Must-Know Common Call Center Metrics

Highlights: The Most Important Common Call Center Metrics

  • 1. Average Handle Time (AHT)
  • 2. First Call Resolution (FCR)
  • 3. Call Abandonment Rate
  • 4. Service Level
  • 5. Occupancy Rate
  • 6. Average Speed of Answer (ASA)
  • 7. Customer Satisfaction Score (CSAT)
  • 8. Net Promoter Score (NPS)
  • 9. Agent Attrition Rate
  • 10. Schedule Adherence
  • 11. Call Quality
  • 12. Agent Utilization

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In today’s competitive business landscape, call centers play a pivotal role in determining the success of a company by effectively managing customer interactions and ensuring customer satisfaction. Consequently, it is essential to monitor and measure the performance of call centers to continually improve their efficiency and, subsequently, the overall customer experience. This can be achieved through a careful analysis of commonly used call center metrics. In this blog post, we will delve into the most important call center metrics that provide valuable insights into agent productivity, operational efficiency, and customer satisfaction. Understanding and tracking these metrics will empower your organization to make data-driven decisions, optimize processes, and ultimately, thrive in the ever-changing world of customer service.

Common Call Center Metrics You Should Know

1. Average Handle Time (AHT)

The average duration of a call, including talk time, hold time, and any after-call work. It’s used to gauge the efficiency of agents and overall call center performance.

2. First Call Resolution (FCR)

The percentage of calls resolved by an agent during the initial interaction with the customer. High FCR rates indicate effective problem resolution and increased customer satisfaction.

3. Call Abandonment Rate

The percentage of calls that are disconnected by the customer before reaching an agent. High abandonment rates may signal long wait times or customer dissatisfaction.

4. Service Level

The percentage of calls answered within a predefined time frame (e.g., 80% of calls answered within 20 seconds). A high service level indicates good accessibility and low wait times for customers.

5. Occupancy Rate

The percentage of an agent’s time spent handling calls and related tasks. High occupancy rates may indicate overworked agents, while low rates suggest agents may not be used optimally.

6. Average Speed of Answer (ASA)

The average time it takes for a call to be answered by an agent. Lower ASA indicates faster response times and better customer service.

7. Customer Satisfaction Score (CSAT)

A measure of how satisfied customers are with the service they receive. Typically measured through surveys, CSAT can help assess the overall performance of a call center.

8. Net Promoter Score (NPS)

A metric that gauges customer loyalty by asking whether customers would recommend the company to others. A high NPS indicates satisfied customers and potential growth through positive word of mouth.

9. Agent Attrition Rate

The rate at which agents leave the call center, either voluntarily or involuntarily. High attrition rates could indicate poor work conditions or poor agent management.

10. Schedule Adherence

The percentage of time agents follow their scheduled work hours, breaks, and other activities. High adherence rates suggest that agents are effectively managed and maintaining the call center’s required staffing levels.

11. Call Quality

A measure of the overall quality of calls, including factors such as clarity, background noise, and connection quality. High call quality ensures a better customer experience.

12. Agent Utilization

The percentage of an agent’s logged-in time that is spent handling calls or completing after-call work. High utilization rates indicate efficient use of agent time and better call center performance.

Common Call Center Metrics Explained

Common Call Center Metrics play a pivotal role in assessing the performance and effectiveness of a call center. Average Handle Time (AHT) helps determine agent efficiency and overall call center productivity. High First Call Resolution (FCR) rates lead to increased customer satisfaction, while low Call Abandonment Rates indicate shorter wait times and improved customer experience. Maintaining a high Service Level ensures that customers are assisted promptly, and appropriate Occupancy Rates strike a balance between agent workload and optimal usage. Monitoring Average Speed of Answer (ASA) aids in prompt customer service and response times. Both the Customer Satisfaction Score (CSAT) and Net Promoter Score (NPS) provide valuable insights into customer contentment and loyalty.

A low Agent Attrition Rate reflects effective management and positive work conditions, while high Schedule Adherence levels demonstrate proper staffing and agent management. Finally, Call Quality and Agent Utilization rates are essential for delivering a superior customer experience and maximizing the efficiency and performance of a call center.


In summary, understanding and analyzing common call center metrics is an essential aspect of managing a successful call center operation. By tracking metrics such as First Call Resolution, Average Handling Time, Service Level, Agent Occupancy, Cost per Call, and Customer Satisfaction, managers can identify areas for improvement and implement necessary changes to enhance overall performance. Through ongoing monitoring and evaluation, call centers can deliver an exceptional customer experience, improve efficiency, and increase overall profitability. Staying informed and educated about these common call center metrics enables businesses to maintain their competitive edge in the industry and foster long-term growth.



What is Average Handle Time (AHT) and why is it important in call centers?

Average Handle Time (AHT) is the measure of the average time taken to complete a customer interaction, including talk time, hold time, and any follow-up tasks. It is important because it helps determine the efficiency of call center agents and the overall performance of the call center. A shorter AHT generally indicates more efficient handling of calls, leading to higher customer satisfaction and lower operational costs.

How is First Call Resolution (FCR) measured, and what impact does it have on customer satisfaction?

First Call Resolution (FCR) is the percentage of calls resolved during the first interaction with the customer, without the need for follow-ups or callbacks. It is measured by dividing the number of resolved calls on the first try by the total number of calls. A higher FCR rate signifies better customer service, as it directly impacts customer satisfaction by reducing their time and effort spent on resolving issues.

What is the purpose of measuring Service Level and what factors influence it?

Service Level is the percentage of calls answered within a defined timeframe, often used as a benchmark for call center responsiveness. The purpose is to ensure that customers are being attended to promptly, thus improving their overall satisfaction. Factors that influence Service Level include call volume, staffing levels, call routing strategies, and agent efficiency.

How do you calculate Occupancy Rate, and why is it crucial for a call center's performance?

Occupancy Rate is the ratio of the time an agent spends actively handling calls or completing after-call tasks, to their total logged-in time. It is calculated by dividing the total handle time by the total logged-in time, and then multiplying by 100 to get a percentage. A high Occupancy Rate indicates that agents are efficiently utilizing their time, leading to better call handling and optimized staffing levels. However, too high of an occupancy rate can lead to agent burnout, affecting their performance and customer satisfaction.

What is Customer Satisfaction Score (CSAT) and how can call centers use it to improve their service?

Customer Satisfaction Score (CSAT) is a metric that evaluates customers' satisfaction with a specific service or interaction. It is usually obtained using a post-call or post-resolution survey, asking customers to rate their satisfaction on a scale. By tracking CSAT, call centers can identify areas for improvement, understand customer sentiments, and take proactive steps to enhance the quality of their service. A higher CSAT rate generally correlates to better customer retention, loyalty, and potential business growth.

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We have not conducted any studies ourselves. Our article provides a summary of all the statistics and studies available at the time of writing. We are solely presenting a summary, not expressing our own opinion. We have collected all statistics within our internal database. In some cases, we use Artificial Intelligence for formulating the statistics. The articles are updated regularly.

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