Free Contractor Calculators — Markup, Pricing, and Profit Tools (2026)

Quick Answer

SmartBizCalc offers free calculators for contractors covering job pricing, markup, profit margins, overhead recovery, insurance costs, and tax planning. All tools are free and require no account. Use these calculators before quoting a job to make sure your price covers all costs and hits your profit target.

Job Pricing Calculators

Contractor Markup Calculator

Calculate the right markup percentage to cover overhead and hit your profit target on any job.

Break-Even Calculator

Find the minimum revenue your business needs to cover all fixed and variable costs.

Cost of Doing Business Calculator

Determine your true hourly cost rate so every job covers overhead and returns a profit.

Trade-Specific Tools

HVAC Profit Margin Calculator

Calculate net profit margin on HVAC jobs and see what you need to charge to hit your target.

Electrician Markup Calculator

Price electrical jobs based on labor, materials, overhead, and profit margin target.

Roofing Job Cost Calculator

Estimate total roofing job cost including materials, labor, and overhead for accurate bids.

Plumbing Service Pricing Calculator

Set profitable rates for plumbing service calls, repairs, and installations.

Electrician Pricing Calculator

Build a complete price for any electrical job from service calls to full panel installs.

Painter Pricing Calculator

Calculate room-by-room or square footage paint job pricing with labor and material costs.

Pressure Washing Pricing Calculator

Find your profitable price per square foot and per job for pressure washing services.

Insurance and Tax

General Liability Insurance Calculator

Estimate annual GL insurance cost for your contracting business by trade and revenue.

Workers Comp Insurance Calculator

Estimate your workers compensation premium based on trade classification and payroll.

Quarterly Tax Calculator

Estimate your quarterly estimated tax payments so you never owe a penalty at year end.

Self-Employment Tax Calculator

Calculate your SE tax obligation and understand how the deduction affects your net tax bill.

These calculators are for informational purposes only. Results are estimates based on the inputs you provide. Consult a qualified financial professional before making business decisions.