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235/45 R18 vs 235/40 R18 tyre size

What is the difference between 235/45 r18 and 235/40 r18 tyre size?

235/45 r18 and 235/40 r18 Data for 235/45-18 Data for 235/40-18 235 45 r18 anstatt 235 40 r18
Diameter 668.7 645.2 -23.5 / -3.5%
Width inches 235 235 0 / 0%
Circum. inches 2100.78 2026.96 -73.83 / -3.5%
Sidewall Height 105.75 94 -11.75 / -11.1%
Revolutions per km 476.01 493.35 17.34 / 3.6%

How much bigger is one type of tyre and can I use 235/45 r18 instead of 235/40 r18?

Speed on the speedometer Actual speed
32.19 km/h 31.06 km/h
40.23 km/h 38.82 km/h
48.28 km/h 46.58 km/h
56.33 km/h 54.35 km/h
64.37 km/h 62.11 km/h
72.42 km/h 69.88 km/h
80.47 km/h 77.64 km/h
88.51 km/h 85.4 km/h
96.56 km/h 93.17 km/h
104.61 km/h 100.93 km/h
112.65 km/h 108.7 km/h
120.7 km/h 116.46 km/h
128.75 km/h 124.22 km/h
136.79 km/h 131.99 km/h
144.84 km/h 139.75 km/h
152.89 km/h 147.52 km/h
160.93 km/h 155.28 km/h
Manufacturers
500 items
Goodride ZuperEco Z-107 235/40 R18 95W XL Summer tyres
EAN: 6938112620974 MPN: 0301043520162G140201
Reviews - 8
  • Rolling resistance coefficient ) C
  • The best grip of tyre ) B
  • Noise emission level B ) 72dB
  • Season: Summer tyres
  • Tyre size: 235 40 R18
  • Load index: 95 = to 690 kg
  • Speed rating: W = to 270 km/h
  • Extra Load / Reinforced: XL
  • Rim protection: Yes
  • Type: Passenger car
  • Run-Flat Tyres No
  • M+S: No
Details
Free delivery on this item
In stock
£48.99
Price per item

price incl. 20% VAT

free delivery

Milever Sport Pro MA352 235/45 R18 98W Summer tyres
EAN: 6976540111237 MPN: 1105127
Submit a review
  • Rolling resistance coefficient ) B
  • The best grip of tyre ) C
  • Noise emission level B ) 71dB
  • Season: Summer tyres
  • Tyre size: 235 45 R18
  • Load index: 98 = to 750 kg
  • Speed rating: W = to 270 km/h
  • Type: Passenger car
  • Rim protection No
  • M+S: No
Details
Free delivery on this item
In stock
£50.49
Price per item

price incl. 20% VAT

free delivery

Star Performer Solar - 4S 235/45 R18 98W All season tyres
EAN: 6959956803347 MPN: 221034993
Submit a review
  • Rolling resistance coefficient ) C
  • The best grip of tyre ) C
  • Noise emission level B ) 72dB
  • Winter
  • Season: All-season tyres
  • Alpine Symbol (3PMSF): Yes
  • Tyre size: 235 45 R18
  • Load index: 98 = to 750 kg
  • Speed rating: W = to 270 km/h
  • M+S: Yes
  • Type: Passenger car
  • Rim protection No
Details
Free delivery on this item
In stock
£58.49
Price per item

price incl. 20% VAT

free delivery

Milever Winter Max-A1 MW255 235/40 R18 95V Winter tyres
EAN: 6950306353697 MPN: 1104335
Submit a review
  • Rolling resistance coefficient ) C
  • The best grip of tyre ) C
  • Noise emission level B ) 72dB
  • Winter
  • Season: Winter tyres
  • Alpine Symbol (3PMSF): Yes
  • Tyre size: 235 40 R18
  • Load index: 95 = to 690 kg
  • Speed rating: V = to 240 km/h
  • M+S: Yes
  • Type: Passenger car
  • Rim protection No
Details
Free delivery on this item
In stock
£61.99
Price per item

