Housing Calculators
Free housing calculators for rent vs buy, home affordability, moving costs, and more. Make your housing decisions wisely.
17 free housing calculators available.
Most Popular Housing Calculators
- Home Affordability Calculator — Estimate maximum home price based on income, debts, and down payment. Supports FHA, VA, USDA, and conventional loan types with front-end and back-end DTI ratio calculations, qualification status indicators, and payment breakdown charts.
- Mortgage Payment Calculator — Calculate monthly mortgage payments with principal, interest, property taxes, homeowners insurance, and PMI. Features loan amount, interest rate, and term inputs with detailed payment breakdowns and amortization charts.
- Mortgage Refinance Calculator — Analyze mortgage refinancing options with detailed break-even analysis, interest rate comparisons, and closing cost calculations. Determine monthly payment reduction, total interest savings, and optimal timing for refinancing your home loan with comprehensive cost-benefit projections.
Why Housing Calculators Matter
A house is the largest purchase most people make, and housing calculators are where small assumptions multiply into life-changing sums. A 0.25% mortgage rate difference on a $400k loan is $20,000 over 30 years. A PMI cost missed in the affordability calculation is $100-200/month. ConvertMart's housing calculators include every line item real lenders include — principal, interest, property tax, homeowner's insurance, HOA, PMI, maintenance reserve — so the number you see is what you'll actually pay.
Top Use Cases
- Calculate the real monthly cost of homeownership (PITI + HOA + maintenance) at any price point
- Determine maximum home price based on income, debt-to-income ratio, and down payment
- Compare renting vs. buying over 5, 10, and 30 year horizons including opportunity cost of the down payment
- Estimate closing costs (typically 2-5% of purchase price) before you make an offer
- Calculate HELOC availability and interest costs on a home equity line of credit
- Project home value appreciation and the equity you build over time
How to Use ConvertMart's Housing Calculators
Start with the home affordability calculator if you're shopping; start with the mortgage calculator if you have a specific property in mind. Enter price, down payment, and rate. The calculator returns monthly PITI (principal + interest + taxes + insurance) broken down by component. Adjust inputs to see how each affects the total. For rent vs. buy, the calculator factors in opportunity cost of the down payment — if your down payment could earn 8% in the S&P 500, that matters to the comparison.
Popular Questions
- How much house can I afford?
- What is the monthly payment on a $400k mortgage at 6.5%?
- Should I rent or buy in my market?
- How much will closing costs be on a $300k home?
- What is the break-even point on a refinance?
Frequently Asked Questions
- What is the 28/36 rule?
- Lenders generally cap housing costs at 28% of gross monthly income and total debt payments at 36%. So a $100k salary ($8,333/month gross) can support up to $2,333/month in housing and $3,000/month in total debt. ConvertMart applies these limits automatically in the affordability calculator.
- Does the calculator include PMI?
- Yes. If your down payment is under 20%, the calculator adds private mortgage insurance (PMI) at approximately 0.5-1.5% of the loan amount annually, split across 12 monthly payments. PMI drops off automatically when you reach 20% equity.
All Housing Calculators (17)
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