Bandwidth Requirements Calculator
Internet speed needed for telehealth video quality.
Inputs
%
%
Results
Per-Session Bandwidth (Mbps)
5.5
Total Required (Mbps)
33
Recommended Line Speed (Mbps)42.9
Upload Needed (Mbps)16.5
Download Needed (Mbps)16.5
Monthly Data Usage (GB)2,552.3
Res Name720p
How to Use This Calculator
- Enter the number of simultaneous video consultation sessions.
- Select the video quality: SD (480p), HD (720p), or Full HD (1080p).
- Set the audio codec type: standard or high-definition audio.
- Review the Bandwidth Per Session and Total Bandwidth Required for all concurrent sessions.
- Add 30% headroom to the calculated bandwidth when sizing your internet connection or network upgrade.
How the result changes with Screen-Share Usage (%)
| Screen-Share Usage (%) | Per-Session Bandwidth (Mbps) | Total Required (Mbps) |
|---|---|---|
| 10 | 5.35 | 32.1 |
| 35 | 5.73 | 34.35 |
| 65 | 6.18 | 37.05 |
| 90 | 6.55 | 39.3 |
What each input means
- Concurrent Video Sessions
- Number of simultaneous telehealth video calls running at the same time.
- Video Resolution
- Video quality level: 0 = 360p, 1 = 480p, 2 = 720p HD, 3 = 1080p Full HD.
- Screen-Share Usage (%)
- Percentage of sessions that use screen-sharing simultaneously (adds ~1.5 Mbps each).
- Protocol Overhead (%)
- TCP/IP, TLS encryption, and TURN relay overhead. Typically 15-25%.
What each result means
- Per-Session Bandwidth (Mbps)
- Raw bandwidth consumed by a single bidirectional video session.
- Total Required (Mbps)
- Total bandwidth needed for all concurrent sessions including overhead.
- Recommended Line Speed (Mbps)
- Recommended internet speed with 30% headroom for jitter and bursts.
- Upload Needed (Mbps)
- Estimated upload bandwidth (roughly half of total for symmetric video).
- Download Needed (Mbps)
- Estimated download bandwidth (roughly half of total for symmetric video).
- Monthly Data Usage (GB)
- Estimated monthly data transfer assuming 8-hour days, 22 business days.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersConcurrent Video Sessions = 5, Video Resolution = 2, Screen-Share Usage (%) = 20, Protocol Overhead (%) = 20 = 4 input(s) provided
- Calculate Per-Session BandwidthPer-Session Bandwidth = videoPerSession + audioPerSession + screenSharePerSession5.5 = 5.5
- Calculate Total RequiredTotal Required = totalRaw * (1 + overheadPct / 100)33 = 33
- Calculate Recommended Line SpeedRecommended Line Speed = totalWithOverhead * 1.342.9 = 42.9
- Calculate Upload NeededUpload Needed = round((totalWithOverhead / 2) * 100) / 10016.5 = 16.5
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