Logarithm Calculator

Calculate logarithms with any base, natural log, log10, and log2.

log base

(

value

)

log10(100)

2.000000

ln(100)

4.605170

log₁₀(100)

2.000000

log₂(100)

6.643856

About Logarithm Calculator

This is a free, fast, and fully client-side logarithm calculator tool. All processing is done locally within your browser to ensure maximum privacy and security. No data is sent to our servers. Bookmark this page for quick access to ad-free, high-performance SEO and developer utilities.