I really don't know, I didn't measure it. It wasn't as fast as a QWERTY keyboard but it was fast enough. It was definitely way faster than typing using a 10 key numpad on a phone. Based on Steve's recommendation I had also tried a one-hand keyboard that was basically a half sphere with buttons for your four fingers and a number of 'shift' buttons for your thumb (basically all chord all the time) and I never got comfortable enough with it to use it for any length of time.