Free calculator
Biweekly Payment Calculator
A biweekly payment calculator halves your monthly payment and pays it every two weeks. That yields 26 half-payments a year, which shortens the term and trims the interest.
The lowest rates are only available to the most qualified applicants.
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Enter your numbers and press Calculate. Nothing you type leaves your browser.
The lowest rates are only available to the most qualified applicants.
Advertising disclosure: Loancalculated may receive a referral fee if you apply through the link above. That fee does not change the rate you are offered, and it does not change our content. We are not a lender. Read the full disclosure.
How this calculator works
Biweekly payments split the monthly payment in two and pay half every two weeks. A year holds 26 two-week periods, so you make 26 half-payments — the same as 13 monthly payments instead of 12.
Monthly payment: Payment = P × i ÷ (1 − (1 + i)−n).
Biweekly payment = payment ÷ 2. Using the biweekly rate (annual rate ÷ 26 ÷ 100), the number of periods is:
N = −ln(1 − i × P ÷ (payment ÷ 2)) ÷ ln(1 + i).
The extra payment each year shortens the term and lowers total interest. When the half-payment is not enough to cover the interest for the period, the balance stops falling.
Enter your own rate; pricing varies by lender and credit profile.