# RF Wireless World

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## LTE EARFCN to Frequency Conversion

This tutorial section on LTE basics covers following sub topics:
Main page  features  terminologies  Frame  TDD FDD  Channel types  PHY  stack  throughput  VoLTE  CA   cell search  network entry  Timers  PSS vs SSS  Security   LTE Bands  EARFCN  Hotspot  router

LTE EARFCN stands for E-UTRA Absolute Radio Frequency Channel Number. The page describes LTE EARFCN equation and table for calculation of downlink EARFCN(NDL) and uplink EARFCN(NUL). It provides link to LTE EARFCN calculator which is very useful for LTE EARFCN to frequency and vice versa conversion.

EARFCN number is within range 0 to 65535 and equation between LTE carrier frequency(MHz) and EARFCN is mentioned below.

### LTE EARFCN Equation

Fdownlink = FDL_Low + 0.1 (NDL - NDL_Offset)

Fuplink = FUL_Low + 0.1 (NUL - NUL_Offset)

Where,
NDL_Offset is offset used to calculate downlink EARFCN
NUL_Offset is offset used to calculate uplink EARFCN

Following table mentions EARFCN to frequency conversion for both the downlink and uplink direction for LTE network. One can also use EARFCN calculator to avoid self calculation.

(NUL)
1 2110 0 0-599 1920 18000 18000-
18599
2 1930 600 600-1199 1850 18600 18600-
19199
3 1805 1200 1200-1949 1710 19200 19200-
19949
4 2110 1950 1950-2399 1710 19950 19950-
20399
5 869 2400 2400-2649 824 20400 20400-
20649
6 875 2650 2650-2749 830 20650 20650-
20749
7 2620 2750 2750-3449 2500 20750 20750-
21449
8 925 3450 3450-3799 880 21450 21450-
21799
9 1844.9 3800 3800-4149 1749.9 21800 21800-
22149
10 2110 4150 4150-4749 1710 22150 22150-
22749
11 1475.9 4750 4750-4999 1427.9 22750 22750-
22999
12 728 5000 5000-5179 698 23000 23000-
23179
13 746 5180 5180-5279 777 23180 23180-
23279
14 758 5280 5280-5379 788 23280 23280-
23379

### EARFCN Calculator

Following is the ultimate LTE EARFCN to Frequency conversion calculator.

LTE Downlink Frequency in MHz (Output1):