Free Online Erlang C Calculator
Instantly calculate your call centre staffing needs - no downloads, no spreadsheets, just fast answers.
Our free online Erlang C calculator gives you accurate staff requirements in seconds. Optimise your service levels, improve forecasting accuracy, and finally ditch the spreadsheet pain - wherever your call centre is in the world.
💡 Free to use. Mobile-friendly. No registration required.
Online Erlang C Calculator
Enter your forecasted call volume, average handling time and service levels below.
Our calculator will instantly show you how many staff you need on the phones—plus headcount after shrinkage. No spreadsheets, no stress.
Our calculator will instantly show you how many staff you need on the phones—plus headcount after shrinkage. No spreadsheets, no stress.
Take Your Call Centre Workforce Planning to the Next Level
While our free Erlang Calculator is a great starting point, ACXPA Members unlock access to the Workforce Optimisation (WFM) Hub — an advanced suite of tools built specifically for real-world contact centre environments.
Model different volumes, AHTs, SLAs and staffing levels in real-time, compare multiple scenarios side-by-side, export charts and data, and make confident, data-led decisions — all in one powerful platform.
Exclusively available to ACXPA Individual Members.
📖 Learn About Erlang
Discover the science behind call centre forecasting, agent numbers, and accurate service levels in plain English.
Read More 🎓 WFM Training Courses
Upskill in forecasting, scheduling, and real-world workforce optimisation—online or onsite.
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