Mortgage math, shown in full
Calculators for the decisions that come after you have a mortgage: recasting after a lump sum, refinancing, paying it off early or investing, and clearing a HELOC. Every formula is on the page.
Mortgage Recast Calculator
See your new payment after a lump sum, and what recasting costs compared with simply prepaying.
Recast vs Refinance
Compare payments, break-even, and total cost of recasting against refinancing.
Coming soonPay Off Mortgage or Invest
Compare net worth from prepaying the mortgage against investing the same cash.
Coming soonHELOC Payoff Calculator
Plan the jump from interest-only to full payments and how fast you can clear the line.
Coming soonBiweekly Mortgage Calculator
See how half-payments every two weeks shorten the loan and cut interest.
Coming soon