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Curious about your company’s attrition rate? Our Attrition Rate Calculator is here to help! In today’s data-driven world, understanding your organization’s metrics is crucial. Attrition, the departure of employees for various reasons, is a key metric for HR insights.

What is Attrition?

Attrition encompasses voluntary or involuntary departures such as resignations, terminations, retirements, or unfortunate circumstances like death. HR commonly uses this metric to gauge the company’s employee dynamics.

How to Use the Attrition Calculator?

Our flexible calculator allows you to assess attrition over any timeframe—be it a year, quarter, month, or even a day. Simply input the relevant data, and let our tool handle the rest. The annual attrition rate, presented as a percentage, offers insights into employee retention, replacement efficiency, and overall staffing trends.

Calculate Attrition in a Few Steps

  1. Select Your Timeframe: Choose the period you want to analyze.
  2. Input Employee Numbers: Enter the starting and ending employee counts, along with those who left during that period.

⚠️ Our calculator only accepts positive, whole numbers.

Attrition Calculation Formula

The formula used is straightforward:

Attrition=Number of Employees that Left0.5×(Start Employees+End Employees)×100%Attrition=0.5×(Start Employees+End Employees)Number of Employees that Left​×100%

Other Useful Tools

  • Turnover Rate Calculator: Calculate the turnover rate of employees in your organization.
  • Revenue per Employee: Gain insights into average revenue with our calculator.


Stay informed, make data-driven decisions, and understand your organization better with our Attrition Rate Calculator and other useful HR tools.