215/45-R17 tires are 1.06 inches (27 mm) smaller in diameter than 245/45-R17 tires and the speedometer difference is 4.1%. Tire Size Calculator - Tire & Wheel Plus Sizing. BETA. 225-50R17 tire size comparison with 1010tires.com Tire Size calculator. Use our tire calculator to compare tire sizes based on tire diameter, radius, sidewall height, circumference, revs per mile and speedometer difference. 245/45-R18 tires are 0.82 inches (20.9 mm) larger in diameter than 225/50-R17 tires and the speedometer difference is 3.1%. 245/45-R20 tires are 0.17 inches (4.2 mm) larger in diameter than 225/65-R17 tires and the speedometer difference is 0.6%. Better Fuel Economy Factory Ratios Increased Power. vs 225/50-17 vs 225/45-17 vs 235/45-17 vs 275/40-17 vs 255/45-17 vs 255/40-17. 275/40-R17 tires are 0.02 inches (0.5 mm) smaller in diameter than 245/45-R17 tires and the speedometer difference is 0.1%. May 13, 2021 · Negative - Average aquaplaning resistance, average comfort levels. Overall - Very good - Continental win more tests than any other brand in Europe, and this was apparent with the excellent SportContact 5 even though it has now been replaced by the newer PremiumContact 6. View Full Test >>. 2017 Auto Bild UHP Tyre Test - 8th of 9 tyres. The first number 245 is the tire width in millimeters. The 2nd number 40 is used to calculate the sidewall height or "aspect ratio", by percentage. So, the sidewall height of a 245/40 R 18 tire is 60% of 245 = 192. The 3rd number 18 (generally preceded by an "R") is Rim Diameter in inches. 245/40-R18 tires are 0.74 inches (18.9 mm) larger in diameter than 225/45-R17 tires and the speedometer difference is 2.9%. The calculation results are presented in the form of visual infographics, on which tire with size 225/45 R17 is on top, and tire with size 215/50 R17 below. Both in the table and in the graph, the tires are compared according to the following indicators: overall diameter, section width, circumference, sidewall height and clearance. Tire 1 / R 225 55 R 17 Tire 2 / R 245 40 R 19 Inch Mill KPH MPH Odometer Reading If you replace 320/60/18 with 235/60/18 for Odometer reading 1000 the actual distance traveled = 879 ~ ( -12.1 %) (If your Odometer is accurate for original tires) Edit and Copy Tire diagram above to compare or print. Speedo Difference between Wheels 12.1% aa31FgF.

245 40 r17 vs 225 45 r17