Free real estate calculators

Fast, private calculators that run entirely in your browser. Nothing you enter is sent anywhere. Every calculator shows its formulas and assumptions.

Estimates for education only, not legal, tax or financial advice. Confirm numbers with your lender, attorney, CPA or title company.

Investor financing

DSCR Loan Calculator

New Added

Free DSCR calculator for rental property purchases. Compute DSCR (rent ÷ PITIA), NOI-based DSCR, cash flow and the max loan at your lender's target ratio.

  • Investor financing

DSCR Cash-Out Refinance Calculator

New Added

Estimate cash out, new payment and DSCR on a rental cash-out refinance. Free calculator for BRRRR investors using DSCR loans.

  • Investor financing

Fix and Flip Calculator

New Added

Free fix-and-flip calculator with hard money loan, points, holding and selling costs. See profit, cash needed, ROI, annualized ROI and the 70% rule max offer.

  • Investor financing

Mortgage Note Value Calculator

New Added

Calculate what to pay for a seller-financed or private mortgage note at your target yield, including a balloon. See price, discount and remaining cash flow.

  • Investor financing

Buying & selling

Seller Net Proceeds Calculator

New Added

Estimate what you'll walk away with when you sell a home: commissions, concessions, closing costs, transfer tax and mortgage payoff. Free seller net sheet.

  • Buying & selling

FHA Loan Calculator

New Added

FHA mortgage calculator with upfront and annual MIP. Estimate your monthly payment, total loan, MIP duration and cash to close. Rates last reviewed Oct 2026.

  • Buying & selling

Conventional Mortgage & PMI Calculator

New Added

Calculate a conventional mortgage payment with PMI, plus when you can request PMI removal (80% LTV) and when it cancels automatically (78% LTV).

  • Buying & selling

Balloon Mortgage Calculator

New Added

Calculate the monthly payment and balloon payment on a balloon mortgage or seller-financed note, such as a 30-year amortization due in 5 years.

  • Buying & selling

Landlord & PM

Rent Late Fee Calculator

New Added

Calculate a rent late fee from your lease terms: flat or percentage fee, grace period, daily fees and caps. Math only; check your state and local limits.

  • Landlord & PM

Prorated Rent Calculator

New Added

Calculate prorated rent for a mid-month move-in or move-out using actual days in the month, a 30-day month or a 365-day year.

  • Landlord & PM

Property Management Fee Calculator

New Added

Calculate the true cost of property management: monthly fees, leasing and renewal fees, maintenance markup, effective fee rate and owner net income.

  • Landlord & PM

Security Deposit Return Deadline by State (coming soon)

A state-by-state security deposit return deadline lookup is coming soon to DoorPrompts after legal review. Get notified when it launches.

  • Landlord & PM
  • Get notified