Resource Cost Calculator
Calculates the fully-loaded cost of a resource by combining labor hours and rates with an overhead multiplier. Use it when estimating project budgets or comparing in-house versus contracted resource costs.
About this calculator
Resource cost calculations go beyond simple hourly billing — they must account for the overhead burden that organizations carry to support every working hour. The formula is: Total Cost = (hourlyRate × totalHours) × (1 + overheadPercentage / 100). The base labor cost is the direct expense of the resource's time. The overhead multiplier adds indirect costs such as office space, equipment, benefits, HR, management time, and administrative support. A typical overhead rate for office-based knowledge workers ranges from 20–50%, meaning a $50/hour developer actually costs $60–$75/hour fully loaded. Understanding true resource cost is critical for accurate project proposals, build-vs-buy decisions, and post-project financial reviews.
How to use
A developer is budgeted at $75/hour and will work 320 hours on a project. Your organization's overhead rate is 30%. Calculate base cost: $75 × 320 = $24,000. Apply the overhead multiplier: $24,000 × (1 + 30/100) = $24,000 × 1.30 = $31,200. The fully-loaded cost of this resource for the project is $31,200. If you were comparing this to a contractor quoting $95/hour for 320 hours ($30,400 total with no overhead), you would see the in-house resource is only slightly cheaper once overhead is factored in.
Frequently asked questions
What costs are typically included in the overhead percentage for resource calculations?
Overhead costs cover everything an organization spends to support employees beyond their direct wages. This includes office rent and utilities, hardware and software licenses, IT support, HR and recruiting amortized over tenure, management and administrative salaries, training, insurance, and employee benefits such as healthcare and retirement contributions. In many industries, overhead rates range from 25–75% depending on the size of the organization, the role type, and whether the work is office-based or remote. Finance or HR teams typically maintain a standard overhead rate that project managers can apply directly.
How does overhead percentage affect the break-even point between hiring and contracting?
When your overhead rate is high, in-house resources become more expensive relative to their sticker wage, shrinking the cost gap with contractors. For example, if your overhead is 50%, a $60/hour employee costs $90/hour fully loaded — making a contractor at $85/hour actually cheaper. Break-even analysis using fully-loaded rates gives a more honest comparison than comparing base salaries to contractor fees. Additionally, contractors typically don't generate overhead burden, which makes short-term or specialized engagements even more cost-competitive on a per-hour basis.
Why should project budgets use fully-loaded resource costs instead of just hourly rates?
Using raw hourly rates systematically underestimates project costs and leads to budget overruns that appear on the books but not in the project plan. When a project is charged only for direct labor, the overhead costs are still being incurred — they're just absorbed elsewhere in the organization's budget, creating hidden subsidies. Using fully-loaded rates ensures that project budgets reflect the true economic cost of the work, enabling accurate ROI calculations, fair pricing for client-facing projects, and better prioritization decisions when comparing competing initiatives.