Audio File Size Calculator
Estimate uncompressed audio file size from bit depth, sample rate, duration, and channel count with bitrate and storage breakdown.
How Audio File Size Is Calculated
Uncompressed audio file size depends on bit depth, sample rate, duration, and channel count. Bit rate equals bit depth times sample rate times channels. File size equals bit rate times duration divided by 8.
Audio File Size Formula
$$ \text{file size} = \frac{\text{bit depth} \times \text{sample rate} \times \text{duration} \times \text{channels}}{8} $$CD-quality audio uses 16-bit depth, 44.1 kHz sample rate, and 2 channels (stereo). A 5-minute track at these settings is about 52.9 MB uncompressed.
Related tools: Bandwidth Calculator and MP3 to Base64 Converter.
Frequently Asked Questions
What bit depth should I use?
16-bit is standard for CD quality. 24-bit is common in professional recording. 8-bit is used for low-quality voice recordings.
How big is a 3-minute song at CD quality?
At 16-bit, 44.1 kHz stereo, a 3-minute track is about 31.7 MB uncompressed. Compressed formats like MP3 are much smaller.
Does this include compression?
No. This calculator estimates uncompressed PCM audio (WAV/AIFF). MP3, AAC, and FLAC use compression and produce smaller files.
What is bit rate?
Bit rate is bits processed per second. For uncompressed audio: bit rate = bit depth x sample rate x channels. CD stereo is about 1,411 kbps.
Related Tools
Plasma Osmolality Calculator
Mars Sign Calculator
Central Angle Calculator
Draw Memento Mori Calendar
Keyboard Mileage Calculator
Square Feet to Cubic Yards Calculator
Convert Time Between Countries
Oblique Triangle Calculator
Impedance Matching Calculator
Sock Size Calculator
Power Factor Calculator
Particles Velocity Calculator
Amdahl's Law Calculator
HMAC Generator
Height Percentile Calculator
Optimal Price
Thermal Conductivity Calculator
Perimeter of a Triangle with Fractions Calculator
Find Incomplete CSV Records
US Income Percentile
Recent Visits
Finance Calc Kit
Focused calculators on Finance Calc Kit for loans, compounding investments, contractor tax estimates, and reti...
Explore Finance Calc Kit