Switching to bi-weekly payments on a $400,000, 6.5% interest, 30-year mortgage will shorten the loan by 5 years and 10 months and save $116,341 in interest.
"on a $400,000 mortgage at 6.5%. Switching to bi-weekly payments alone shaves about five years and 10 months off your 30-year loan and reduces the amount you pay in interest by $116,341."