Your Erlang Toolkit, Inside Excel

Erlang C, X, Chat and Blending formulas, built into Excel.

The most complete and accurate staffing calculation suite available for Excel.
Start calculating in under 5 minutes.

Erlang C and X calculator Excel

Millisecond performance
No lag, ever. Calculations run locally with no server calls and no waiting, even in large and complex spreadsheets.

Zero data exposure
Not a single byte of data leaves your machine. Runs entirely locally and fully compliant with GDPR and your IT security requirements, even in the most regulated environments.

Seats without strings
One key, centrally managed, covers every Windows machine on your plan. Reassign licenses freely, swap machines anytime, and scale as you grow.

The Complete Erlang Toolkit

Every Erlang formula you need, built as native Excel functions. 

  • Erlang C – The standard inbound model.
    Agents, service levels and wait times from volume, AHT and SLA.
  • Erlang X – Erlang C plus abandonment, patience and redials.
    More accurate for real-world contact centres.
  • Erlang Chat – Built for concurrent chat.
    Handles multiple simultaneous sessions per agent natively.
  • Blending -Inbound and outbound in one model.
    Optimise utilisation across both workstreams.
Screenshot add-in Erlang blending function
Erlang wizard installer preview

Why teams choose CCmath

Built for teams that need reliability, security and control. No dependencies, no surprises.

  • Works without a Microsoft 365 license. Runs in any environment, including locked-down corporate setups that block external add-ins.
  • Custom invoicing available. 
  • Support on every plan. Phone, ticket and email included as standard.
  • One key, fully transferable. Move machines, grow your team, change your setup. Your license moves with you at no extra cost.

License and pricing

All plans are billed annually and include the full function set. Custom invoicing and volume discounts available on request.

One license key, centrally managed by one admin, covers every machine on your plan.

Single

1035/year

For individual analysts

1 user
Team

3125/year

For WFM teams

4 to 10 users
Organisation

5195/year

For planning departments

11 to 25 users
Enterprise

Custom

Tailored to your team

25+ users

Try free for 30 days. No credit card, no automatic billing, no strings attached.

Start in under 5 minutes!

1. 

Create an account
Register at licenses.ccmath.com and verify your email address. 

2. 

Activate your free trial
Log in and activate your free trial from the dashboard. Your 30-day key is generated immediately. No credit card required.

3. 

Download and install
Download the add-in and run the setup wizard (Windows only). Enter your trial key and start calculating!

4. 

Start learning and exploring

Native Erlang for Python and R

If your workflow is built around Python or R, we have you covered. The same Erlang accuracy and ease, in the environment your data team already uses. 

Run Erlang C, X, Chat, and Blending calculations natively in Python or R, with full access to the same formulas available in Excel. 

Ready to run Erlang in Excel?

Get up and running in under 5 minutes. Download the add-in, activate your license, and start calculating.
No configuration, no server setup, no IT ticket required.