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.
Call Volume & Timing
Optional: Shrinkage
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