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Published On: 10th Feb 2023 07:00 - Modified: 22nd Jul 2026
The Erlang Calculator is a tool that allows you to work out how many agents you will need.
You just need to enter your call volume and the service level that you would like to achieve.
The calculator then looks at the agent capacity you would need to achieve the service level.
If you are looking for an easy-to-use Erlang Calculator, you can use Call Centre Helper’s New Excel Based Erlang Calculator – with Maximum Occupancy for free.
For more great articles on Erlang, read these next:
Robyn Coppell has worked as Digital Content Manager for Call Center Helper since 2021. After University her first job was in a contact centre and has stayed in this space ever since.
She has experience of contact centre operational management, software systems, css and php coding. She edits a lot of the guest content that is published on Call Centre Helper.
Connect with Robyn on LinkedIn
Read more by Robyn CoppellReviewed by: Megan Jones
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5th October 2026
6th October 2026
How CX Leaders Can Govern AI Agent Quality Across Channels – Webinar
