Audio File Size Calculator
Works out how big an audio file or album will be.
File size
—
Share sends a link that reopens these numbers. Copy details pastes the full breakdown as a list.
In binary units (powers of 1,024) —
Per minute —
The formula
size = bitrate × length ÷ 8
Tags and cover art add a little more.
What to watch out for
Variable-bitrate files only match if you enter their average bitrate.
Frequently Asked Questions
How big is a 4-minute track at 192 kbit/s?
5.76 MB.
How big is a 4-minute track at 320 kbit/s?
9.60 MB.