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KeyMonth

See the real monthly cost of a home, then plan the house itself.

KeyMonth is a mortgage calculator for the US, India and the UK that shows the full monthly cost of a home: loan payment, taxes, insurance, PMI, HOA and maintenance, plus the cash needed up front. Its house planner turns your plot size, setbacks, bedrooms and floors into a furnished concept floor plan for each floor, with 3D views outside, inside and of every room.

KeyMonth mortgage calculator showing an estimated monthly cost of ₹55,069 split into EMI, property tax and maintenance.

What it does

  • Full monthly cost: loan payment, taxes, insurance, PMI, HOA and maintenance
  • Country rules for the US, India and the UK
  • Cash needed up front, shown alongside the monthly cost
  • House planner: a furnished concept floor plan for each floor from plot size, setbacks, bedrooms and floors
  • 3D views outside, inside each floor and of any single room, in four interior styles
  • Calculator inputs and saved scenarios stay in your browser

Estimates only. KeyMonth is not a lender and does not offer loans.

House plans are concepts, not drawings for construction.

Jump straight in

These links open KeyMonth on its own site, which has its own privacy policy and terms.

Screens

KeyMonth in action

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