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Cost per Hire Retention Impact Estimator

The Cost per Hire Retention Impact Estimator measures the recruiting-cost value of improving retention among a group of recent hires. It compares a baseline retention rate with a target rate, converts the difference into additional retained employees, and values the avoided replacement burden using cost per hire.

This is useful for recruiting and workforce teams evaluating onboarding, manager support, or early-tenure retention initiatives. The dollar result is not a complete turnover-cost estimate; it isolates the recruiting cost that would otherwise be incurred to replace the additional employees who leave under the baseline scenario.

Calculator inputs

people
USD
%
%
Result
—
Recruiting cost avoided from improved retention
Additional retained hires—
Baseline replacement hires—
Target replacement hires—

1. Set the cohort size
Enter the number of hires whose retention you want to evaluate.

2. Enter cost per hire
Use a recruiting cost figure that reflects the expense of replacing one employee.

3. Add the baseline retention rate
Use the expected or observed percentage of the cohort that remains through your chosen checkpoint.

4. Set the target retention rate
Enter the retention level you want to test for the same checkpoint.

5. Review avoided recruiting cost
The result values the reduction in replacement hires at your cost-per-hire assumption.

Additional retained hires = Hires × (Target retention − Baseline retention)Recruiting cost avoided = Additional retained hires × Cost per hire

Where:

Hires = employees in the cohort
Baseline retention = current or expected retained share, expressed as a decimal
Target retention = comparison retained share, expressed as a decimal
Cost per hire = recruiting cost to replace one departure, in dollars

Assumptions: Both retention rates refer to the same time horizon. The dollar impact includes recruiting cost only and excludes lost productivity, severance, training, and other turnover costs.

What the result means

Use the headline result as a planning estimate based on the inputs and assumptions shown above.

Keep all inputs on a consistent period, cohort, and unit basis when comparing scenarios.

Given:
New hires = 80
Cost per hire = $5,500
Baseline retention = 75%
Target retention = 85%

Calculation:
Additional retained hires = 80 × (0.85 − 0.75) = 8
Recruiting cost avoided = 8 × $5,500 = $44,000

Result:
Recruiting cost avoided = $44,000

Improving retention by 10 percentage points in this cohort reduces expected replacement hiring by eight people.

Can I use a 90-day retention rate?

Yes, as long as both baseline and target rates use the same 90-day checkpoint. The model works with any consistent retention horizon.

What if my target retention is lower than the baseline?

The result becomes negative, showing additional recruiting cost rather than avoided cost. That can be useful for downside planning.

Should cost per hire include onboarding expense?

Use the definition your organization applies consistently. If onboarding is included in your cost-per-hire metric, the result will reflect it; if not, it will not.

Does this estimate the full cost of turnover?

No. It values only the replacement recruiting cost represented by cost per hire, so productivity losses and other separation costs are outside the model.

Why compare retention in percentage points instead of percent change?

The retained headcount difference depends on the direct difference between the two retention rates. For example, moving from 75% to 85% adds 10 retained employees per 100 hires.