Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Mortgage Payment Calculator
Estimate the full monthly cost of owning a home — principal, interest, property tax, and homeowner's insurance — bundled into the single number lenders call PITI. Enter your loan amount, interest rate, loan term in years, annual property tax, and annual home insurance, and the calculator returns the monthly payment you would actually send (excluding PMI and HOA fees, which vary widely). This is the figure to compare against your monthly budget when deciding whether a home is affordable, and the figure mortgage lenders use to qualify you against debt-to-income limits.
Compound Interest Calculator
Project the future value of a lump-sum investment when interest is reinvested each year using A = P · (1 + r)ᵗ. The simplest compounding model — assumes annual compounding, a constant rate, and no additional contributions or withdrawals.
Key differences
| Mortgage Payment Calculator | Compound Interest Calculator | |
|---|---|---|
| Category | Financial | Economics |
| Inputs required | 5 | 3 |
| Result | Monthly Payment (PITI) ($) | Final Amount ($) |
| What it does | Estimate the full monthly cost of owning a home — principal, interest, property tax, and homeowner's insurance — bundled into the single number lenders call PITI. Enter your loan amount, interest rate, loan term in years, annual property tax, and annual home insurance, and the calculator returns the monthly payment you would actually send (excluding PMI and HOA fees, which vary widely). This is the figure to compare against your monthly budget when deciding whether a home is affordable, and the figure mortgage lenders use to qualify you against debt-to-income limits. | Project the future value of a lump-sum investment when interest is reinvested each year using A = P · (1 + r)ᵗ. The simplest compounding model — assumes annual compounding, a constant rate, and no additional contributions or withdrawals. |