Biweekly Mortgage Calculator
See how half payments every two weeks shorten your loan.
Enter your values
Enter the loan amount in $.
Enter the interest rate in %.
Enter the term in years.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Payoff time
- 24 yr 5 mo
- Biweekly payment
- $923.58
- Interest saved
- $80,268.33
- Years saved
- 5.6 years
Working
- 113 monthly payments per year instead of 12
Quick answer
Twenty-six half payments equal thirteen monthly payments a year, so the extra payment cuts years off the loan.
biweekly payment = monthly payment / 2, paid 26 times a year
At a glance
| What it does | See how half payments every two weeks shorten your loan. |
|---|---|
| Category | Finance |
| Inputs needed | Loan amount, Interest rate, Term |
| Main output | Payoff time |
| Formula | biweekly payment = monthly payment / 2, paid 26 times a year |
| Cost | Free — no sign-up, no download |
How to use the Biweekly Mortgage Calculator
- 1Enter your loan balance, rate and remaining term.
- 2Pay half the monthly amount every two weeks.
- 3Confirm your servicer applies extra funds to principal immediately.
Inputs explained
- Loan amount($)
- Enter the loan amount in $.
- Interest rate(%)
- Enter the interest rate in %.
- Term(years)
- Enter the term in years.
Worked example
Using the values the calculator loads with:
Inputs
- Loan amount300000 $
- Interest rate6.25 %
- Term30 years
Results
- Payoff time24 yr 5 mo
- Biweekly payment$923.58
- Interest saved$80,268.33
- Years saved5.6 years
- 13 monthly payments per year instead of 12
Frequently asked questions
Do all lenders allow this?
Most do, though some charge for a formal biweekly plan — you can replicate it free by paying 1/12 extra monthly.
Is it better than investing the difference?
If your mortgage rate exceeds your expected after-tax investment return, paying down wins.
What do I need to enter into the Biweekly Mortgage Calculator?
Just 3 values: loan amount, interest rate, term. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Biweekly Mortgage Calculator work out the answer?
Twenty-six half payments equal thirteen monthly payments a year, so the extra payment cuts years off the loan. It applies the formula biweekly payment = monthly payment / 2, paid 26 times a year and shows the working so you can check each step by hand.
Is the Biweekly Mortgage Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.