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Amortization Schedule Calculator

Educational calculators — always consult a licensed professional before making financial decisions.

Your loan

01Loan amount

What you borrow, not the home price: the price minus your down payment. On an existing loan, use the original balance from your mortgage note.

$
$1K$10M
02Interest rate

Copy it from your mortgage note or closing disclosure. It sets how much of each early payment goes to interest rather than principal.

%
0.1%20%
03Loan term

The term you originally signed for. A longer term lowers the base payment and adds rows — and interest — to the schedule.

Standard US mortgage term. Lowest monthly payment but highest total interest cost.

360 scheduled monthly payments

04Extra monthly payment

Optional. Anything paid on top of the required payment goes straight to principal, so the schedule ends sooner. Leave at 0 to see the base schedule.

$
$0$100K

Monthly Payment

$2,076

Base payment — principal + interest

Total interest$427,185
Total paid$747,185
Interest saved$0
Time saved0 mo

Loan Summary

Loan amount$320,000
Loan term30 years
Interest rate6.75%
Extra/mo$0

Principal vs. Interest Over Time

PrincipalInterest

Year-by-Year Summary

YearPrincipalInterestBalance
1$3,410$21,496$316,590
2$3,648$21,258$312,942
3$3,902$21,004$309,040
4$4,174$20,733$304,866
5$4,464$20,442$300,402
6$4,775$20,131$295,627
7$5,107$19,799$290,520
8$5,463$19,443$285,057
9$5,843$19,063$279,213
10$6,250$18,656$272,963
11$6,685$18,221$266,278
12$7,151$17,755$259,127
13$7,649$17,257$251,478
14$8,181$16,725$243,296
15$8,751$16,155$234,545
16$9,360$15,546$225,185
17$10,012$14,894$215,173
18$10,709$14,197$204,463
19$11,455$13,451$193,008
20$12,253$12,654$180,756
21$13,106$11,800$167,650
22$14,018$10,888$153,632
23$14,994$9,912$138,638
24$16,038$8,868$122,600
25$17,155$7,751$105,445
26$18,349$6,557$87,095
27$19,627$5,279$67,468
28$20,994$3,912$46,474
29$22,455$2,451$24,019
30$24,019$887$0
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A full PDF breakdown of these numbers — yours to keep or hand to a contractor.

Estimates for educational purposes only. Actual payoff may vary. Consult a licensed mortgage professional.

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From the blog

Amortization Schedule Calculator is built and maintained by the RealCostIQ editorial team. Cost ranges and rates are checked against published industry data and contractor quotes, and revised when the underlying figures move. Read our data methodology or more about who builds this. Every calculation runs in your browser — no account, and none of your inputs are stored.

Cost ranges and rates here are checked against contractor quotes and published industry data. If a number still looks off, email Support@RealCostIQ.com and we'll review and fix it.