methodology/calculations
Calculation Methodology
Fair Mortgage Calculator provides educational planning estimates for U.S. mortgage payments, U.S. home affordability, India home loan EMI and India home loan budget estimates.
These calculators provide educational planning estimates. They are not loan approvals, pre-approvals, lender offers, live rate quotes, tax advice, legal advice or financial advice.
What this site provides
The site includes a U.S. fixed-rate mortgage principal-and-interest calculator, a U.S. home affordability calculator, an India Home Loan EMI Calculator and an India Home Loan Eligibility Estimator. Each tool runs in the browser and uses user-entered assumptions rather than live lender or bank rate feeds.
U.S. Mortgage Payment Calculator
The U.S. mortgage payment calculator uses loan amount, fixed annual interest rate and loan term to estimate monthly principal and interest. It also shows total interest, total repayment, number of payments and yearly or monthly amortization schedule rows.
If the interest rate is 0 percent, the payment is principal divided by the number of monthly payments. Otherwise, the calculator uses the standard fixed-rate amortization formula. The payment calculator excludes property taxes, homeowners insurance, PMI, HOA fees, escrow changes, lender fees, discount points and changing-rate behavior.
U.S. Home Affordability Calculator
The home affordability calculator uses annual gross household income, monthly debts, down payment, rate, term, property-tax, homeowners-insurance, HOA and PMI assumptions, plus editable housing and total-debt planning guidelines.
It derives a monthly housing budget, subtracts included user assumptions, reverses the fixed-rate payment formula into an estimated mortgage amount and adds the entered down payment for an estimated home price. Default guideline percentages are editable budgeting assumptions, not universal underwriting rules.
India Home Loan EMI Calculator
The India Home Loan EMI Calculator uses loan amount, annual interest rate and loan tenure to estimate monthly EMI, total interest payable, total repayment and repayment schedule rows.
It uses a fixed-rate reducing-balance planning model and displays values with INR, lakh and crore grouping. It excludes floating-rate reset effects, lender charges, prepayments, insurance products, moratoriums, stamp duty, registration and property costs.
India Home Loan Eligibility Estimator
The India Home Loan Eligibility Estimator uses monthly income for planning, existing monthly EMIs, interest rate, tenure, down payment and a selected maximum share of income for all EMIs.
The method is: selected ratio multiplied by income, minus existing EMIs, equals the available planned home-loan EMI. That EMI is converted to an estimated loan amount, then the entered down payment is added only for a simple property-budget estimate. A default ratio such as 40 percent is an editable planning assumption, not a bank rule.
Precision, rounding and limitations
Numeric calculations retain precision internally, while currency values are rounded for display by the site's formatters. Repayment schedules may adjust the final row so the ending balance displays as zero. Entered rates are illustrative user-provided rates, not live bank or lender feeds. Use real lender disclosures and final terms before making a decision.
Sources and references
External sources support terminology and consumer context only. They are not endorsements, partnerships or lender offers.