Home Improvement ROI Calculator
Check whether a project pays you back before you sign the contract. Enter what the work costs and what you realistically expect it to add to your home, and the calculator returns the percentage of cost recouped, the net gain or loss, and where your home value lands by the time you sell. Almost no remodel returns more than it costs at resale — this shows you how far short it falls.
Your project
Estimate
68%
Cost recouped at resale · Value added ÷ project cost
- Net gain or loss
- -$8,000
- Projected value at sale
- $483,417
- Project as % of home value
- 6.25%
Estimates are guidance only and exclude tax, labor, and site conditions unless stated. Confirm with a local pro.
How it's calculated
No black boxes — here is the exact math behind your estimate, so you can check it or adapt it for your own quote.
- 1
Cost recouped % = estimated value added ÷ project cost × 100 - 2
Net gain or loss = estimated value added − project cost - 3
Improved value = current home value + estimated value added - 4
Projected value at sale = improved value × (1 + appreciation % ÷ 100) ^ years - 5
Project as % of home value = project cost ÷ current home value × 100
Worked example
A $25,000 mid-range kitchen remodel on a $400,000 home, expected to add $17,000, sold in 5 years with 3% annual appreciation.
Inputs
- Project cost
- 25000 $
- Estimated value added
- 17000 $
- Current home value
- 400000 $
- Years until sale
- 5 yr
- Annual appreciation
- 3 %
Result
- Cost recouped at resale
- 68 %
- Net gain or loss
- -$8,000
- Projected value at sale
- $483,417
- Project as % of home value
- 6.25 %
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Frequently asked questions
Does any remodel return more than it costs?
Almost none do at resale. The cost-versus-value studies published each year by the remodeling trade press consistently show most project categories recouping well under 100% of what they cost. Major kitchen and bathroom remodels commonly land somewhere in the 50–80% range. The projects that recoup the most tend to be modest exterior replacements — garage door, entry door, manufactured stone veneer, siding — where the spend is a few thousand dollars and the curb-appeal effect is immediate. Highly personal work such as a pool, a home theater, or a converted garage usually performs worst and can shrink your buyer pool.
What is the difference between resale value and enjoyment value?
This calculator measures exactly one thing: money back at sale. It cannot price the ten years you spend in a kitchen you actually like, or the difference between a bathroom your household fights over and one that works. If you are staying put for a decade, a 68% recoup rate on something you use daily is a reasonable trade. If you are selling in 18 months, that same 68% is simply an $8,000 loss on a $25,000 job. Decide which question you are asking before you act on the answer. Repairs behave differently again — a new roof or a dry basement mostly protects the price rather than raising it.
How do I avoid over-improving for my neighborhood?
Every neighborhood has a price ceiling, and appraisers work from comparable sales inside it. If nearby homes sell between $400,000 and $450,000 and yours is already at $420,000, a $120,000 addition does not produce a $540,000 sale — buyers shopping at that price have moved to a different neighborhood. A widely used guideline is to keep any single project under roughly 10–15% of the home value, and to keep total improvements from pushing you more than about 10% above the top recent comparable sale. The percent-of-home-value output above exists to flag exactly that.
Where do published recoup percentages come from?
They come from cost-versus-value surveys published annually by the remodeling industry, which set national and regional average project costs against what real estate professionals estimate the work adds at resale. They are averages, not appraisals: recoup rates vary widely by region and move with the local market, and a hot market can lift every category at once. For a figure you can budget against, ask a local agent what comparable homes with and without the improvement have actually sold for in the past year, and use that spread as your estimated value added.
What should I enter for estimated value added?
Not the project cost — that is the single most common mistake and it makes everything look like a 100% return. Ask a local agent to pull recent comparable sales with and without the feature; the spread between them, adjusted for size and condition, is your realistic value added. Without that, apply a published recoup rate for your project type — say 70% for a mid-range kitchen — to your actual cost and treat the result as a planning figure only. This is an estimate for budgeting, not an appraisal. A licensed appraiser or an agent with recent local sales is the authority on what your market will pay.