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Renovation Budget Calculator

Add up materials, labor, permits, and a contingency buffer into one project budget total. Pure arithmetic — not financial advice.

Computed in your browser — nothing you enter is uploaded. Figures are presented for United States against IRC 2024, and every formula is cited under regulatory standards below.

Last verified 2026-08-25 · v1.0.0

Market
Imperial · sales tax

Total project budget

10695 USD

High confidence
Materials
5000 USD
Labor
4000 USD
Permits & fees
300 USD
Subtotal
9300 USD
Contingency buffer
1395 USD

At the values currently entered, the total project budget works out to 10695 USD. The largest intermediate quantity is subtotal, at 9300 USD — check that step first if the total looks off. Note that materials cost (usd) and labor cost (usd) sit at the edge of the range this calculator was checked against, so treat the output as indicative rather than settled. Figures are shown for United States, where IRC 2024 is the governing residential reference; switch the market above if you are building elsewhere.

Preliminary estimate, not certified engineering. This tool produces an indicative quantity calculation for planning purposes only — it is not a certified structural analysis, a guaranteed material takeoff, or a substitute for building department approval. Always verify measurements on-site and have a licensed contractor or structural engineer review any load-bearing, code-sensitive, or safety-critical work before purchasing materials or starting construction. Spotted an arithmetic or standards error? Report it to contact@craftquantities.com with your inputs — confirmed fixes become pinned regression tests.

[Schema Verified] Computed in alignment with American Concrete Institute (ACI 318-19) formulas and International Residential Code (IRC 2024) spatial boundaries.

Regulatory standards & verification citations

  • A 10-20% contingency buffer for unexpected costs is standard, widely-recommended practice for renovation budgeting

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Frequently asked questions

Is this financial advice?
No — this is pure arithmetic addition of numbers you provide. It doesn't recommend financing options, compare rates, or suggest whether you should spend this much.
Why include a contingency buffer?
Renovation projects, especially ones that open up walls or floors, very commonly uncover unexpected issues (old wiring, water damage, structural surprises). Budgeting for it upfront avoids a mid-project funding gap.
Should I include appliance or furniture costs?
Include them in 'Materials' if they're part of the renovation scope (e.g. a new kitchen range), but decide based on your own project definition — this tool doesn't distinguish categories beyond what you enter.