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True Cost to Replace a Software Engineer Turnover Calculator

Inputs

Plain-English guide

Terms & how it works

Confused by a field? Read the short definitions here while you use the tool.

  • inputs

    Your numbers

    Estimate turnover cost to replace a software engineer: hiring, ramp, and lost output. Free, instant.

Replacement cost = cost to hire + (vacancy months × role output value) + ramp months × (1 − productivity%) × loaded pay + knowledge/severance extras.

Estimates the fully loaded cost of losing a software engineer: recruiting, vacancy drag, onboarding ramp, and knowledge lost—not just a job-board invoice.

When to use this true cost to replace a software engineer turnover

Common use cases

  • Estimate turnover cost to replace a software engineer: hiring, ramp, and lost output. Free, instant.
  • Sanity-check with this scenario: Hire cost $28k + 2 months vacancy at $12k/month impact + 3 months at 50% of $15k loaded pay ≈ $28k + $24k + $22.5k = $74.5k.
  • The relationship is: Replacement cost = cost to hire + (vacancy months × role output value) + ramp months × (1 − productivity%) × loaded pay + knowledge/severance extras.

Localized examples

  • HR & Ops: the example on this page uses the same formula as the widget.

What you get

  • Workspace controls for this exact question
  • Replacement cost = cost to hire + (vacancy months × role output value) + ramp months × (1 − productivity%) × loaded pay + knowledge/severance extras.
  • Scenario on the page: Hire cost $28k + 2 months vacancy at $12k/month impact + 3 months at 50% of $15k loaded pay ≈ $28k + $24k + $22.5k = $74.5k.

How to Calculate True Cost to Replace a Software Engineer Turnover

  1. 1Estimates the fully loaded cost of losing a software engineer: recruiting, vacancy drag, onboarding ramp, and knowledge lost—not just a job-board invoice.
  2. 2Replacement cost = cost to hire + (vacancy months × role output value) + ramp months × (1 − productivity%) × loaded pay + knowledge/severance extras.
  3. 3Scenario: Hire cost $28k + 2 months vacancy at $12k/month impact + 3 months at 50% of $15k loaded pay ≈ $28k + $24k + $22.5k = $74.5k.
  4. 4Retention is often cheaper than a “we’ll just backfill.” This number is what you compare against a raise, equity refresh, or manager time.

Formula and methodology

Governing formula

Replacement cost = cost to hire + (vacancy months × role output value) + ramp months × (1 − productivity%) × loaded pay + knowledge/severance extras.

Scenario: Hire cost $28k + 2 months vacancy at $12k/month impact + 3 months at 50% of $15k loaded pay ≈ $28k + $24k + $22.5k = $74.5k.

Retention is often cheaper than a “we’ll just backfill.” This number is what you compare against a raise, equity refresh, or manager time.

Frequently Asked Questions

Studies and internal models often land between 50–150% of annual loaded cost once hiring, vacancy, and ramp are included. Use your own rates in this formula.

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