Conversions Table. 1 Megahertz to Cycles Per Second = . 70 Megahertz to Cycles Per Second = . 2 Megahertz to Cycles Per Second = . 80 Megahertz to Cycles Per Second = . 3 Megahertz to Cycles Per Second = . 90 Megahertz to Cycles Per Second = . 4 Megahertz to Cycles Per Second = .