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Our speedometer calibration calculator will get you the answer you are looking for. Enter your original tire size, your new tire size, and then play with the miles per hour to see how much faster you are going at different speeds.
calculator that shows effect of different size tires on wheel and vehicle speed.
OEM Tire Diameter (inches) Speedometer Reading (mph) Calculate. A tire size speed calculator is a digital tool or formula that helps vehicle owners, mechanics, and enthusiasts understand how changes in tire size affect a vehicle’s speedometer accuracy and its actual speed.
If you changed the size of your tires but didn't re-calibrate your speedometer, you'll want to know how far off it is. Use this calculator to figure that out.
5 lip 2017 · Using the more accurate measurement from the tire size calculator and the full version of the formula (including trans ratio) I got an answer of 1,971.85 rpm—spot on! There are a couple takeaways here if you’re looking to use this equation.
Convert Speed to Feet per Minute (FPM): To find the distance covered in feet per minute, multiply the vehicle’s speed by 5280 (the number of feet in a mile) and then divide by 60 (the number of minutes in an hour).
For a more accurate speed, use our tire size and speedometer calculator. Your GPS device or mobile mapping app may also come equipped with a satellite speedometer function. Still have questions about tire size and speedometer or maybe recalibration?
