Typing speed is measured in words per minute, where a “word” is five characters including spaces. That convention exists so that long words and short words count fairly.
Most adults who have never trained deliberately type somewhere between 25 and 40 words per minute. Around 40 WPM is comfortable for general office work. Administrative and clerical roles commonly ask for 45 to 60. Data entry, transcription and support roles often want 60 to 80, sometimes with a keystrokes-per-hour figure instead. Above 80 WPM is genuinely fast, and past about 100 the limiting factor is usually reading speed rather than finger speed.
Speed on its own is not the goal. A typist at 55 WPM and 98% accuracy produces cleaner work, faster, than one at 70 WPM and 88%, because every uncorrected error has to be found and fixed later. Build accuracy first, hold it steady, and let the speed rise underneath it.