Ratelock home
  • Mortgage Calculator
  • 15 vs 30 Year Mortgage
  • Move-Up Calculator
  • Loan Comparison
  • Prepayment Calculator
  • Refinance Calculator
  • Rent vs Buy

Seven calculators

Which question are you answering?

Pick one to see what it works out, then open it with your own numbers.

01Rent vs Buy

Should I rent or buy?

Compare renting and buying with an honest look at the tax benefits.

  • The true monthly cost of each, side by side
  • The mortgage interest deduction against the standard deduction
  • The SALT cap, state by state
Open Rent vs Buy

02Mortgage Calculator

What will the whole payment be?

The real monthly cost of a mortgage, not just the loan.

  • Principal, interest, property tax, insurance, PMI and HOA
  • Total interest, your payoff date and the amortization schedule
  • When PMI drops off
Open Mortgage Calculator

0315 vs 30 Year Mortgage

Is the shorter term worth it?

An honest comparison of a 15-year and a 30-year mortgage.

  • Both terms at their real rates
  • The savings by the year you sell or refinance
  • A third option: a 30-year paid at the 15-year payment
Open 15 vs 30 Year Mortgage

04Loan Comparison

Which offer costs less?

Line up the loan offers you’ve been quoted, side by side.

  • Monthly payment, total cost and interest for each
  • Prepayments, refinances and recasts on one timeline
  • Which loan costs less over its life
Open Loan Comparison

05Prepayment Calculator

What do extra payments save?

See how paying extra changes your payoff date and the total you pay.

  • One-time, monthly or yearly extra payments
  • Your new payoff date and the interest you save
  • A refinance or a recast, on any of your loans
Open Prepayment Calculator

06Refinance Calculator

Does refinancing pay?

Find out whether a new loan beats the one you have.

  • The new rate, term and closing costs against keeping your loan
  • Total cost and payoff date for each
  • With or without extra prepayments
Open Refinance Calculator

07Move-Up Calculator

What does trading up really cost?

Already own a home and want a bigger one? See the payment shock first.

  • Your current payment against the new one at today’s rate
  • What your sale nets after commission and closing costs
  • The price ceiling your budget actually supports
Open Move-Up Calculator

Rent vs Buy, 1 of 7

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