Calculator guide
Who this calculator is for
Borrowers comparing fixed monthly loan payments across the US, Australia, Canada, the UK and other high-value lending markets.
Estimate a fixed monthly payment before applying for a loan, refinancing, changing the term or making a prepayment.
Formula used
Payment = P x r x (1 + r)^n / ((1 + r)^n - 1), where P is principal, r is monthly interest rate and n is number of payments.
The calculator keeps the math visible so users can understand what changed when they adjust rate, time, contribution, tax rate or loan amount.
Example: $350,000 loan at 6.5% for 30 years
How to get a useful result
For the best estimate, use realistic rates, verify lender or tax assumptions, and run at least one conservative scenario. This makes the page more useful than a bare calculator and helps visitors stay longer because they can compare outcomes instead of leaving after one number.
Frequently asked questions
You can estimate fixed monthly payments for mortgages, auto loans, personal loans, student loans and other amortized loans.
No. It estimates principal and interest. For mortgages, add property tax, homeowners insurance, HOA dues and PMI separately.
A longer term spreads principal over more months, but interest accrues for longer, so total interest usually rises.