Base64 Encoding Overhead Penalty

Calculate the exact file size increase when embedding binary assets via Data URIs.

Original Binary Size (KB)

Base64 String Size (KB)

-- KB

Penalty: +33.3%

Base64 encodes 3 bytes of binary data into 4 bytes of ASCII text. This strict mathematical ratio means you always incur a ~33% penalty in payload size when embedding images directly in HTML or JSON.