 R18 | 672.2 mm | +0.5% | £115.40 |
| 205/65 R16 | 672.9 mm | +0.6% | £90.50 |
| 215/60 R16 | 664.4 mm | -0.6% | £94.30 |
Limitations
Prices observed on public UK retailer listings (Camskill and Tyreleader) on 23 September 2026, aggregated by 73 Auto. Figures are aggregates of listed prices (medians and the middle half of offers); no individual offer is shown. Retail prices change daily and differ with stock and promotions.
Brand tiers: premium is Michelin, Pirelli, Continental, Bridgestone, Goodyear and Dunlop; mid-range is established second-line brands; everything else is budget. The fitted set of four is a 73 Auto estimate, not a garage quote.
Does your car run on 235/45 R18 tyres? See its full running cost
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Where these figures come from
- Tyre prices observed on public UK retailer listings (Camskill, Tyreleader) on 2026-09-23, aggregated by 73 Auto — Camskill, Tyreleader (observed); 73 Auto (aggregation). Published retail prices, reused only as aggregates (medians, quartiles, counts); retailers' terms and robots rules reviewed 2026-09-23.
- 73 Auto factory tyre fitment reference (fitment source registry cited per row) — 73 Auto, from manufacturer documents and tyre-maker OE catalogues. 73 Auto editorial data.
- Fitting, balancing, valve and disposal charges by rim band — GRIP500 published fitting price schedule; 73 Auto allowance. Published price schedule, cited.
Figures labelled as 73 Auto estimates are our own analysis of these sources, set out in the methodology and data sources. To report a factual error, see corrections.