财富计算器

15-Year Mortgage Calculator

A 15-year mortgage pairs a higher monthly payment with dramatically lower lifetime interest — see exactly how the trade-off plays out at your loan amount and rate.

$
$
Amount paid upfront. The loan covers the rest.
%
The calendar year the loan begins (assumed to start in January).
$
$
$
$
Extra principal paid every month shortens your loan.
$
每月还款¥3,338
本金和利息
¥2,788
房产税
¥400
保险
¥150
贷款金额
¥320,000
总利息
¥181,758
还款总额
¥501,758
还清时间
15 yr
Payoff date
Dec 2039
节省利息（额外还款）
¥0
缩短时间（额外还款）
0 mo

在 ¥320,000 的贷款下，你每月的本金和利息为 ¥2,788，含税险的每月总还款为 ¥3,338。在整个期限内你将支付 ¥181,758 的利息。

Principal vs. interest over time

Each year's payment split — watch interest shrink as the balance falls.

View data table
YearPrincipalInterest
1$13,034$20,416
2$13,907$19,543
3$14,839$18,612
4$15,832$17,618
5$16,893$16,558
6$18,024$15,426
7$19,231$14,219
8$20,519$12,931
9$21,893$11,557
10$23,359$10,091
11$24,924$8,527
12$26,593$6,857
13$28,374$5,076
14$30,274$3,176
15$32,303$1,149

Monthly payment breakdown

Total$3,338
  • Principal & Interest$2,788
  • Property Tax$400
  • Insurance$150
View data table
CategoryValue
Principal & Interest$2,788
Property Tax$400
Insurance$150

Balance: with vs. without extra payments

View data table
YearWithout extraWith extra
0$318,946$318,946
1$310,304$310,304
1$301,280$301,280
2$293,059$293,059
3$283,273$283,273
3$273,056$273,056
4$262,388$262,388
5$252,667$252,667
5$241,098$241,098
6$229,018$229,018
7$216,405$216,405
7$203,234$203,234
8$191,234$191,234
9$176,952$176,952
9$162,039$162,039
10$146,467$146,467
11$130,208$130,208
11$115,394$115,394
12$97,762$97,762
12$79,352$79,352
13$60,129$60,129
14$42,613$42,613
14$21,767$21,767
15$0$0

Payment sensitivity to interest rate

How your principal & interest changes as rates move.

View data table
Rate %Monthly P&I
4$2,288
4$2,327
4$2,367
4$2,407
5$2,448
5$2,489
5$2,531
5$2,572
6$2,615
6$2,657
6$2,700
6$2,744
7$2,832
7$2,876
7$2,921
8$2,966
8$3,012
8$3,058
8$3,104
9$3,151
9$3,198
9$3,246
9$3,293
10$3,342

Full amortization schedule

Every monthly payment, grouped by year — expand a year to see its principal, interest, and remaining balance.

