RFID Read Range Calculator

Calculate RFID read range based on reader power, tag sensitivity, and antenna gain.

Potencia TX del lector (dBm)

Ganancia de antena (dBi)

Pérdida de cable (dB)

Sensibilidad de la etiqueta (dBm)

Frecuencia (MHz)

Factor de entorno

Alcance de lectura estimado

0.0 m

(0.0 ft)

Fórmula de transmisión de Friis

R = (c / 4πf) × √(EIRP / P_tag) × env_factor

Donde EIRP = P_tx + G_ant - L_cable (en escala lineal)

Preguntas frecuentes

Yes, all tools on RFIDFYI are completely free with no account required. Tools run entirely in your browser (client-side JavaScript) and do not send your data to any server.

All tools are fully responsive and work on smartphones, tablets, and desktop browsers. Calculation and encoding tools work on any device.