Words per minute is not a talent score. It is a check on whether a listener can hold the names you are saying. News reading sits higher. A thoughtful technical explanation sits lower. The band of 120–160 is a middle that works for behavioral answers and for “tell me about yourself.” Coding and system design explanations can live closer to 110–150, because you are leaving space for a diagram or a follow-up.
How the number is computed
The transcript is split into words. That count is divided by the duration in minutes. A 90-second answer with 180 words is 120 words per minute. Fillers count as words, which is fair: “um” takes time the listener spends. If you paste a transcript, set the seconds to the time you actually spoke, not to a guess that makes the pace look calm.
Very short clips lie. Ten words in eight seconds can look like a normal pace or a frantic one depending on a single breath. Give the answer a real length, at least half a minute, before you trust the number.
If you are fast
Fast usually means you are afraid of the pause, so you pack the next clause in before the last one lands. Pick one number in the answer and leave a beat after it. You do not need to slow every word. You need the important word to have air. The pause measurement will show whether that beat existed.
If you are slow
Slow, under about 110, often means you are restating the question or circling a sentence you do not want to finish. Say the verb. “I rolled it back” is faster and clearer than “I think what we kind of ended up doing was.” The filler counter and the pace number move together more often than people expect. Cutting fillers raises the pace without you talking faster.
FAQ
Is 180 words per minute too fast?
For an interview answer, yes. It can work in a casual story. It is hard to follow when the content is a date, a system, or a person’s name. Aim back toward 160.
Does the pace include filler words?
Yes. They are words you said. Removing them is part of how the pace becomes easier to listen to, not only how the filler count drops.
What pace should I use for system design?
About 110 to 150. You are leaving room for the other person to stop you. The system design type on the timer uses that band.