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Calculators · Free tool

Contractor Gross Margin & Markup Calculator

Convert markup and margin, then see the selling price and gross-profit relationship for a contractor job-cost assumption. Use it to organize an estimate—not as code, engineering, tax, legal, or manufacturer approval.

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How to use this tool

Enter the assumptions you can support from the job, your company records, and current supplier information. Review the result alongside actual costs, local requirements, equipment instructions, and professional judgment.

Disclaimer: SkilledCurrent calculator outputs are informational estimates only. They are not a substitute for applicable codes, engineering, tax, legal advice, manufacturer instructions, or qualified professional review.

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Before you rely on the result

Use the calculator as a working aid.

Markup is calculated from cost; gross margin is calculated from selling price. They are not interchangeable percentages, even when the same job cost is used.

Applicability: For comparing a direct job-cost assumption with a desired markup or gross-margin discussion before a proposal is finalized.

Field example: With a $100 direct job cost and 40% markup, the selling price is $140, gross profit is $40, and gross margin is 28.6%.

Common input problems

  • Calling markup and gross margin the same percentage.
  • Using incomplete direct cost.
  • Treating gross margin as net profit after company overhead, taxes, financing, warranty, and other operating costs.

Review note: Business-calculation methodology reviewed September 7, 2026. Confirm cost completeness and company pricing policy before quoting work.

Calculator results are informational. They do not establish code compliance, engineering suitability, manufacturer approval, pricing adequacy, or site-specific safety requirements.