Wireless Calculators
27 free wireless calculators in Networking. The first 4 have a full write-up: the method, a worked example and questions specific to that calculator.
- Fresnel ZoneCalculate the Fresnel zone radius and clearance needed for a line-of-sight wireless link.
- WiFi CapacityCalculate the number of concurrent devices a WiFi network can support at target throughput.
- WiFi Channel CalculatorFind non-overlapping WiFi channels and center frequencies for 2.4GHz and 5GHz bands.
- WiFi CoverageEstimate WiFi access point coverage radius and area based on power and environment.
- 2.4 GHz Channel PlannerPlan a 2.4 GHz deployment against the only three non-overlapping channels, and see the co-channel contention it creates.
- 5 GHz Channel PlannerCount the non-overlapping 5 GHz channels available at your chosen width with or without DFS, and check the reuse it allows.
- 6 GHz Wi-Fi PlannerPlan 6 GHz Wi-Fi 6E/7: channel count for your regulatory domain, LPI or standard-power EIRP and the resulting cell radius.
- Access Point Density CalculatorSize an access point count from both coverage area and client capacity, and see which of the two actually drives the design.
- Access Point PlanningCalculate the number of access points needed to cover an area with target capacity.
- Beamforming Gain CalculatorWork out array gain, total antenna gain, directivity from beamwidth and the range multiplier a phased array delivers.
- Channel Width CalculatorTrade Wi-Fi channel width against PHY rate, noise-floor penalty and how many non-overlapping channels remain for reuse.
- Client Density CalculatorCheck clients per radio and per access point against your design target, and see how much spare association capacity is left.
- Coverage Heatmap EstimatorEstimate indoor cell radius, cell area and AP count from EIRP, target RSSI, wall losses and a path-loss exponent.
- Frequency ConverterConvert radio frequencies between Hz, kHz, MHz and GHz and calculate wavelength.
- Mesh Wi-Fi CalculatorEstimate throughput at the edge of a wireless mesh after per-hop backhaul loss, for shared-radio and dedicated-backhaul designs.
- MU-MIMO Capacity CalculatorSize the multi-user MIMO gain from AP and client spatial streams, including group size, sounding overhead and stream utilisation.
- OFDMA Efficiency CalculatorCompare 802.11ax OFDMA against single-user transmissions: resource units per channel, users per TXOP and the airtime saved.
- Point-to-Multipoint PlannerPlan a sectorised point-to-multipoint site: subscribers per sector, offered load, azimuth coverage and the subscriber ceiling.
- Point-to-Point Link CalculatorClose a point-to-point wireless link: free-space path loss, received signal level, EIRP and the fade margin left over.
- Roaming Capacity CalculatorWork out roam events per second, concurrent roams and RADIUS authentication load, with and without 802.11r fast transition.
- RSSI CalculatorConvert between RSSI dBm values and signal quality percentage for wireless links.
- Signal StrengthCalculate received wireless signal strength from transmit power, distance and path loss.
- SNR CalculatorCalculate the signal-to-noise ratio from signal and noise power levels.
- Wireless Health Score CalculatorScore a Wi-Fi estate across coverage, SNR, channel utilisation, retries, roaming and headroom, and find the weakest dimension.
- Wireless Interference CalculatorTurn signal, co-channel, adjacent-channel and noise-floor levels into SNR, SINR and the modulation the link can actually hold.
- Wireless Link BudgetCalculate the complete link budget for a wireless link including gains and losses.
- Wireless Throughput CalculatorModel real Wi-Fi cell throughput with airtime fairness, so slow legacy clients drag the whole cell down the way they do in practice.