Estimate file sizes before creation. Calculate storage needs. Plan bandwidth requirements. All tools run locally in your browser.
Last reviewed on April 23, 2026
Estimate video file sizes based on resolution, bitrate, duration, and codec. Supports 720p to 8K.
Calculate audio file sizes for MP3, WAV, FLAC, and AAC formats based on bitrate and duration.
Estimate image file sizes from resolution, color depth, and format (RAW, JPEG, PNG, WebP).
Calculate how many photos, songs, or videos fit on a given drive size. Plan your storage needs.
Calculate upload/download time for files at different connection speeds. Estimate data usage.
See how many photos, songs, videos or documents fit on any USB stick, SD card or hard drive.
Turn bitrate and recording hours into GB. Built for security cameras, screen capture and long audio sessions.
How many songs fit per gigabyte, by format and bitrate — from 128 kbps MP3 to lossless FLAC and WAV.
Recording 1080p gameplay at 60fps with OBS (15 Mbps bitrate) produces approximately 6.75 GB per hour.
A 60-minute podcast in stereo MP3 at 128 kbps results in a file size of approximately 58 MB.
1-hour Zoom meeting recording at 720p typically produces a file of 400-600 MB.
100 RAW photos from a 24MP camera will require approximately 2.5-4 GB of storage.
Formula: File Size = Bitrate × Duration × 0.0075
Where bitrate is in Mbps and result is in MB. Factor in audio track separately (typically adds 10-50 MB per hour).
Formula: File Size = Bitrate × Duration ÷ 8
Where bitrate is in kbps, duration in seconds, result in KB. Divide by 1024 for MB.
Uncompressed: Width × Height × Color Depth ÷ 8
JPEG typically compresses to 10-15% of uncompressed size. PNG varies based on content complexity.
File size calculations depend on multiple factors that vary by media type:
Our calculators use industry-standard formulas and real-world compression ratios to provide accurate estimates.