Words per Minute Calculator (typing speed WPM & accuracy)

Understanding the words per minute calculator — concept and principle

This calculator measures typing speed in words per minute (WPM) from the characters you typed, the time taken and the mistakes left in. It gives gross and net speed, accuracy and characters per minute. Use it to track practice, compare with a job requirement or check a typing test result.

A "word" is five characters, so 250 characters a minute is 50 words.

How it is calculated

Gross WPM = characters typed ÷ 5 ÷ minutes

Accuracy (%) = (characters − uncorrected errors) ÷ characters × 100

Net WPM = gross WPM × accuracy ÷ 100

Characters include letters, digits, punctuation and spaces.
Characters per minute = characters ÷ minutes; correct characters per minute = (characters − errors) ÷ minutes.

The principle

Words differ in length, so typing tests count "standard words" of five keystrokes, including spaces. That way typing "a" ten times and typing "extraordinary" once are judged fairly. Gross speed shows how fast your fingers move; net speed rewards accuracy by scaling it down for errors you did not fix. Some tests instead subtract errors per minute from the gross speed; when accuracy is high, the two methods give similar results.

Worked example

Default inputs: 1,250 characters in 5 minutes, 8 uncorrected errors.

Gross WPM = 1,250 ÷ 5 ÷ 5 = 50.
Accuracy = (1,250 − 8) ÷ 1,250 = 99.36 %, shown as 99.4 %.
Net WPM = 50 × 0.9936 = 49.7, shown as 50.
Characters per minute = 1,250 ÷ 5 = 250; correct per minute = 1,242 ÷ 5 = 248.4, shown as 248.
Errors per minute = 8 ÷ 5 = 1.6.

Each point is the calculator re-run with only “Time taken (minutes)” changed; the gold point is the default example. Change the inputs above and this chart follows your numbers.

Time taken (minutes)	Net speed (WPM)
1.25	199
2.5	99
3.75	66
5	50
6.25	40
7.5	33
10	25

How to read the result

Speed only matters together with accuracy. Practising slowly and accurately usually raises net speed faster than rushing. Employers who test typing often state both a minimum WPM and a minimum accuracy; check which method their test uses. Copying text is faster than composing your own, so compare like with like.

Common mistakes

Counting words instead of characters, which favours short words.
Leaving out spaces from the character count.
Counting corrected errors; only mistakes left in are subtracted here.
Comparing results from tests of very different lengths.

Keep in mind: Short tests vary a lot from run to run. Average several attempts before drawing conclusions.

Frequently asked questions

What is a good typing speed?

It depends on the job and on accuracy; compare with the requirement you are aiming for rather than a single number.

How is Korean typing speed measured?

Korean tests usually count keystrokes or characters per minute (타수), not five-character words, so the numbers are not directly comparable.

Does a typo I fixed count?

Not in this calculation, but it still cost you time, which lowers the gross speed.

Sources: I. S. MacKenzie, "A note on calculating text entry speed" (York University, 2002) · Typing.com help centre, "How WPM and accuracy are calculated"

Checked 9 Nov 2026. I. S. MacKenzie, “A note on calculating text entry speed” (York University, 2002) — a word is five characters including spaces; Typing.com help centre, “How WPM and accuracy are calculated”; eSkill, “Score calculations for typing” (net WPM = gross WPM × accuracy).

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