How to Use This Renovation Calculator
Start by selecting your project type and entering your total renovation budget. If you plan to pay cash, toggle off the "Finance this renovation" switch to see your all-in cost and estimated return on investment immediately. If you're financing, toggle it on to see loan options, monthly payments, and how much extra you'll pay in interest.
The Loan Type selector helps you compare common renovation financing products: HELOCs, personal loans, cash-out refinances, and construction loans. Each has different typical rate ranges shown to guide you. Enter the rate you've been quoted (or an estimate) along with your preferred term to see your monthly obligation.
The Cash vs. Finance comparison chart clearly shows how much financing adds to your total project cost, making the decision tangible. The ROI estimate is based on industry-average returns for each project type, helping you understand which renovations are most likely to increase your home's value relative to cost.
Average Renovation Costs by Project (2024)
| Project | Low | Average | High | Avg. ROI |
|---|---|---|---|---|
| Minor Kitchen Remodel | $15,000 | $28,000 | $50,000 | 80% |
| Major Kitchen Remodel | $50,000 | $80,000 | $150,000+ | 55% |
| Bathroom Remodel | $10,000 | $22,000 | $50,000 | 65% |
| Basement Finishing | $20,000 | $45,000 | $90,000 | 50% |
| Deck / Patio Addition | $8,000 | $20,000 | $50,000 | 60% |
| Roof Replacement | $9,000 | $16,000 | $30,000 | 70% |
| Window Replacement | $5,000 | $15,000 | $35,000 | 68% |
| Room Addition | $50,000 | $120,000 | $250,000+ | 55% |
Costs are national averages and vary significantly by region, materials, and contractor. ROI estimates based on Remodeling Magazine Cost vs. Value data.
Renovation Financing Tips
Check your home equity first
Your equity (home value minus mortgage balance) determines what you can borrow with a HELOC or home equity loan. Many lenders allow up to 85% LTV — subtract your mortgage balance to find your borrowing ceiling.
Get itemized contractor bids
Insist on line-item bids, not lump-sum estimates. This makes it easier to compare bids, identify where costs can be trimmed, and track expenses during the project.
Time your project strategically
Contractors are often less busy (and may offer better pricing) in fall and winter. Starting a kitchen reno in January rather than June could save 10-15% on labor.
Use 0% promo cards for small projects
For renovations under $15,000, a 0% APR promotional credit card (typically 12-18 months) can be interest-free if paid off before the promo period ends.