Video File Size Estimator
Estimate video file size based on duration, bitrate, and resolution
Input
Mbps
File Size (GB)
0.73 GB
File Size (MB)
750 MB
Formula
File Size = Duration (s) × Bitrate (Mbps) ÷ 8. Duration = Minutes × 60 + Seconds.
Calculation Details: 600s × 10 Mbps ÷ 8 = 750 MB
FAQ
How to estimate video file size?
File Size = Duration (seconds) × Bitrate (Mbps) ÷ 8. For 10 minutes at 10 Mbps: 600 × 10 ÷ 8 = 750 MB ≈ 0.73 GB.
What bitrate should I use?
Recommended bitrates: 1080p at 8-15 Mbps, 2K at 16-30 Mbps, 4K at 35-60 Mbps, 8K at 100+ Mbps. Lower bitrates save space but reduce quality.
Does video container format affect file size?
Container format (MP4, MOV, MKV) has minimal impact on size. Codec, bitrate, and resolution are the main factors. H.265/HEVC can halve file size compared to H.264 at similar quality.