RemodelMeter is built for planning, not for pretending that every home improvement project has one exact price.
Our approach
Our calculators start with a project-specific U.S. planning range and adjust that range using inputs that can materially affect price. Depending on the project, those inputs may include size, scope, finish level, material choice, labor intensity, layout changes, complexity and a broad local-market factor.
Why we show ranges
Two qualified contractors can legitimately quote different prices for the same project. Access, permits, demolition, hidden damage, product availability, labor conditions, warranty scope and contractor overhead all vary. A range is therefore more useful for early planning than a single number that implies false precision.
Sources and benchmarks
Cost models are reviewed against current U.S. remodeling market information, contractor-pricing references, home-improvement publications and other relevant published sources. Individual calculator and guide pages may cite specific references used for their benchmarks.
How calculator adjustments work
Calculator inputs are intended to represent major cost drivers rather than every possible line item. Adjustment factors are planning tools, not contractor pricing formulas.
How the U.S. market selector works
Several calculators offer three manually selected market scenarios: lower-cost (0.86 times the base estimate), national-average (1.00 times), and higher-cost (1.20 times). These are broad illustrative multipliers, not live ZIP-code prices, measured local labor surveys, or contractor quotes. The tools do not automatically look up your city. Actual bids can fall outside these adjustments.
Worked examples: how the estimates are calculated
These examples reproduce the calculation models used by RemodelMeter. They are examples of the tool’s assumptions, not observed contractor bids or verified local prices.
Roof replacement — 1,800 sq ft
With 1,800 sq ft of roof surface, asphalt shingles, average complexity, the national market factor and no tear-off, the model calculates 1,800 × $4 = $7,200 at the low end and 1,800 × $11 = $19,800 at the high end. Optional tear-off adds an allowance before rounding; a contractor may already bundle tear-off into an installed quote. Roof surface area is not necessarily the same as a home’s interior floor area.
Kitchen remodel — 150 sq ft
For a major remodel of a 150 sq ft kitchen, with finish and local market factors both at 1.0, the base planning range is $20,000–$65,000. The room-size multiplier is 150 ÷ 150 = 1.0, so the range stays at its baseline before any other adjustments.
Bathroom remodel — 60 sq ft
For a standard remodel of a 60 sq ft bathroom, with plumbing and local market factors both at 1.0, the base planning range is $6,650–$17,650. The room-size multiplier is 60 ÷ 60 = 1.0. A shower-only project should be estimated separately from a full bathroom remodel.
Important limits of room-size scaling
The kitchen size factor is capped at 1.70, so above 255 sq ft, additional square footage alone does not raise the estimate. The bathroom size factor is capped at 1.80, so above 108 sq ft, additional square footage alone does not raise the estimate. These caps avoid unchecked linear extrapolation but can underestimate unusually large or complex remodels. For large rooms, rely on detailed written contractor quotes rather than the calculator alone.
Results are rounded planning ranges and do not account for all taxes, permits, structural repairs, design fees, or concealed conditions. Compare several local quotes for the same scope.
Editorial review
The RemodelMeter Editorial Team reviews cost guides and calculators for consistency with this methodology, including the stated project scope, major cost drivers, source references and the distinction between national planning ranges and local contractor pricing.
Updates
We review calculators and guides periodically and may update benchmark ranges, assumptions, source links and explanatory text when newer information becomes available.
What our estimates do not include
A RemodelMeter estimate cannot inspect your property or account for every site-specific condition. Structural damage, code upgrades, unusual access, design fees, permit requirements, custom fabrication, premium materials and local labor shortages can move a real quote outside the displayed range.
How to use a RemodelMeter estimate
Use the result to decide whether a project is broadly compatible with your budget and to compare the scope of local proposals. Before hiring, request written, itemized quotes that clearly identify labor, materials, allowances, exclusions, permits, cleanup and warranty terms.
Important limitation
RemodelMeter estimates are educational planning tools. They are not contractor bids, appraisals, engineering opinions, legal advice or guarantees of final installed cost.
For more context, read About RemodelMeter, review our Editorial Policy, or browse all home improvement cost calculators.