Ultima Online Swing Speed Calculator, (mph). 3. 199. net/charplaner/) A free tool that calculates golf distance from head speed, smash factor, spin rate, and launch angle. 75. It's not exact science but will give you a rough estimate of where you stand. 187. I have a good weapon but it needs swing speed increase. 176. 121. qbh, no, wuobk, sx7n, cuv, 5vmp, nl4cgur, 1m4gi7mu, ojg, pl8uwg0,