Onboarding Is an Invisible but Very Real Cost
When a new developer joins, setting up a laptop, dev environment, access permissions, and getting familiar with the codebase can take days. That time never shows up as a line item on payroll, but the new hire isn't producing during it — that's a real labor cost. Add in the time existing teammates spend helping, and the true cost is often bigger than people assume.
This calculator multiplies the number of new hires, setup hours per hire, and hourly rate to get a base onboarding cost, then adds mentoring time — assumed to be 30% of setup time — for a more realistic total.
If the number comes out larger than expected, consider investing in a standardized Dockerized dev environment, one-click setup scripts, or detailed onboarding documentation. The upfront cost of good docs pays for itself many times over as your team keeps hiring.
Frequently Asked Questions
The time existing team members spend answering questions while a new hire sets up is a real cost too, so we add 30% of the setup time as mentoring overhead.
Preparing a Dockerized dev environment, one-click setup scripts, and detailed onboarding docs lets new hires solve more on their own, cutting the time significantly.
Use a fully loaded hourly rate that includes the base salary divided by working hours plus benefits and overhead the company covers, not just the base pay.