Erlang and Grade of Service Calculator

Erlang and Grade of Service Calculator calculator can be used for calculating the required capacity of a telecommunications system based on the number of calls and the desired grade of service.

Input Parameters

Calculation Results

Calculation Formula

Erlang = (Call Rate * Call Duration) / 60

Where:
Erlang: The total traffic load in Erlangs
Call Rate: Average number of calls per hour
Call Duration: Average call duration in minutes

Results

Erlang Traffic Load:

0.00

Required Capacity:

0.00

Erlang and Grade of Service Calculator Calculator Usage Guide

Learn how to use the Erlang and Grade of Service Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the average call rate in calls per hour.
  2. Enter the average call duration in minutes.
  3. Enter the desired grade of service as a percentage.
  4. Click the "Calculate" button to get the results.

Understanding the Results

The calculator provides two main results:

  • Erlang Traffic Load: This is the total traffic load in Erlangs, which represents the total number of calls of a given duration that would be handled by the system if all calls were of the same duration.
  • Required Capacity: This is the required capacity of the system to handle the given traffic load with the desired grade of service.

Grade of Service

The grade of service (GoS) is a measure of the quality of service in telecommunications. It is the probability that a call will be blocked due to the system being busy. A lower grade of service means a higher probability of calls being blocked.