Capacity Planning Calculator
Free online capacity planning tools for telecom engineers. Covers GSM (2G), UMTS (3G), LTE (4G) and 5G NR — dimension subscriber capacity, RRC connections, VoLTE call capacity, and core network signaling load.
Estimate subscriber capacity using Erlang B (2G), WCDMA pole capacity (3G), or RRC/overbooking model (4G/5G).
Calculate RRC-Connected utilization and maximum subscriber ceiling for LTE eNB and 5G gNB. Includes RRC-Inactive for 5G.
Calculate simultaneous VoLTE calls per cell from PRB allocation, codec (AMR-WB / EVS), SPS, and Erlang B traffic model.
Estimate busy-hour signaling load across generations — MAP/SS7 (2G), RANAP/GTP (3G), NAS/Diameter (4G), HTTP/2 SBI (5G).
Dimension busy-hour paging signaling on BSC (2G), RNC (3G), MME (4G) and AMF (5G). Includes S1-AP / NG-AP message rate to RAN.
Calculate busy-hour SMS transactions per second (TPS) and SMSC utilization from subscriber count and daily MO/MT SMS volume.
Dimension per-site backhaul bandwidth for LTE and 5G NR. Calculates DL/UL requirements from sector count, peak throughput, protocol overhead and redundancy model.
Forecast network traffic growth using CAGR. Calculate doubling time, year-by-year projections, and capacity exhaustion year. Or derive CAGR from two measured data points.
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