Main content

## The change of base formula for logarithms

# Logarithm change of base rule intro

CCSS Math: HSF.LE.A.4

Learn how to rewrite any logarithm using logarithms with a different base. This is very useful for finding logarithms in the calculator!

If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains ***.kastatic.org** and ***.kasandbox.org** are unblocked.

Main content

CCSS Math: HSF.LE.A.4

Learn how to rewrite any logarithm using logarithms with a different base. This is very useful for finding logarithms in the calculator!