Biweekly Mortgage Calculator

Switching from monthly to biweekly mortgage payments quietly squeezes one extra payment into every year, and that single change can cut years off your loan and save tens of thousands in interest. This tool shows exactly how much faster you reach full ownership.

The mechanics are simple: your standard monthly payment is split in half to set the biweekly amount. Because the calendar holds 26 biweekly periods, you end up making the equivalent of 13 monthly payments a year instead of 12. That thirteenth payment lands straight on your principal, and the smaller balance compounds into steadily growing interest savings across the life of the loan. The calculator charges interest every two weeks at the annual rate divided by 26 on the remaining balance, and compares the total with the interest on the regular 360-payment monthly schedule.

A few practical checks protect those gains. Some lenders attach a fee to biweekly plans, so confirm the terms with your mortgage provider first. Verify that payments are genuinely applied every two weeks rather than held and split from a monthly cycle, and weigh the full effect of cutting principal early, since that early reduction is what drives down total interest paid.