Measure signal power, noise, airtime load, and losses. See estimated throughput, stability, and user impact. Plan smarter channels and tune wireless networks more effectively.
Enter your wireless measurements and current radio conditions.
This chart shows how estimated throughput changes as airtime utilization rises.
Use these sample values to test and compare wireless scenarios.
| Scenario | Band | Width | RSSI | Noise | PHY | Airtime | Retries | Loss | Latency | Clients |
|---|---|---|---|---|---|---|---|---|---|---|
| Quiet office | 5 GHz | 80 MHz | -55 dBm | -95 dBm | 1200 Mbps | 28% | 4% | 0.5% | 12 ms | 10 |
| Busy classroom | 5 GHz | 40 MHz | -63 dBm | -91 dBm | 600 Mbps | 72% | 15% | 2.8% | 34 ms | 34 |
| Warehouse edge | 2.4 GHz | 20 MHz | -74 dBm | -92 dBm | 144 Mbps | 48% | 11% | 1.9% | 29 ms | 18 |
| Modern lab | 6 GHz | 160 MHz | -57 dBm | -96 dBm | 2400 Mbps | 36% | 3% | 0.4% | 9 ms | 8 |
| Crowded apartment | 2.4 GHz | 40 MHz | -67 dBm | -87 dBm | 300 Mbps | 81% | 19% | 4.1% | 41 ms | 21 |
SNR = RSSI − Noise Floor
Signal Score normalizes RSSI from weak to excellent.
SNR Score normalizes radio cleanliness and interference resistance.
Latency Score compares average latency against the chosen workload target.
Estimated Throughput = PHY Rate × Band Efficiency × Channel Factor × Stream Factor × Quality Factor × Utilization Factor × Retry Factor × Loss Factor × Contention Factor
Stability uses weighted SNR, retries, packet loss, latency, and airtime conditions to estimate connection consistency.
Readiness blends coverage margin, latency, retries, and loss to show how suitable the link is for the selected profile.
These formulas are practical estimators. Real throughput also depends on client radios, access point design, protocols, roaming, and upstream bottlenecks.
RSSI is received signal strength. Less negative values are stronger. Around -50 dBm is excellent, while -75 dBm is usually weak for demanding traffic.
SNR compares useful signal against background noise. Higher SNR improves modulation reliability, reduces retries, and generally increases real throughput.
PHY rate is the raw radio link speed. Real traffic loses capacity to management overhead, contention, retransmissions, encryption, protocol framing, and client limitations.
Airtime utilization measures how busy the channel is. Higher values mean fewer transmission opportunities and usually lower performance for every client.
No. Wider channels can raise peak speed, but they also consume more spectrum. In crowded environments, narrower channels often reduce interference and improve stability.
Use cleaner bands for latency-sensitive or high-throughput workloads. They usually offer less interference, more channel options, and better performance than crowded 2.4 GHz space.
Retries rise when signal is weak, interference is heavy, roaming is unstable, or clients struggle with modulation changes. Congestion can also increase retransmissions.
No. It is a planning and diagnostic aid. Full surveys also require spectrum analysis, roaming tests, floor maps, coverage validation, and device-specific performance checks.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.