price incl. 20% VAT

free delivery

Star Performer Interstellar 235/40 R18 95W Summer tyres
EAN: 6959956792238 MPN: 221032281
Submit a review
  • Rolling resistance coefficient ) D
  • The best grip of tyre ) B
  • Noise emission level B ) 72dB
  • Season: Summer tyres
  • Tyre size: 235 40 R18
  • Load index: 95 = to 690 kg
  • Speed rating: W = to 270 km/h
  • Type: Passenger car
  • Rim protection No
  • M+S: No
Details
Free delivery on this item
In stock
£63.49
Price per item

price incl. 20% VAT

free delivery

Star Performer Interstellar 235/45 R18 98Y XL Summer tyres
EAN: 6959956792245 MPN: 221032282
Submit a review
  • Rolling resistance coefficient ) C
  • The best grip of tyre ) B
  • Noise emission level B ) 72dB
  • Season: Summer tyres
  • Tyre size: 235 45 R18
  • Load index: 98 = to 750 kg
  • Speed rating: Y = to 300 km/h
  • Extra Load / Reinforced: XL
  • Type: Passenger car
  • C-type No
  • Rim protection No
  • M+S: No
Details
Free delivery on this item
In stock
£64.49
Price per item

price incl. 20% VAT

free delivery

Star Performer Stratos UHP 235/45 R18 98V XL Winter tyres
EAN: 6959956787357 MPN: 221031622
Reviews - 3
  • Rolling resistance coefficient ) D
  • The best grip of tyre ) C
  • Noise emission level B ) 72dB
  • Winter
  • Season: Winter tyres
  • Alpine Symbol (3PMSF): Yes
  • Tyre size: 235 45 R18
  • Load index: 98 = to 750 kg
  • Speed rating: V = to 240 km/h
  • Extra Load / Reinforced: XL
  • M+S: Yes
  • Type: Passenger car
  • C-type No
  • Rim protection No
Details
Free delivery on this item
In stock
£64.99
Price per item

price incl. 20% VAT

free delivery

Triangle EFFEXSPORT TH202 235/40 R18 95Y XL Summer tyres
EAN: 6959753231640 MPN: CBPTH20223M18YFJ
Submit a review
  • Rolling resistance coefficient ) C
  • The best grip of tyre ) A
  • Noise emission level B ) 72dB
  • Season: Summer tyres
  • Tyre size: 235 40 R18
  • Load index: 95 = to 690 kg
  • Speed rating: Y = to 300 km/h
  • Extra Load / Reinforced: XL
  • Rim protection: Yes
  • M+S: Yes
  • Type: Passenger car
  • C-type No
  • Run-Flat Tyres No
Details
Free delivery on this item
In stock
£65.49
Price per item

price incl. 20% VAT

free delivery

Minerva S210 235/40 R18 95V XL Winter tyres
EAN: 5420068602988 MPN: MW266
Reviews - 1
  • Rolling resistance coefficient ) C
  • The best grip of tyre ) C
  • Noise emission level B ) 72dB
  • Winter
  • Season: Winter tyres
  • Alpine Symbol (3PMSF): Yes
  • Tyre size: 235 40 R18
  • Load index: 95 = to 690 kg
  • Speed rating: V = to 240 km/h
  • Extra Load / Reinforced: XL
  • M+S: Yes
  • Type: Passenger car
  • C-type No
  • Run-Flat Tyres No
  • Rim protection No
Details
Free delivery on this item
In stock
£69.49
Price per item

