DIY vs Contractor Cost Calculator

The DIY vs contractor decision involves comparing the contractor’s quote against the true DIY cost - materials, tools, and the opportunity cost of your time. Use this calculator for accurate, instant results.

The calculator uses the standard published formula for diy vs contractor. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with inches, percentages. You can enter values in the units shown — the calculator handles all conversions internally.

The core formula is: DIY cost = Materials + Tools + Time x Opportunity cost rate (50-100% of hourly wage). Each step in the calculation is shown so you can verify the result manually.