Property calculators
Work through mortgage payments, purchase cash requirements and rental performance before comparing real offers.
Choose the right tool
Use repayment tools for principal-and-interest mortgages, the interest-only tool for interest-only payments, and the rental tools to distinguish gross yield from net cash flow.
Before you calculate
Property value, rebuild cost and mortgage balance describe different things. These estimates do not replace lender quotes, valuations or current tax calculations.
18 calculators
Mortgage repayment ↗
Estimate capital-and-interest mortgage payments at a constant rate. Excludes arrangement fees, insurance and rate changes.
PropertyGross rental yield ↗
Calculate gross yield before costs, vacancy, financing and tax.
PropertyLoan to value ↗
Express borrowing as a percentage of property value.
PropertyDeposit percentage ↗
Calculate the deposit as a share of the purchase price.
PropertyDeposit needed ↗
Calculate a deposit at a chosen percentage.
PropertyInterest-only mortgage payment ↗
Estimate the monthly interest payment while the mortgage principal stays outstanding.
PropertyFirst mortgage payment interest share ↗
See what proportion of a first monthly payment goes to interest.
PropertyProperty equity ↗
Estimate ownership value remaining after outstanding secured borrowing.
PropertyHouse sale net proceeds ↗
Estimate cash released by selling a property after the listed costs.
PropertyHome purchase cash required ↗
Budget the cash needed for a deposit plus separately entered purchase costs.
PropertyNet rental yield before finance ↗
Measure rental income after operating costs relative to purchase price.
PropertyRental monthly cash flow ↗
Estimate monthly rental cash left after expenses, debt payment and reserve.
PropertyRental vacancy loss ↗
Budget gross rent forgone during a specified vacancy period.
PropertyRent budget from income ↗
Calculate a rent budget using a percentage you choose.
PropertyMonthly rent increase amount ↗
Calculate the extra rent due each month under a proposed percentage rise.
PropertyProperty price per square metre ↗
Compare property price relative to recorded floor area.
PropertyMortgage fee monthly equivalent ↗
Spread a one-off fee across your chosen comparison period.
PropertySimple bridging interest cost ↗
Model simple monthly interest for a short-term borrowing scenario.