Mortgage Calculator by FinanceRateCalc

Tracking since Apr 1, 2026.

Changelog

• May 4, 2026
  description

  Browse homes on Zillow, Redfin, or Realtor.com and instantly see your monthly mortgage payment — without leaving the page.
  
  This free extension automatically detects the listing price and calculates your payment in seconds. Built by a licensed banking professional with 23 years of experience.
  
  Features:
  - Auto-detects home price on Zillow, Redfin, and Realtor.com
  - Adjust down payment, interest rate, and loan term
  - Shows monthly payment, total interest, and total cost
  - Links to full amortization schedule
  - 100% free — no account, no signup, no data stored
  
  How it works:
  1. Browse to any home listing
  2. Click the FinanceRateCalc icon
  3. See your instant mortgage calculation
  
  Powered by FinanceRateCalc.com — free financial tools built by a licensed banking professional.

  Built by a licensed banker with 23 years of experience. Instantly see the real cost of any home on Zillow, Redfin, or Realtor.com — without leaving the page.
  
  🔥 NEW: FRC Buyer Demand Score
  See how hot or cold a listing really is — based on days on market and price reductions. No more guessing.
  • 🔥 HOT — High demand, moves fast
  • 🟡 WARM — Moderate interest
  • 🔵 COOLING — Slowing down
  • ❄️ COLD — Low demand, negotiate hard
  
  📊 3 Powerful Tools in One Extension:
  
  1. MORTGAGE CALCULATOR
  • Auto-detects listing price from Zillow, Redfin, and Realtor.com
  • Monthly P&I payment, total interest, total cost
  • The Shock Box: see exactly how much the bank keeps vs. how much you borrow
  • Visual principal vs. interest breakdown
  
  2. AMORTIZATION TABLE
  • Year-by-year breakdown of every payment
  • See exactly how much goes to interest in Year 1 vs Year 30
  • Full 30-year payment schedule
  
  3. LANDLORD CASH FLOW CALCULATOR
  • Enter rent income, taxes, insurance, HOA, vacancy rate
  • Get net monthly cash flow and annual return
  • Cash-on-cash return calculation
  • Know if a property makes sense as a rental before you buy
  
  ✅ 100% Free — No sign-up, no account, no data collected
  ✅ Works on Zillow, Redfin, and Realtor.com
  ✅ Built by a licensed banking professional — 23 years experience
  
  More free tools at financeratecalc.com

• May 4, 2026
  short_description

  Instantly calculate mortgage payments for any home on Zillow, Redfin, or Realtor.com. Built by a licensed banking professional.

  Instantly calculate mortgage payments for any home on Zillow, Redfin, or Realtor.com.

• May 4, 2026
  category

  productivity/developer

  productivity/tools

Permissions & access

Permissions

activeTab

Host access

https://www.zillow.com/*, https://www.redfin.com/*, https://www.realtor.com/*

Screenshots

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