price incl. 20% VAT

free delivery

Tristar Ecopower 4S 235/40 R18 95W XL All season tyres
EAN: 5420068605651 MPN: TF05651
Submit a review
  • Rolling resistance coefficient ) C
  • The best grip of tyre ) C
  • Noise emission level B ) 70dB
  • Winter
  • Season: All-season tyres
  • Alpine Symbol (3PMSF): Yes
  • Tyre size: 235 40 R18
  • Load index: 95 = to 690 kg
  • Speed rating: W = to 270 km/h
  • Extra Load / Reinforced: XL
  • Type: Passenger car
  • Rim protection No
  • Run-Flat Tyres No
Details
Free delivery on this item
In stock
£69.99
Price per item

price incl. 20% VAT

free delivery

Tristar Ice-Plus S210 235/40 R18 95V XL Winter tyres
EAN: 5420068662098 MPN: TU169
Submit a review
  • Rolling resistance coefficient ) C
  • The best grip of tyre ) C
  • Noise emission level B ) 72dB
  • Winter
  • Season: Winter tyres
  • Alpine Symbol (3PMSF): Yes
  • Tyre size: 235 40 R18
  • Load index: 95 = to 690 kg
  • Speed rating: V = to 240 km/h
  • Extra Load / Reinforced: XL
  • M+S: Yes
  • Type: Passenger car
  • C-type No
  • Run-Flat Tyres No
  • Rim protection No
Details
Free delivery on this item
In stock
£71.49
Price per item

price incl. 20% VAT

free delivery

APlus A610 235/45 R18 98W XL Summer tyres
EAN: 6924064129979 MPN: 7AP2396H1
Submit a review
  • Rolling resistance coefficient ) C
  • The best grip of tyre ) C
  • Noise emission level B ) 71dB
  • Season: Summer tyres
  • Tyre size: 235 45 R18
  • Load index: 98 = to 750 kg
  • Speed rating: W = to 270 km/h
  • Extra Load / Reinforced: XL
  • Type: Passenger car
  • C-type No
  • Rim protection No
  • M+S: No
Details
Free delivery on this item
In stock
£71.99
Price per item

price incl. 20% VAT

free delivery

Sunny Wintermax NW211 235/40 R18 95V XL Winter tyres
EAN: 6950306363566 MPN: 6356
Reviews - 1
  • Rolling resistance coefficient ) C
  • The best grip of tyre ) C
  • Noise emission level B ) 72dB
  • Winter
  • Season: Winter tyres
  • Alpine Symbol (3PMSF): Yes
  • Tyre size: 235 40 R18
  • Load index: 95 = to 690 kg
  • Speed rating: V = to 240 km/h
  • Extra Load / Reinforced: XL
  • Rim protection: Yes
  • M+S: Yes
  • Type: Passenger car
  • C-type No
  • Run-Flat Tyres No
Details
Free delivery on this item
In stock
£71.99
Price per item

price incl. 20% VAT

free delivery

Atlas Sport Green 2 235/45 R18 98W XL Summer tyres
EAN: 5420068654888 MPN: AT250
Reviews - 3
  • Rolling resistance coefficient ) C
  • The best grip of tyre ) B
  • Noise emission level B ) 70dB
  • Season: Summer tyres
  • Tyre size: 235 45 R18
  • Load index: 98 = to 750 kg
  • Speed rating: W = to 270 km/h
  • Extra Load / Reinforced: XL
  • Type: Passenger car
  • C-type No
  • Run-Flat Tyres No
  • Rim protection No
  • M+S: No
Details
Free delivery on this item
In stock
£72.49
Price per item

price incl. 20% VAT

free delivery

Double coin DC100 235/40 R18 95Y XL Summer tyres
EAN: 6971861772600 MPN: 80418472
Reviews - 1
  • Rolling resistance coefficient ) C
  • The best grip of tyre ) C
  • Noise emission level B ) 72dB
  • Season: Summer tyres
  • Tyre size: 235 40 R18
  • Load index: 95 = to 690 kg
  • Speed rating: Y = to 300 km/h
  • Extra Load / Reinforced: XL
  • Type: Passenger car
  • Rim protection No
  • M+S: No
Details
Free delivery on this item
In stock
£72.49
Price per item