Year 1Principal $13,034 · Interest $20,416 · Balance $306,966
MonthPaymentPrincipalInterestBalance
1$2,788$1,054$1,733$318,946
2$2,788$1,060$1,728$317,886
3$2,788$1,066$1,722$316,820
4$2,788$1,071$1,716$315,749
5$2,788$1,077$1,710$314,672
6$2,788$1,083$1,704$313,588
7$2,788$1,089$1,699$312,500
8$2,788$1,095$1,693$311,405
9$2,788$1,101$1,687$310,304
10$2,788$1,107$1,681$309,197
11$2,788$1,113$1,675$308,085
12$2,788$1,119$1,669$306,966
Year 2Principal $13,907 · Interest $19,543 · Balance $293,059
MonthPaymentPrincipalInterestBalance
13$2,788$1,125$1,663$305,841
14$2,788$1,131$1,657$304,710
15$2,788$1,137$1,651$303,573
16$2,788$1,143$1,644$302,430
17$2,788$1,149$1,638$301,280
18$2,788$1,156$1,632$300,125
19$2,788$1,162$1,626$298,963
20$2,788$1,168$1,619$297,795
21$2,788$1,174$1,613$296,620
22$2,788$1,181$1,607$295,439
23$2,788$1,187$1,600$294,252
24$2,788$1,194$1,594$293,059
Year 3Principal $14,839 · Interest $18,612 · Balance $278,220
MonthPaymentPrincipalInterestBalance
25$2,788$1,200$1,587$291,858
26$2,788$1,207$1,581$290,652
27$2,788$1,213$1,574$289,439
28$2,788$1,220$1,568$288,219
29$2,788$1,226$1,561$286,993
30$2,788$1,233$1,555$285,760
31$2,788$1,240$1,548$284,520
32$2,788$1,246$1,541$283,273
33$2,788$1,253$1,534$282,020
34$2,788$1,260$1,528$280,760
35$2,788$1,267$1,521$279,494
36$2,788$1,274$1,514$278,220
Year 4Principal $15,832 · Interest $17,618 · Balance $262,388
MonthPaymentPrincipalInterestBalance
37$2,788$1,281$1,507$276,940
38$2,788$1,287$1,500$275,652
39$2,788$1,294$1,493$274,358
40$2,788$1,301$1,486$273,056
41$2,788$1,308$1,479$271,748
42$2,788$1,316$1,472$270,432
43$2,788$1,323$1,465$269,109
44$2,788$1,330$1,458$267,780
45$2,788$1,337$1,450$266,443
46$2,788$1,344$1,443$265,098
47$2,788$1,352$1,436$263,747
48$2,788$1,359$1,429$262,388
Year 5Principal $16,893 · Interest $16,558 · Balance $245,495
MonthPaymentPrincipalInterestBalance
49$2,788$1,366$1,421$261,021
50$2,788$1,374$1,414$259,648
51$2,788$1,381$1,406$258,267
52$2,788$1,389$1,399$256,878
53$2,788$1,396$1,391$255,482
54$2,788$1,404$1,384$254,078
55$2,788$1,411$1,376$252,667
56$2,788$1,419$1,369$251,248
57$2,788$1,427$1,361$249,821
58$2,788$1,434$1,353$248,387
59$2,788$1,442$1,345$246,945
60$2,788$1,450$1,338$245,495
Year 6Principal $18,024 · Interest $15,426 · Balance $227,471
MonthPaymentPrincipalInterestBalance
61$2,788$1,458$1,330$244,037
62$2,788$1,466$1,322$242,572
63$2,788$1,474$1,314$241,098
64$2,788$1,482$1,306$239,616
65$2,788$1,490$1,298$238,127
66$2,788$1,498$1,290$236,629
67$2,788$1,506$1,282$235,123
68$2,788$1,514$1,274$233,609
69$2,788$1,522$1,265$232,087
70$2,788$1,530$1,257$230,557
71$2,788$1,539$1,249$229,018
72$2,788$1,547$1,241$227,471
Year 7Principal $19,231 · Interest $14,219 · Balance $208,240
MonthPaymentPrincipalInterestBalance
73$2,788$1,555$1,232$225,916
74$2,788$1,564$1,224$224,352
75$2,788$1,572$1,215$222,780
76$2,788$1,581$1,207$221,199
77$2,788$1,589$1,198$219,609
78$2,788$1,598$1,190$218,011
79$2,788$1,607$1,181$216,405
80$2,788$1,615$1,172$214,789
81$2,788$1,624$1,163$213,165
82$2,788$1,633$1,155$211,532
83$2,788$1,642$1,146$209,891
84$2,788$1,651$1,137$208,240
Year 8Principal $20,519 · Interest $12,931 · Balance $187,721
MonthPaymentPrincipalInterestBalance
85$2,788$1,660$1,128$206,580
86$2,788$1,669$1,119$204,912
87$2,788$1,678$1,110$203,234
88$2,788$1,687$1,101$201,548
89$2,788$1,696$1,092$199,852
90$2,788$1,705$1,083$198,147
91$2,788$1,714$1,073$196,432
