Personnel Cost Calculator
Calculate the fully-loaded cost of hiring a postdoc, grad student, or technician — including fringe benefits — across your budget.
Academic Personnel Cost Calculator: The True Cost of Hiring in Your Lab
Add a postdoc, grad student, undergrad, or technician hire and see the fully-loaded annual cost — base salary plus fringe benefits — prorated by effort and duration. Compare multiple hires at once, check the total against a budget ceiling, and see the year-one impact of delaying a hire. No account needed, nothing leaves your browser.
Fully-loaded annual cost (100% FTE)
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Actual cost (FTE × duration)
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Fringe structures vary by institution — some charge a single blended percentage, others charge a percentage plus a separate flat-dollar benefits cost. The defaults here are illustrative, not your institution's actual rates. Confirm exact figures, including any flat-dollar components, with your grants or sponsored programs office before finalizing a budget.
Frequently asked questions
What is a fringe rate?
A fringe (or benefits) rate is the cost added on top of base salary to cover the employer's share of benefits — health insurance, retirement, payroll taxes. Some institutions charge this as a single blended percentage of salary; others charge a percentage plus a separate flat-dollar health or benefits line, which can meaningfully change the total, especially for lower stipends. Rates and structures vary significantly by institution — always confirm the exact figures and structure with your grants office rather than relying on general defaults.
How do I calculate the true cost of hiring a postdoc?
Start with base salary, then add your institution's fringe cost — which may be a percentage, a flat dollar amount, or both. For example, a $65,000 postdoc salary at a 25% fringe rate costs roughly $81,250 fully loaded — but if your institution also charges a separate flat-dollar health line, add that on top, since it won't be captured by the percentage alone. This structure differs enough by institution that the only reliable number is one confirmed with your own grants office.
Do graduate students have lower fringe rates than postdocs?
Often yes, since graduate students are frequently exempt from many of the benefits categories that apply to full employees — but graduate students may also require tuition remission to be budgeted separately, which isn't a fringe cost but adds significantly to true total cost.
Should I budget fringe rates the same for every year of a multi-year grant?
No — many institutions apply an annual cost-of-living or fringe-rate escalation (commonly a few percent per year), so a multi-year personnel budget should account for rates increasing, not stay flat.
How much does an undergraduate research assistant cost compared to a technician?
Undergraduates typically have the lowest fully-loaded cost, since they're usually hourly with minimal fringe benefits, while lab managers and technicians are typically full staff positions with the highest fringe rates of any hire type.
Does hiring on a training grant or fellowship (F31/F32/T32/NRSA) cost the same as hiring on a regular grant?
No. Training grant and fellowship stipends follow fixed federal stipend scales set by the funding mechanism, not standard employee salary and fringe benefits — there's typically no FICA and no institutional fringe rate applied the way there is for a standard hire. If you're funding someone through one of these mechanisms, check the current NIH stipend levels for that specific award type rather than using this calculator's standard fringe fields.
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