Tire Height versus rear Gear Ratio Question

Google. There are tons of calculators on the www that will do just that

https://www.google.com/search?num=2...422l0l462801l36l36l3l0l0l0l165l3783l4j29l33l0

http://wahiduddin.net/calc/calc_speed_rpm.htm

http://www.gtsparkplugs.com/GearCalc.html