Bi-Weekly Mortgage Payment Calculator
Time and interest saved by switching from monthly to bi-weekly mortgage payments.
Every calculation runs locally in your browser. Some lenders charge a setup fee for biweekly payment plans, or hold payments until a full month's worth accrues instead of applying each one immediately — check your specific loan servicer's terms before switching.
Monthly payment
$1,799
360 months, $347,515 interest
Bi-weekly payment
$899
295 months, $273,849 interest
Interest saved
$73,665
Payoff 65 months (5.4 years) sooner
For informational and educational purposes only — not financial, investment, or tax advice, and not a substitute for consulting a qualified professional about your specific situation. TrueMeasureKit is not liable for decisions made based on these results. See our Terms of Service.
Why 26 half-payments beat 12 full ones
A year has 52 weeks, so paying half the monthly payment every two weeks works out to 26 half-payments — the equivalent of 13 full monthly payments a year instead of 12. That extra payment goes entirely to principal, and because it happens every year for the life of the loan, it compounds into a meaningfully earlier payoff without ever requiring a single larger payment, which is what makes this strategy easy to stick with compared to committing to a bigger monthly amount.
Frequently asked questions
How do biweekly payments pay off a mortgage faster?
Paying half your monthly payment every two weeks results in 26 half-payments a year — the equivalent of 13 full monthly payments instead of 12. That one extra payment a year is what shortens the loan.
Should I set this up myself or use my lender's biweekly program?
Confirm how your servicer applies biweekly payments — some hold the two half-payments until a full payment is reached rather than applying each one immediately, which reduces the benefit. Making one extra full payment a year yourself achieves the same result without that risk.