Biweekly Mortgage Calculator
Compare a standard monthly mortgage with a biweekly payment rhythm and estimate how much interest and time you could save.
Results
Biweekly Payment
$985.15
Standard monthly payment: $1,970.30
Interest Saved
$85,618.23
Time Saved
67 months
Amortization Schedule
| Month | Principal | Interest | Balance |
|---|---|---|---|
| 1 | $467.83 | $1,666.67 | $319,532.18 |
| 2 | $470.26 | $1,664.23 | $319,061.91 |
| 3 | $472.71 | $1,661.78 | $318,589.20 |
| 4 | $475.17 | $1,659.32 | $318,114.03 |
| 5 | $477.65 | $1,656.84 | $317,636.38 |
| 6 | $480.14 | $1,654.36 | $317,156.25 |
| 7 | $482.64 | $1,651.86 | $316,673.61 |
| 8 | $485.15 | $1,649.34 | $316,188.46 |
| 9 | $487.68 | $1,646.81 | $315,700.78 |
| 10 | $490.22 | $1,644.27 | $315,210.57 |
| 11 | $492.77 | $1,641.72 | $314,717.80 |
| 12 | $495.34 | $1,639.16 | $314,222.46 |
How the biweekly mortgage calculation works
This page first calculates your standard fixed monthly payment, then converts that structure into a biweekly strategy by applying the equivalent of one extra monthly payment per year. That mirrors how many real biweekly plans accelerate payoff.
The resulting schedule shows how quickly the balance falls once extra principal starts hitting the loan consistently. The comparison is especially helpful when you want to test whether a faster payoff fits your budget.
When a biweekly plan makes sense
Biweekly payment can be a good fit when your income arrives every two weeks and you want a simple system that nudges more money toward principal. It can also be useful if you like the discipline of a set repayment rhythm.
If cash flow is irregular, a flexible monthly extra payment strategy may be easier to sustain. The best approach is the one you can repeat for years without putting emergency reserves at risk.
Frequently Asked Questions
A biweekly mortgage plan usually means paying half of your regular monthly payment every two weeks. Because there are 26 biweekly periods in a year, you effectively make 13 monthly payments instead of 12.