Calculator Inputs
Formula Used
Total Overhead Pool = Indirect Overhead + Fringe Costs + Other Allocated Costs
Overhead Burden Rate (%) = (Total Overhead Pool ÷ Direct Labor Cost) × 100
Overhead per Labor Hour = Total Overhead Pool ÷ Direct Labor Hours
Loaded Hourly Cost = (Direct Labor Cost + Total Overhead Pool) ÷ Direct Labor Hours
Billable Loaded Rate = (Direct Labor Cost + Total Overhead Pool) ÷ Billable Hours
Suggested Sell Rate = Billable Loaded Rate ÷ (1 − Desired Profit Margin)
These formulas help teams connect staffing time, utilization, overhead allocation, and pricing targets in one view.
How to Use This Calculator
- Enter your monthly or project-based indirect overhead expenses.
- Add fringe costs such as benefits, payroll taxes, and insurance.
- Include any other allocated costs tied to support functions.
- Provide total direct labor cost for the same period.
- Enter direct labor hours and the billable hours achieved.
- Set your desired profit margin to estimate a sell rate.
- Press calculate to show results above the form.
- Review the graph, then export your results as CSV or PDF.
Example Data Table
| Scenario | Indirect Overhead | Fringe | Other Costs | Direct Labor Cost | Labor Hours | Billable Hours | Burden Rate |
|---|---|---|---|---|---|---|---|
| Baseline Team | $18,000 | $4,500 | $2,500 | $30,000 | 600 | 510 | 83.33% |
| Lean Support | $12,000 | $3,200 | $1,800 | $28,000 | 580 | 500 | 60.71% |
| Higher Utilization | $18,000 | $4,500 | $2,500 | $30,000 | 600 | 560 | 83.33% |
FAQs
1. What is an overhead burden rate?
It shows how much indirect cost is assigned to direct labor. Businesses use it to understand true labor cost, price work accurately, and compare staffing efficiency across teams or time periods.
2. Why is direct labor cost used in the formula?
Direct labor cost is a common allocation base because it connects support spending to productive work. It helps managers see how strongly overhead affects wage-driven operations and service delivery.
3. Can I use hours instead of labor cost?
Yes. Many companies also track overhead per labor hour. This page calculates both burden percentage and hourly loading so you can compare cost-based and time-based views together.
4. What costs belong in overhead?
Typical overhead includes rent, utilities, supervision, software, support staff, payroll taxes, benefits, and general administration. Include only indirect items that support work but are not billed directly.
5. How does utilization affect the loaded rate?
When billable hours drop, the same labor and overhead costs are spread across fewer hours. That pushes the billable loaded rate upward and may require higher prices to protect margin.
6. Why is a suggested sell rate included?
The suggested sell rate turns cost findings into an actionable pricing target. It estimates the hourly charge needed to recover loaded cost and still reach the margin you entered.
7. Should I calculate monthly or by project?
Either works, as long as every input covers the same period. Monthly inputs help operational planning, while project inputs help estimate staffing, billing, and profitability for specific engagements.
8. How often should burden rates be updated?
Update them whenever support costs, staffing mix, benefit costs, or utilization changes meaningfully. Many teams refresh monthly or quarterly to keep planning assumptions and pricing decisions current.