Calculators
Mortgage Payoff Calculators
Extra payments, biweekly schedules, paying off vs. investing, multiple extra payments, HELOC acceleration, and reverse mortgage payoff — all free, no signup.
Mortgage payoff calculators
Live now — real month-by-month amortization, not a rough estimate.
Online Mortgage Payoff Calculator
LiveSee your new payoff date and interest saved from extra payments or a lump sum.
Biweekly Mortgage Payoff Calculator
LiveSee how true biweekly payments shorten your loan — and why "semi-monthly" doesn't.
Mortgage Payoff vs Investing Calculator
LiveCompare paying down your mortgage faster vs. investing the difference instead.
Multiple Extra Payments Calculator
LiveSchedule several different extra payment amounts over time, instead of one flat extra amount.
HELOC-Accelerated Payoff Calculator
LiveModels the "velocity banking" HELOC-acceleration strategy — and whether it actually saves money.
Reverse Mortgage Payoff Calculator
LiveModels how a reverse mortgage balance grows over time — the opposite direction from every other tool here.
From the blog
Deep dives to help you get more out of every calculator above.
Beyond the Basic Payoff Calculator: HELOC Acceleration, Reverse Mortgages, and Other Options
Does "velocity banking" actually save money, and how a reverse mortgage's math runs the opposite direction from every payoff strategy here.
Read more →Should You Recast or Refinance? The Other Ways to Lower Your Payment
Two options that don't require extra monthly cash flow — and when each one actually makes sense.
Frequently asked questions
Before you pick a payoff strategy.
Which mortgage payoff calculator should I use?
Start with the Online Mortgage Payoff Calculator for a single extra payment or lump sum. Use Biweekly if you're switching payment frequency, Multiple Extra Payments if your extra amounts change over time, and Mortgage Payoff vs. Investing if you're deciding between the two entirely.
Is HELOC acceleration ("velocity banking") actually worth it?
It depends heavily on your cash flow discipline and the rate gap between your HELOC and mortgage — see our HELOC-Accelerated Payoff Calculator and the linked blog post for the full math rather than a blanket answer.
Does a reverse mortgage work like the other payoff calculators here?
No — a reverse mortgage balance grows over time instead of shrinking, the opposite of every other tool on this page. Use the dedicated Reverse Mortgage Payoff Calculator rather than trying to adapt a standard payoff tool.
Are these calculators free?
Yes — every calculator on this page is free to use, with no signup or account required.