Mortgage calculators

Run the numbers before the numbers run you.

Analyze an investment, understand a payment, compare competing offers, or see how quickly extra principal changes a loan.

Choose a calculator

Four tools for four different decisions.

Every result updates instantly as you change the assumptions.

BRRRR deal analyzer

Model acquisition, rehab, rent, refinance proceeds, and cash left in the deal.

Analyze

Payment + amortization

See the full payment and how principal and interest change over time.

Calculate

Loan comparison

Compare payment, points, interest, and five-year borrowing cost.

Compare

Early payoff

Measure how an additional monthly payment could change time and interest.

Explore
BRRRR deal analyzer

Buy. Rehab. Rent. Refinance. Repeat.

Estimate how much capital remains after refinance costs and whether stabilized net operating income supports the new loan.

Cash left in the deal$12,50033.7% estimated cash-on-cash return
Total project cost
$319,000
Initial cash invested
$127,000
New refinance loan
$315,000
Net cash returned at refinance
$114,500
Monthly refinance payment
$2,149
Estimated monthly cash flow
$351
Estimated DSCR
1.16
Equity after refinance
$105,000
70% rule max purchase
$234,000
Review this investment scenario

Educational estimate only. Actual qualification, costs, and loan terms vary.

Payment + amortization

See the complete payment and where it goes.

Use the actual mortgage insurance and program-fee estimates from a quote when available. The full amortization schedule uses the financed loan amount.

Estimated total payment$3,679Principal & interest $2,854
Base loan amount
$440,000
Financed program fee
$0
Total financed amount
$440,000
Taxes + insurance
$825
HOA dues
$0
Mortgage insurance / mo.
$0
Estimated cash to close
$119,000
Total scheduled interest
$587,379
Build my purchase plan

Educational estimate only. Actual qualification, costs, and loan terms vary.

First 10 years of amortization

Annual principal, interest, and remaining balance.

YearPrincipalInterestBalance
1$4,689$29,557$435,311
2$5,016$29,230$430,295
3$5,365$28,881$424,930
4$5,739$28,507$419,191
5$6,138$28,108$413,053
6$6,566$27,680$406,488
7$7,023$27,223$399,465
8$7,512$26,734$391,953
9$8,035$26,211$383,919
10$8,594$25,652$375,324
Mortgage loan comparison

Compare the cost—not only the rate.

Compare rate, points, lender fees, credits, payment, and the cost over the period you expect to keep the loan.

Loan A
Loan B
Alternative

Loan A

$2,919/mo.
Net upfront lender cost
$1,500
Cost over 5 years
$149,062
Balance after 5 years
$422,441
Lifetime interest
$600,729
Lower 5-year borrowing cost

Loan B

$2,771/mo.
Net upfront lender cost
$8,250
Cost over 5 years
$144,511
Balance after 5 years
$420,018
Lifetime interest
$547,462

The higher-upfront-cost option reaches estimated break-even in month 36. Borrowing cost is interest plus net lender charges; taxes, insurance, third-party settlement costs, and the time value of money are excluded.

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Early payoff

See what an extra payment could save.

Apply an additional amount to principal each month and compare the resulting payoff timeline.

Estimated interest saved$116,1386 yr 4 mo sooner
Regular principal & interest
$2,491
New monthly payment
$2,791
Estimated payoff time
20 yr 8 mo
Interest with extra payments
$310,981
Review my refinance options

Educational estimate only. Actual qualification, costs, and loan terms vary.

Your scenario is more than a formula

Bring us the result. We’ll help pressure-test the assumptions.

Rates, qualification, property details, reserves, and loan costs can change the outcome.

Discuss my scenario Upload a lender quote