Manage Call Center Operations With Precise Data.

Trust the math, not guesses. Calculate your staffing requirements and service levels with the Erlang C algorithm, or contact us for more complex scenarios.

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Efficiency Gain
24.5%
Target SL
80%

Call Center Planning Tool

Calculate required agents based on call volume and service goals.

FCS ERLANG C ENGINE v1.4

Data Input

AHT (Average Handle Time):180 sec
80%
85%
Required Agents
0Agents
Raw Agents: 0
Shrinkage: 10%
Service Level
0.0%Target: 80%
Avg Speed of Answer
0.0sec
Occupancy Rate:0.0%

Scenario Analysis (What-If)

Raw AgentsRequired AgentsService LevelAvg Speed of AnswerOccupancy Rate

Calculation Note: This tool uses the Erlang C formula, the industry standard for call centers.

SCIENTIFIC APPROACH

Why Erlang C?

Planning by "instinct" in call centers leads either to excessive personnel costs or (worse) loss of customers.

Erlang C has been the gold standard of the telecommunications world for over 100 years. This mathematical model predicts the behavior of waiting customers and the required resources with 99% accuracy in a world where calls arrive randomly (Poisson distribution).

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Cost Optimization

Balances workforce planning, preventing unnecessary shifts and idle time costs.

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Customer Satisfaction

Maintains target Service Level (SL) while keeping wait times and abandon rates to a minimum.

? Common Terms

AHT (Average Handle Time)

Total average time spent handling a call, including talk time and after-call work (ACW).

Service Level

E.g., "80% of calls answered in 20 seconds." A quality standard.

Shrinkage

Time employees are paid but not handling calls (breaks, training, etc.).

Scale Your Call Center Operations With Our Expert Team

Meet our expert FCS team for multi-skill management, shift scheduling, and AI-powered demand forecasting.

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