92$2,788$1,724$1,064$194,709
93$2,788$1,733$1,055$192,976
94$2,788$1,742$1,045$191,234
95$2,788$1,752$1,036$189,482
96$2,788$1,761$1,026$187,721
Year 9Principal $21,893 · Interest $11,557 · Balance $165,828
MonthPaymentPrincipalInterestBalance
97$2,788$1,771$1,017$185,950
98$2,788$1,780$1,007$184,170
99$2,788$1,790$998$182,380
100$2,788$1,800$988$180,580
101$2,788$1,809$978$178,771
102$2,788$1,819$968$176,952
103$2,788$1,829$958$175,123
104$2,788$1,839$949$173,284
105$2,788$1,849$939$171,435
106$2,788$1,859$929$169,576
107$2,788$1,869$919$167,707
108$2,788$1,879$908$165,828
Year 10Principal $23,359 · Interest $10,091 · Balance $142,468
MonthPaymentPrincipalInterestBalance
109$2,788$1,889$898$163,938
110$2,788$1,900$888$162,039
111$2,788$1,910$878$160,129
112$2,788$1,920$867$158,209
113$2,788$1,931$857$156,278
114$2,788$1,941$847$154,337
115$2,788$1,952$836$152,386
116$2,788$1,962$825$150,424
117$2,788$1,973$815$148,451
118$2,788$1,983$804$146,467
119$2,788$1,994$793$144,473
120$2,788$2,005$783$142,468
Year 11Principal $24,924 · Interest $8,527 · Balance $117,544
MonthPaymentPrincipalInterestBalance
121$2,788$2,016$772$140,452
122$2,788$2,027$761$138,426
123$2,788$2,038$750$136,388
124$2,788$2,049$739$134,339
125$2,788$2,060$728$132,279
126$2,788$2,071$717$130,208
127$2,788$2,082$705$128,126
128$2,788$2,094$694$126,032
129$2,788$2,105$683$123,928
130$2,788$2,116$671$121,811
131$2,788$2,128$660$119,684
132$2,788$2,139$648$117,544
Year 12Principal $26,593 · Interest $6,857 · Balance $90,951
MonthPaymentPrincipalInterestBalance
133$2,788$2,151$637$115,394
134$2,788$2,162$625$113,231
135$2,788$2,174$613$111,057
136$2,788$2,186$602$108,871
137$2,788$2,198$590$106,673
138$2,788$2,210$578$104,463
139$2,788$2,222$566$102,242
140$2,788$2,234$554$100,008
141$2,788$2,246$542$97,762
142$2,788$2,258$530$95,504
143$2,788$2,270$517$93,234
144$2,788$2,283$505$90,951
Year 13Principal $28,374 · Interest $5,076 · Balance $62,577
MonthPaymentPrincipalInterestBalance
145$2,788$2,295$493$88,656
146$2,788$2,307$480$86,349
147$2,788$2,320$468$84,029
148$2,788$2,332$455$81,697
149$2,788$2,345$443$79,352
150$2,788$2,358$430$76,994
151$2,788$2,370$417$74,624
152$2,788$2,383$404$72,240
153$2,788$2,396$391$69,844
154$2,788$2,409$378$67,435
155$2,788$2,422$365$65,013
156$2,788$2,435$352$62,577
Year 14Principal $30,274 · Interest $3,176 · Balance $32,303
MonthPaymentPrincipalInterestBalance
157$2,788$2,449$339$60,129
158$2,788$2,462$326$57,667
159$2,788$2,475$312$55,192
160$2,788$2,489$299$52,703
161$2,788$2,502$285$50,201
162$2,788$2,516$272$47,685
163$2,788$2,529$258$45,156
164$2,788$2,543$245$42,613
165$2,788$2,557$231$40,056
166$2,788$2,571$217$37,486
167$2,788$2,584$203$34,901
168$2,788$2,598$189$32,303
Year 15Principal $32,303 · Interest $1,149 · Balance $0
MonthPaymentPrincipalInterestBalance
169$2,788$2,613$175$29,690
170$2,788$2,627$161$27,064
171$2,788$2,641$147$24,423
172$2,788$2,655$132$21,767
173$2,788$2,670$118$19,098
174$2,788$2,684$103$16,414
175$2,788$2,699$89$13,715
176$2,788$2,713$74$11,002
177$2,788$2,728$60$8,274
178$2,788$2,743$45$5,531
179$2,788$2,758$30$2,774
180$2,789$2,774$15$0

工作原理

输入你的数字，每月还款、摊还和还清日期会即时更新。所有计算都在你的浏览器本地完成，不会发送到任何服务器。

常见问题

每月还款包含哪些部分？

包含本金和利息，以及你填写的每月房产税、房屋保险和物业费。

额外还款为什么能省钱？

每一笔额外还款都直接冲抵本金，未来的利息按更小的余额计算，因此能减少总利息并缩短还款期数。

我的数据会被上传吗？

不会。所有计算都在你的浏览器中进行，你输入的内容不会离开你的设备。

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