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EARFCN & NR-ARFCN to Frequency Calculator

Free – no sign-upRuns in your browser

Convert LTE EARFCN, 5G NR-ARFCN, WCDMA UARFCN and GSM ARFCN to DL/UL frequency and band – free, instant, in your browser.

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Type a channel number or a frequency and get the band, downlink / uplink frequencies, duplex spacing and channel raster immediately.

What it does

LTE bands 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 42, 43 (DL and UL EARFCN)
5G NR global raster (FR1 and FR2) with candidate bands n1…n261
WCDMA UARFCN bands I, V, VIII and GSM 900 / DCS 1800 ARFCN
Reverse lookup: frequency → channel number

How it works

1. Load your dataChannel number or frequency (MHz) – drag & drop anywhere on the page; the file type is detected automatically.

2. Review the findingsEvery error and warning is clickable and jumps to the exact row, line or parameter, with a proposed fix.

3. Export & shareExcel, PDF and other exports; run history and before / after comparison are kept on your computer.

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.

EARFCN & NR-ARFCN to Frequency Calculator

What it does

How it works

FAQ

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