Renovation Budget Calculator
Estimate the total cost of a remodel — by room, quality grade, region, and scope — with labor, materials, and contingency broken out. Add multiple rooms, or flip the calculator around and see what you can afford for a given budget.
Project details
Updates as you typeFormula
- Area
- Room floor area in square feet
- Rate
- Per-sq-ft cost range for the room type (low–high)
- Q
- Quality multiplier — budget 0.65×, mid-range 1.00×, premium 1.60×
- S
- Scope multiplier — cosmetic 0.55×, mid 1.00×, gut 1.35×
- R
- Regional multiplier — ranges from 0.82× (lower-cost US) to 1.25× (UK / major US metro)
- Room: —
- Area: —
- Base rate: —
- Quality × scope × region: —
- Effective rate: —
- Room range: —
- Project midpoint = —
Per-square-foot base rates come from the RSMeans + NAHB cost indices, averaged to mid-range quality in the US. The midpoint is the mean of the low–high range. Real contractor quotes will cluster around the midpoint for straightforward jobs, and lean high for older homes, challenging site access, or bespoke design.
Examples
How It Works
The baseline is a per-square-foot cost range for each room type at mid-range quality (for example, kitchens typically run $100–$300/sq ft). Larger or more specialized rooms — kitchens, bathrooms, laundries — cost more per square foot than bedrooms or basements because they concentrate plumbing, wiring, cabinetry, and appliances into a small area.
On top of that, three multipliers adjust the range. Quality moves the whole range up or down (budget ≈ 0.65×, premium ≈ 1.60×) to reflect the cost difference between IKEA-tier finishes and custom cabinetry with stone counters. Scope captures how deep you're going — a cosmetic refresh is roughly 0.55× a mid renovation, while a full gut with structural work runs around 1.35×. Region handles the fact that labor in a major metro costs materially more than in a smaller market.
The final number is broken into labor (~40%), materials (~45%), and design & contingency (~15%). The contingency is not optional — on any renovation of consequence, something hidden behind a wall will change the plan. Budget for it up front.
Flip the calculator to "Given budget" mode to go the other way: enter what you can spend and see roughly how much area that buys at the quality/scope you want.
Tips & Best Practices
Frequently Asked Questions
How accurate is this renovation budget estimator?
This calculator gives a directional range based on industry averages for per-square-foot costs, quality multipliers, and regional variation. For a remodel budgeted under $20,000, expect actual bids within ±25% of the midpoint. For a full gut above $100,000, tighten that to ±15%. Always get at least three local contractor quotes before committing to a number — no calculator replaces a site visit.
Does this include appliances, permits, and design fees?
The midpoint assumes standard-quality appliances are included in a kitchen, and standard fixtures in a bathroom. Permits and a small design allowance are bundled into the "Design & contingency" 15% line. Custom appliances (Sub-Zero, Wolf, La Cornue) and architect-led design on gut renovations are not included — add those on top.
Why is the range so wide?
Renovation is the most variable-cost category in residential construction. A kitchen can legitimately cost $100/sq ft with in-stock cabinets and laminate counters, or $300+/sq ft with custom cabinetry and quartzite. The range reflects that reality. Narrow it by specifying quality and scope, and by getting real quotes.
What is the difference between quality levels?
Budget means stock cabinets, laminate or butcher-block counters, standard-grade appliances, vinyl or laminate flooring, and basic fixtures. Mid-range is semi-custom cabinets, quartz or granite counters, mid-grade appliances, hardwood or tile flooring, and brand-name fixtures. Premium is custom cabinetry, natural stone counters, professional-grade appliances, wide-plank hardwood or imported tile, and designer fixtures.
What is the difference between scope levels?
Cosmetic keeps the layout and infrastructure and swaps finishes — new paint, new tile, new cabinets on existing layout. Mid may move non-load-bearing walls or relocate a plumbing fixture. Gut renovation strips the space to studs, often reconfigures layout, and typically involves structural changes — this is where permits, engineering, and coordination costs really stack up.
How much should I budget for contingency?
Industry convention is 10–15% on new construction, and 15–20% on renovations (especially in older homes). A $60,000 kitchen remodel should have $9,000–$12,000 in reserve you have not touched. Treat it as committed — if you do not use it, the project came in under budget, which is rare and worth celebrating.
How do I pay for a renovation?
Cash is cleanest. Otherwise options include a home equity line of credit (HELOC), a cash-out refinance if mortgage rates are favorable, a renovation-specific loan (FHA 203(k) or Fannie Mae HomeStyle), or a personal loan for smaller projects. Credit cards are a bad idea for anything beyond a few thousand dollars of finishes.
Does this calculator work for commercial renovations?
No — commercial build-out has very different cost drivers (occupancy classification, ADA compliance, commercial-grade MEP, accessibility, tenant improvement allowances). The per-square-foot ranges here are specifically for residential renovations in single-family and multi-family homes.