Multi-Tool For NetworkTelecom Calculator: EARFCN, NR-ARFCN, Link Budget, Coverage
Free online telecom calculators: EARFCN / NR-ARFCN / UARFCN / ARFCN to frequency, LTE/5G coverage radius, microwave and fiber link budgets.
Open the tool → See all toolsA set of instant calculators for RF and transmission engineers. Everything runs in your browser – no sign-up, no data sent anywhere.
What it does
- EARFCN, NR-ARFCN, UARFCN and GSM ARFCN ↔ frequency with band and duplex details
- LTE / 5G NR coverage radius from a DL + UL link budget (Hata, COST-231, 3GPP 38.901)
- Microwave LOS link budget: FSPL, RSL, fade margin, Fresnel zone, earth bulge, required clearance
- Fiber optic power budget: losses, margin, maximum distance, receiver overload warning
- Distance, azimuth and midpoint between two coordinates (decimal or DMS)
- dBm ↔ mW ↔ W ↔ dBW converter
How it works
FAQ
Is my data uploaded to a server?
No. Files are processed in your browser (or by the optional helper app on your own computer). Nothing is stored on our servers.
Do I need to install anything?
No – it is a web app. You can optionally install it as a desktop app from the browser. A small helper app is only needed for tools that must reach your network (ping, port check, auto login).
Is it really free?
Yes – this tool is free to use without an account.
Related tools
EARFCN & NR-ARFCN to Frequency Calculator
Convert LTE EARFCN, 5G NR-ARFCN, WCDMA UARFCN and GSM ARFCN to DL/UL frequency and band – free, instant, in your browser.
FreeLTE / 5G NR Coverage Radius & Site Count Calculator
Estimate LTE and 5G NR cell radius from a downlink RSRP and uplink link budget, inter-site distance and number of sites for an area.
FreeMicrowave Link Budget & Fresnel Zone Calculator
Free microwave LOS link budget: free-space path loss, received level, fade margin, Fresnel radius, earth bulge and required clearance.
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