LPM Formula:
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Letters Per Minute (LPM) is a measure of typing speed that calculates how many individual letters are typed in one minute. It provides a more granular measurement than words per minute (WPM) for precise typing assessment.
The calculator uses the simple formula:
Where:
Explanation: The calculation divides the total letters typed by the time taken to type them, giving the average letters per minute.
Details: LPM measurement is useful for keyboarding tests, typing skill assessment, and comparing typing efficiency across different languages or character sets.
Tips: Enter the total number of letters typed and the time taken in minutes. All values must be valid (letters > 0, time > 0).
Q1: How does LPM differ from WPM?
A: WPM counts words (typically 5 characters = 1 word), while LPM counts each individual character, providing more precise measurement.
Q2: What is a good LPM score?
A: Average LPM ranges from 150-300 (30-60 WPM). Professional typists often exceed 350 LPM (70 WPM).
Q3: Should spaces be counted in LPM?
A: This depends on the standard being used. Our calculator counts all characters including spaces unless specified otherwise.
Q4: How accurate is LPM measurement?
A: Accuracy depends on precise timing and correct character counting. For best results, use dedicated typing test software.
Q5: Can LPM be converted to WPM?
A: Yes, divide LPM by 5 (standard word length) to get approximate WPM.