3GPP-accurate calculators.
No fluff before the answer.
38 free tools for 5G NR, LTE, and RF planning. Open a tool, get the answer, move on. No signup, no ads, no ten-paragraph blog post in front of the calculator.
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RF
8 toolsNR-ARFCN Calculator
Convert between 5G NR ARFCN and frequency (MHz) for FR1 and FR2 per 3GPP TS 38.104.
LTE EARFCN Converter
Map LTE EARFCN values to uplink/downlink frequencies and bands per TS 36.101.
Link Budget Calculator
Compute EIRP, RX sensitivity, MAPL and cell radius for 5G / LTE RF planning.
Frequency → NR-ARFCN
Reverse lookup: enter a frequency in MHz and get the 5G NR-ARFCN plus matching band (FR1 / FR2) per TS 38.104.
Frequency → EARFCN
Reverse lookup: enter an LTE frequency and get the EARFCN, band, and DL/UL direction per TS 36.101.
5G NR Band Reference
Complete 5G NR band table: frequencies, bandwidth, duplex mode, and deployment status across FR1 and FR2.
LTE Band Reference
Complete LTE band table with EARFCN ranges, DL/UL frequencies, bandwidth and FDD / TDD duplex mode.
5G NR Frequency Explorer
Interactive spectrum explorer showing 5G NR band allocations across FR1 and FR2, overlaps, and duplex modes.
PHY
9 tools5G Throughput Calculator
Compute peak PDSCH/PUSCH throughput from bandwidth, numerology, layers, modulation, and code rate.
5G Numerology Planner
Explore subcarrier spacing, slot length, and symbols per slot for every 5G NR numerology.
PRACH Config Index Lookup
Look up PRACH configuration index (0–255) to find preamble format, periodicity and occasions.
LTE Throughput Calculator
Calculate LTE peak throughput from bandwidth, MIMO layers, modulation, UE category and carrier aggregation.
DMRS Pattern Visualizer
Visualize 5G NR DMRS patterns for PDSCH/PUSCH — Type 1 / Type 2, additional positions and CDM groups on the RE grid.
RE Mapping Visualizer
Interactive resource element mapping of PDSCH, DMRS, PTRS and CSI-RS inside the 5G NR PRB grid.
CSI-RS Configuration
Configure 5G NR CSI-RS resources: port mapping, frequency density, and periodicity / offset settings.
OFDM Signal Generator
Generate and visualize an OFDM waveform — configurable FFT size, CP length, modulation and subcarriers.
4G vs 5G Resource Allocation
Compare RB mapping, BWP, and slot-level scheduling between LTE and 5G NR side by side.
RF Planning
1 toolProcedures
3 tools5G Random Access Simulator
Step through the 5G NR RACH procedure: MSG1 preamble, MSG2 RAR, MSG3 scheduled TX and MSG4 contention resolution.
Cell Search Procedure
Visualize the 5G NR initial cell search: PSS / SSS detection, PBCH decoding, MIB and SIB1 acquisition.
5G Auth Flow Visualizer
Interactive message-sequence diagrams for 5G-AKA and EAP-AKA′ primary authentication and registration.
Architecture
2 toolsVendor Parser
6 toolsEricsson KGET Parser
Paste Ericsson gNodeB/BSC KGET config dumps and explore managed objects as a searchable tree. 100% browser-side.
Huawei MML Script Parser
Parse Huawei MML (ADD / MOD / RMV / LST / SET) scripts into a structured, filterable command table.
Nokia RAML Config Viewer
Load Nokia NetAct RAML XML exports and browse managed objects by distinguished name hierarchy.
Ericsson DCGM Analyzer
Paste Ericsson counter dumps and get computed KPIs (ERAB SR, RRC SR, HO SR) plus raw counter tables.
Huawei Counter Parser
Import Huawei PM counter CSV/TSV exports, compute per-column stats, and flag statistical outliers.
Huawei LTE PCI Analyzer
Analyse PCI allocation from Huawei LTE exports — detect collisions, confusion, and mod-3 / mod-6 conflicts.
Reference
5 toolsSSB Beam Planner
Visualize 5G NR SSB beam sweeping — beam count (L), sweep timing, and sector coverage for FR1 / FR2.
5QI Reference Lookup
Searchable table of all standardized 5QIs from 3GPP TS 23.501: priority, PDB, PER and example services.
3GPP Spec Lookup
Instantly find any 3GPP TS / TR spec — search by number, title, working group, or topic keyword.
PLMN Decoder
Decode MCC / MNC into country and operator, or encode a PLMN ID in decimal, hex and BCD NAS format.
IMSI / SUPI / SUCI Parser
Parse IMSI, SUPI or SUCI strings: MCC, MNC, MSIN, routing indicator and protection scheme — 100% client-side.
Utility
5 toolsdBm ↔ Watt Converter
Instant conversion between dBm, dBW, mW and Watts for RF power calculations.
TA to Distance Calculator
Convert 5G NR Timing Advance to UE-gNB distance for all numerologies (15 / 30 / 60 / 120 kHz).
Wavelength ↔ Frequency
Convert between wavelength and frequency across Hz, kHz, MHz, GHz and metric units.
SUPI / SUCI Analyzer
Decode 5G subscriber identifiers — SUPI, SUCI and 5G-GUTI — and see the protection scheme in action.
3GPP Specification Helper
Search and filter 3GPP TS / TR specification numbers, titles, and direct links — fast reference for every engineer.
Why engineers use 5G/6G Academy tools
Every calculator implements the exact formulas from the relevant 3GPP specification — not a handwavy approximation. Spec references are listed on every tool page.
Open the tool, get the result, copy the value. No walls, no popups. Built by working telecom engineers who were tired of sketchy calculator sites.
Want to understand why a TA unit is 78 m at 15 kHz SCS, or why PCI mod-3 collisions kill SINR? Our 5G/6G Academy curriculum explains every value.
38 tools live now · 1 more rolling out this week.
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