Estimate how much disk space your video footage will need. Pick your resolution, frame rate and bitrate, then get a full breakdown with buffer and backup calculations.
Recording settings
Include audio
15%
Ctrl+Enter to calculate (Cmd+Enter on Mac)
Example Output
Results
138.00 GB
Total storage needed (15% buffer included)
Per hour
40.14 GB
Raw total
120.43 GB
Breakdown
Video
135.00 GB
Audio
0.43 GB
Buffer (15%)
18.07 GB
135.00 GB video + 0.43 GB audio + 18.07 GB buffer
Example: 1 TB drive with 4K footage at 100 Mbps, filming 3 hours per week. Enter your own values and click Calculate to see your personalised result.
Results
0 GB
Total storage needed
Per hour
0 GB
Raw total
0 GB
Breakdown
Storage shown in decimal GB (1 GB = 1,000,000,000 bytes), which matches how drive manufacturers label capacity. Your OS may report slightly less usable space.
How to Use
Step 1
Pick your recording settings
Select your resolution and frame rate, or use a preset. The bitrate auto-fills with a sensible default for your resolution, but you can override it to match your camera settings.
Step 2
Enter footage duration
Type the total hours of footage you plan to record. Toggle audio on or off and adjust the audio bitrate if needed. Decimals work too (e.g. 1.5 for 90 minutes).
Step 3
Review your storage needs
Hit Calculate to see a per-hour rate, raw total, and final total with your buffer and backup copies factored in. The breakdown shows exactly where the space goes.