All Telecom Calculators
32 free tools for RF and RAN engineers, core network specialists and capacity planners. All formulas follow 3GPP, ITU-R and ITU-T specifications.
RF & RAN
View hub →5G NR-ARFCN Calculator
Convert NR-ARFCN ↔ frequency for all FR1/FR2 bands. DL/UL, FDD/TDD.
3GPP TS 38.104LTE EARFCN Calculator
Convert EARFCN ↔ frequency for all LTE bands. FDD/TDD DL/UL pairs.
3GPP TS 36.101dBm / Power Converter
Convert between dBm, dBW, Watt, mW, µW and power/voltage ratios.
ITU-RLink Budget Calculator
Calculate EIRP, maximum allowable path loss and estimated cell range.
ITU-R P.525Erlang B & C Calculator
Blocking probability (Erlang B) and delay probability (Erlang C) for traffic engineering.
ITU-T E.501Path Loss Calculator
FSPL, Okumura-Hata and COST-231 Hata models for urban, suburban and rural.
Okumura-Hata · COST-231RSRP / RSRQ / RSSI
Convert and classify LTE/NR reference signal power and quality measurements.
3GPP TS 36.133PRB Calculator
Calculate LTE physical resource block count and spectral efficiency per bandwidth.
3GPP TS 36.104Frequency → Band Converter
Identify 4G LTE or 5G NR band from a given downlink or uplink frequency.
3GPPSpectrum Efficiency
Estimate peak throughput from modulation order, MIMO layers and channel bandwidth.
3GPP TS 36.306ARFCN → Frequency
Convert legacy ARFCN ↔ frequency for GSM 900/1800/1900 and WCDMA bands.
3GPP TS 45.005PIM Calculator
Calculate passive intermodulation product frequencies from two transmit carriers.
IEC 62037Open RAN Capacity
Size Open RAN distributed units and fronthaul bandwidth per cell site.
O-RAN AllianceSINR → CQI / MCS
Map SINR to CQI index, MCS and estimated downlink throughput for LTE/NR.
3GPP TS 36.213Cell Radius & Site Count
Estimate cell coverage radius and number of sites from MAPL and propagation model.
ITU-RNoise Figure & Sensitivity
Calculate receiver noise figure, noise floor and minimum detectable signal level.
ITU-R P.372Wavelength Converter
Convert between radio frequency and wavelength; calculate quarter-wave antenna length.
ITU-REIRP / ERP Calculator
Calculate EIRP and ERP from transmitter power, antenna gain and cable/feeder loss.
ITU-R SM.329Core Network
View hub →CGI Decoder / Encoder
Decode Cell Global Identity (CGI) into MCC, MNC, LAC and Cell ID.
3GPP TS 23.003IMSI Decoder / Encoder
Decode IMSI into MCC, MNC and MSIN to identify the subscriber home network.
3GPP TS 23.003TAC / TAI Decoder
Decode Tracking Area Code / Identity into MCC, MNC and TAC for LTE/5G.
3GPP TS 23.003IMEI / TAC Decoder
Decode IMEI into Type Allocation Code (manufacturer/model) and serial number.
GSMA5G Core Slice Dimensioning
Dimension 5G network slices for eMBB, URLLC and mMTC use cases.
3GPP TS 23.501QCI / 5QI Bearer Map
Reference table for QCI (4G) and 5QI (5G) bearer characteristics and priority.
3GPP TS 23.203Capacity Planning
View hub →Subscriber Capacity
Calculate maximum subscriber capacity from PRB utilisation and activity factor.
3GPPRRC Capacity
Dimension RRC connected and idle capacity for LTE eNB or 5G gNB.
3GPP TS 36.331VoLTE Capacity
Calculate simultaneous VoLTE call capacity per cell from codec and PRB settings.
3GPP TS 26.114Signaling Load
Estimate S1/N2 signaling transaction rate from subscriber count and mobility.
3GPP TS 36.413Paging Load
Calculate paging message rate on MME/AMF from subscriber density and TAC area.
3GPP TS 36.300SMS TPS Calculator
Estimate SMS transactions per second on SMSC from subscriber traffic patterns.
3GPP TS 23.040Backhaul Capacity
Size backhaul bandwidth for LTE/5G macro cells by sector throughput and overhead.
ITU-T G.826Network Traffic Forecast
Forecast mobile data traffic growth from 1 to 10 years using CAGR projection.
ITU-R M.2370