LN Function in Excel: Syntax, Examples and Free Practice
LN is an Excel Math & Trig function. Returns the natural logarithm of a number.
LN syntax
=LN(number)
Arguments
number: A number to use in the calculation
When to use LN
LN is used in financial models and engineering-style calculations where precise numeric work is needed.
Practice LN online, free
Open the live Excel-style spreadsheet and try LN yourself. No Excel install or sign-up needed to start.
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Frequently asked questions
What does the LN function do in Excel?
Returns the natural logarithm of a number.
What is the syntax of LN in Excel?
The syntax is =LN(number). number: A number to use in the calculation.
Where can I practice LN online for free?
Open the free live spreadsheet on Cellgrids and try LN yourself. No Excel install is needed and you can start without signing up.
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