VoIP Bandwidth Calculator
Bandwidth from concurrent calls, codec, and overhead.
Inputs
%
Results
Required bandwidth (Mbps)
10.46
Raw bandwidth (Mbps)8.72
Bandwidth per call (kbps)174.4
Per call without VAD (kbps)174.4
Payload size (bytes)160
Total packet size (bytes)218
Protocol overhead (%)26.6
Total packets/sec5,000
Estimated MOS (1-5)4.1
Concurrent calls50
How to Use This Calculator
- Enter the number of simultaneous VoIP calls.
- Select the codec: G.711, G.729, G.722, or Opus.
- Set the packet size in milliseconds (20 ms is standard).
- Review the Bandwidth Required per Call and the Total Bandwidth for all concurrent calls.
- Add 20% overhead for packet headers and network jitter buffer when sizing your internet connection.
Ad Placeholder
Related Calculators
Telephone System Sizing Calculator
PBX trunk and extension count from user and traffic data.
Network Redundancy Cost Calculator
Additional cost for N+1 and ring redundancy.
Fiber-to-the-Home Cost Calculator
Per-subscriber FTTH cost from density and distance.
Telecom OSP Design Calculator
Outside plant material from route length and subscriber count.
Ad Placeholder