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Real Estate Calculators β€” Free Calculators That Show Their Work

This page is for buyers, homeowners, landlords, and investors comparing the true cost of property decisions. Use these calculators to break down mortgage payments, affordability, refinance math, rental returns, and property-tax-adjacent tradeoffs before you commit.

8 live calculatorsTransparent formulas
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Debt-to-Income Ratio Calculator

DTI is the primary number lenders use to approve mortgages. Contractors get flagged because lenders use 2-year net income, not gross revenue. See your front-end and back-end DTI, loan qualification status, and exactly how much debt to pay off or income to add to qualify.

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// FinancialOpen
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Real Estate Investment Calculator

Evaluate rental property deals with cap rate, cash-on-cash return, monthly cash flow, the 1% rule check, and a 10-year equity projection. Full mortgage payment and operating expense breakdown included.

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// FinancialOpen
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Mortgage Calculator

Calculate monthly payments, total interest, and full amortization schedule

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// Real EstateOpen
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Home Affordability Calculator

Find out how much house you can afford based on income, debts, and down payment.

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// Real EstateOpen
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Rental Property ROI Calculator

Analyze a rental property investment β€” cash flow, cap rate, and return on investment.

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// Real EstateOpen
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Rent vs Buy Calculator

Should you rent or buy? See the true break-even timeline, total costs over 5–30 years, and which option wins given your market and lifestyle β€” with the math shown.

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// Real EstateOpen
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Rental Property ROI Calculator

Calculate the real ROI of a rental property: monthly cash flow, cap rate, cash-on-cash return, gross rent multiplier. Includes 3% and 5% appreciation scenarios with 5/10/30-year equity projections and a full monthly expense breakdown.

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// FinancialOpen
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Mortgage Refinance Calculator

Should you refinance? Calculate your break-even point, monthly payment savings, and lifetime interest saved vs. your current loan β€” with a year-by-year amortization comparison.

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// Real EstateOpen