price incl. 20% VAT

free delivery

APlus A610 XL 235/40 R18 95Y XL Summer tyres
EAN: 6924064130258 MPN: 7AP2425H1
Reviews - 2
  • Rolling resistance coefficient ) C
  • The best grip of tyre ) C
  • Noise emission level B ) 71dB
  • Season: Summer tyres
  • Tyre size: 235 40 R18
  • Load index: 95 = to 690 kg
  • Speed rating: Y = to 300 km/h
  • Extra Load / Reinforced: XL
  • Type: Passenger car
  • C-type No
  • Run-Flat Tyres No
  • Rim protection No
  • M+S: No
Details
Free delivery on this item
In stock
£73.49
Price per item

price incl. 20% VAT

free delivery

Superia EcoBlue 4S 235/40 R18 95W XL All season tyres
EAN: 5420068677023 MPN: SF077023
Reviews - 1
  • Rolling resistance coefficient ) C
  • The best grip of tyre ) C
  • Noise emission level B ) 70dB
  • Winter
  • Season: All-season tyres
  • Alpine Symbol (3PMSF): Yes
  • Tyre size: 235 40 R18
  • Load index: 95 = to 690 kg
  • Speed rating: W = to 270 km/h
  • Extra Load / Reinforced: XL
  • M+S: Yes
  • Type: Passenger car
  • C-type No
  • Run-Flat Tyres No
  • Rim protection No
Details
Free delivery on this item
In stock
£73.99
Price per item

price incl. 20% VAT

free delivery

Superia Bluewin UHP 2 235/40 R18 95V XL Winter tyres
EAN: 5420068618972 MPN: SV018972
Submit a review
  • Rolling resistance coefficient ) C
  • The best grip of tyre ) C
  • Noise emission level B ) 70dB
  • Winter
  • Season: Winter tyres
  • Alpine Symbol (3PMSF): Yes
  • Tyre size: 235 40 R18
  • Load index: 95 = to 690 kg
  • Speed rating: V = to 240 km/h
  • Extra Load / Reinforced: XL
  • M+S: Yes
  • Type: Passenger car
  • C-type No
  • Rim protection No
Details
Free delivery on this item
In stock
£73.99
Price per item

price incl. 20% VAT

free delivery

Fortuna Gowin UHP 2 235/40 R18 95V XL Winter tyres
EAN: 5420068639489 MPN: FP039489
Submit a review
  • Rolling resistance coefficient ) C
  • The best grip of tyre ) C
  • Noise emission level B ) 70dB
  • Winter
  • Season: Winter tyres
  • Alpine Symbol (3PMSF): Yes
  • Tyre size: 235 40 R18
  • Load index: 95 = to 690 kg
  • Speed rating: V = to 240 km/h
  • Extra Load / Reinforced: XL
  • M+S: Yes
  • Type: Passenger car
  • C-type No
  • Rim protection No
Details
Free delivery on this item
In stock
£73.99
Price per item

price incl. 20% VAT

free delivery

Sunny Wintermax NW211 235/45 R18 98V XL Winter tyres
EAN: 6950306306945 MPN: 0694
Reviews - 2
  • Rolling resistance coefficient ) C
  • The best grip of tyre ) C
  • Noise emission level B ) 72dB
  • Winter
  • Season: Winter tyres
  • Alpine Symbol (3PMSF): Yes
  • Tyre size: 235 45 R18
  • Load index: 98 = to 750 kg
  • Speed rating: V = to 240 km/h
  • Extra Load / Reinforced: XL
  • Rim protection: Yes
  • M+S: Yes
  • Type: Passenger car
  • C-type No
  • Run-Flat Tyres No
Details
Free delivery on this item
In stock (Item(s) left: 6)
£73.99
Price per item

price incl. 20% VAT

free delivery

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