Labor Cost Calculator: Free Online Construction Labor Estimator
Use our free labor cost calculator to estimate the total labor expense for any construction, renovation, or landscaping project. Designed for general contractors, subcontractors, estimators, and project managers, this tool calculates direct wages, payroll burden, overhead allocation, and profit margin to determine your true loaded labor rate and total project labor cost. Enter your crew size, hours, and rates to get job-ready estimates.
How to use this calculator.
- Enter crew details. Specify the number of workers, their hourly base wage, and the total project hours or days expected. Add multiple crew types (skilled, semi-skilled, laborer) for accurate blended rates.
- Add payroll burden. Include workers' compensation insurance, FICA (Social Security and Medicare), unemployment insurance, and benefits. The typical payroll burden adds 25–40% on top of base wages.
- Include overhead allocation. Add general overhead items such as supervision, tools, small equipment, vehicle expenses, office costs, and liability insurance. Overhead typically ranges from 15–30% of direct labor.
- Set your profit margin. Enter your desired profit percentage. Residential construction typically targets 10–20% net profit. Commercial work often targets 8–15%.
- Click Calculate. Results show the fully loaded hourly rate per worker, total labor cost, and the billable rate needed to meet your profit target.
How do you calculate labor costs with overhead and profit?
The true cost of labor combines base wages with mandatory and discretionary employer costs, overhead, and profit to determine the billable rate.
Loaded Wage = Base Hourly Rate × (1 + Burden Rate)
Total Direct Labor Cost = Loaded Wage × Total Hours
Billable Rate = Loaded Wage × (1 + Overhead Rate) ÷ (1 - Profit Margin)
Where:
- Workers' compensation insurance: 5–20% of wages depending on trade and state. Roofers and structural ironworkers pay the highest rates; clerical workers pay the lowest.
- FICA: 7.65% (6.2% Social Security + 1.45% Medicare) matched by the employer. Self-employed workers pay 15.3% SE tax.
- Unemployment insurance: 1–6% on the first $7,000–$40,000 of wages depending on your state and experience rating.
- Overhead rate: 15–30% of direct costs for general contractors. Includes project supervision, temporary facilities, small tools, safety equipment, and vehicle costs.
Example calculation.
Let's calculate the true labor cost for a small concrete crew.
Scenario: A 4-person concrete crew works 3 days (24 hours total) on a driveway pour. The crew consists of 1 finisher at $35/hr and 3 laborers at $22/hr each. Burden rate is 35%. Overhead is 20%. Target profit is 15%.
- Total base wages: (1 × $35 + 3 × $22) × 24 hours = ($35 + $66) × 24 = $101 × 24 = $2,424
- Add payroll burden (35%): $2,424 × 1.35 = $3,272.40 in loaded wages
- Add overhead (20%): $3,272.40 × 1.20 = $3,926.88 total direct cost
- Add profit (15%): $3,926.88 ÷ (1 - 0.15) = $3,926.88 ÷ 0.85 = $4,619.86 billable amount
- Average billable rate per worker-hour: $4,619.86 ÷ 96 hours = $48.12/hr blended rate
Result: The total labor cost including burden and overhead is approximately $3,927. To achieve a 15% profit margin, you need to bill approximately $4,620 for the labor portion of this project, which equals a blended billable rate of$48.12 per hour.
Disclaimer: This calculator provides estimates for planning purposes only. Actual labor costs vary based on jurisdiction, union agreements, prevailing wage requirements, market conditions, and insurance classifications. For formal bids and contracts, verify all rates with your CPA, insurance agent, and attorney. PavementCalculator.com assumes no liability for bidding errors or labor cost miscalculations.
Cost, price, and density figures on this page reflect approximate U.S. averages as of August 2026 and vary by region, supplier, and material availability.
Frequently asked questions.
How do I calculate labor cost for a construction project?
Direct labor cost = Number of workers × Hours worked × Hourly wage. For example, 3 workers × 40 hours × $35/hour = $4,200 in direct labor. Then add overhead (typically 15-25% of direct labor for payroll taxes, workers comp, benefits) and profit margin (typically 10-20% for competitive bidding). Use our calculator above for a complete estimate.
What is a typical labor rate for construction?
General laborer: $15-$25/hour. Skilled labor (carpenter, mason): $25-$45/hour. Equipment operator: $30-$50/hour. Electrician/plumber: $45-$90/hour. Project supervisor/foreman: $35-$60/hour. These are wages: billing rates are 1.5-2.5x higher after burden, overhead, and profit. A contractor billing $75/hour for a $30/hour worker is reasonable when non-wage costs are included.
What is overhead in labor costing?
Overhead includes payroll taxes (7.65% FICA), workers' compensation insurance (5-15% depending on trade), unemployment insurance, health benefits, retirement contributions, paid time off, training costs, and administrative expenses. Total overhead typically adds 15-30% to direct wages. For a $35/hour worker, overhead of 15% adds $5.25/hour to the true cost.
How much profit should I add to labor costs?
Standard profit markup on labor for competitive bidding is 10-20%. For specialty or high-demand work, 20-35% is common. The markup must cover business risk, warranty callbacks, and reinvestment. Below 10% leaves no margin for error: one delay or mistake can turn a profitable job into a loss. Most successful contractors target 15-25% net profit after all costs.
What is the difference between labor cost and labor burden?
Labor cost is the base hourly wage paid to the worker. Labor burden is the additional cost of employing that worker, including payroll taxes, workers' compensation, health insurance, retirement benefits, paid time off, and other mandatory and voluntary benefits. Burden typically adds 15-30% to base wages. Our calculator includes burden in the overhead percentage input.
What is a loaded labor rate?
A loaded labor rate is the true cost of an employee per hour, including base wages plus all employer-paid taxes, insurance, benefits, and workers' compensation. For example, a $25/hr employee with a 35% burden rate has a loaded rate of $33.75/hr. This is the minimum you must charge just to break even on labor, before overhead and profit.
How much should I charge for labor as a contractor?
Most residential general contractors charge $50–$85 per hour per worker for skilled labor, depending on trade and region. This typically breaks down as $25–$40/hr base wage, $10–$15/hr burden, $10–$15/hr overhead, and $10–$20/hr profit. Electricians and plumbers command $75–$120/hr due to licensing requirements and specialty skills.
What is the difference between burden and overhead?
Payroll burden is the direct cost of employing someone beyond their base wage: FICA taxes, workers' comp, unemployment insurance, health benefits, retirement contributions, and paid time off. Overhead is the indirect cost of running the business: supervision, office rent, vehicles, tools, equipment, insurance, and administrative staff. Burden is calculated as a percentage of wages; overhead is typically calculated as a percentage of total direct costs.