Property calculators
Decide between renting and buying, see what you can afford, check rental yield, and work out the payback on solar or an EV.
5 calculators
Mortgage payment
Full monthly payment: principal, interest, taxes, and insurance.
OpenAffordability
See the home price your income can support.
OpenRent vs buy
Compare renting against buying over your time horizon.
OpenRenovation
Budget a renovation with a realistic range and contingency.
OpenSolar payback
How many years until solar or an EV pays for itself.
Open