FINANCIAL CALCULATOR

Mortgage Calculator

Estimate your monthly mortgage payment, cash needed at closing and how extra principal could change the payoff timeline.

INPUT

Mortgage details

USD
$50,000$5,000,000
20%
$0$450,000
0.10%15.00%
PLANNING EXTRAS

Optional costs and payoff scenario

MONTHLY PAYMENT

Your estimated payment

$2,750.44Estimated monthly housing payment
Principal & interest$2,275.4482.7%
Property tax$375.0013.6%
Home insurance$100.003.6%
Total$2,750.44100%
Loan summary
Home price$450,000
Down payment$90,000
Loan amount$360,000
Loan term30 years
Interest rate6.500%
Monthly P&I$2,275.44
Cash & loan cost
Closing costs (3.00%)$13,500
Estimated cash needed$103,500
Total interest if held to term$459,160
Principal + interest$819,160
Current property tax / year$4,500
Current insurance / year$1,200
EXTRA PAYMENT SCENARIO

Add extra principal to test a faster payoff.

Extra payments are modeled as principal-only payments after the scheduled payment.

Payoff30 yr
Interest with scenario$459,160
Interest saved$0
Yearly amortizationPrincipal, interest and ending balanceView schedule
YearPrincipalInterestEnding balance
1$4,024$23,282$355,976
2$4,293$23,012$351,683
3$4,581$22,725$347,102
4$4,888$22,418$342,214
5$5,215$22,090$337,000
6$5,564$21,741$331,435
7$5,937$21,368$325,498
8$6,334$20,971$319,164
9$6,759$20,547$312,405
10$7,211$20,094$305,194
11$7,694$19,611$297,500
12$8,210$19,096$289,290
13$8,759$18,546$280,531
14$9,346$17,959$271,185
15$9,972$17,333$261,213
16$10,640$16,666$250,573
17$11,352$15,953$239,221
18$12,113$15,193$227,108
19$12,924$14,382$214,184
20$13,789$13,516$200,395
21$14,713$12,592$185,682
22$15,698$11,607$169,984
23$16,750$10,556$153,234
24$17,871$9,434$135,363
25$19,068$8,237$116,295
26$20,345$6,960$95,950
27$21,708$5,598$74,242
28$23,162$4,144$51,081
29$24,713$2,593$26,368
30$26,368$938$0

Estimates only. PMI is entered manually because lender pricing varies. Property taxes and insurance can change over time. Maintenance, utilities, lender-specific fees, prepaid items and escrow adjustments are not included unless you enter them elsewhere.

HOW IT WORKS

Clear math, visible assumptions.

CalcStreet uses the standard fixed-rate amortization formula for principal and interest, then adds the ownership costs you enter. Optional PMI, closing-cost and extra-principal assumptions stay visible instead of being hidden in a score.

M = P × [r(1+r)ⁿ] ÷ [(1+r)ⁿ − 1]P = loan amount · r = monthly rate · n = number of payments
CALCSTREET TOOLKIT

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