Calculators & Finance tool

Loan Interest Calculator

How much will you borrow, and over how many months? Enter amount, rate, and term to compare monthly payments and total interest.

Fixed-rate estimate; excludes fees and rate changes

Repayment methodCompare common loan repayment structures.

Loan amount

Display currency only. Amounts are not converted.Annual interest rate

Loan term

months

Fixed-payment amortization

The combined principal and interest payment stays nearly level each month.

Estimated result

Total repayment

$182,406.71

First payment$506.69

Final payment$506.69

Total interest$82,406.71

Monthly average$506.69

Estimate only. Fees, insurance, early-repayment charges, variable-rate changes, and lender-specific rounding are not included.

Monthly repayment schedule360 payments

Amounts are estimates

Month	Payment	Principal	Interest	Balance
1	$506.69	$131.69	$375.00	$99,868.31
2	$506.69	$132.18	$374.51	$99,736.14
3	$506.69	$132.67	$374.01	$99,603.46
4	$506.69	$133.17	$373.51	$99,470.29
5	$506.69	$133.67	$373.01	$99,336.62
6	$506.69	$134.17	$372.51	$99,202.44
7	$506.69	$134.68	$372.01	$99,067.77
8	$506.69	$135.18	$371.50	$98,932.59
9	$506.69	$135.69	$371.00	$98,796.90
10	$506.69	$136.20	$370.49	$98,660.70
11	$506.69	$136.71	$369.98	$98,523.99
12	$506.69	$137.22	$369.46	$98,386.77
13	$506.69	$137.73	$368.95	$98,249.04
14	$506.69	$138.25	$368.43	$98,110.79
15	$506.69	$138.77	$367.92	$97,972.02
16	$506.69	$139.29	$367.40	$97,832.73
17	$506.69	$139.81	$366.87	$97,692.91
18	$506.69	$140.34	$366.35	$97,552.58
19	$506.69	$140.86	$365.82	$97,411.71
20	$506.69	$141.39	$365.29	$97,270.32
21	$506.69	$141.92	$364.76	$97,128.40
22	$506.69	$142.45	$364.23	$96,985.95
23	$506.69	$142.99	$363.70	$96,842.96
24	$506.69	$143.52	$363.16	$96,699.44
25	$506.69	$144.06	$362.62	$96,555.37
26	$506.69	$144.60	$362.08	$96,410.77
27	$506.69	$145.14	$361.54	$96,265.63
28	$506.69	$145.69	$361.00	$96,119.94
29	$506.69	$146.24	$360.45	$95,973.70
30	$506.69	$146.78	$359.90	$95,826.92
31	$506.69	$147.33	$359.35	$95,679.58
32	$506.69	$147.89	$358.80	$95,531.70
33	$506.69	$148.44	$358.24	$95,383.25
34	$506.69	$149.00	$357.69	$95,234.26
35	$506.69	$149.56	$357.13	$95,084.70
36	$506.69	$150.12	$356.57	$94,934.58
37	$506.69	$150.68	$356.00	$94,783.90
38	$506.69	$151.25	$355.44	$94,632.65
39	$506.69	$151.81	$354.87	$94,480.84
40	$506.69	$152.38	$354.30	$94,328.46
41	$506.69	$152.95	$353.73	$94,175.51
42	$506.69	$153.53	$353.16	$94,021.98
43	$506.69	$154.10	$352.58	$93,867.88
44	$506.69	$154.68	$352.00	$93,713.20
45	$506.69	$155.26	$351.42	$93,557.93
46	$506.69	$155.84	$350.84	$93,402.09
47	$506.69	$156.43	$350.26	$93,245.66
48	$506.69	$157.01	$349.67	$93,088.65
49	$506.69	$157.60	$349.08	$92,931.05
50	$506.69	$158.19	$348.49	$92,772.85
51	$506.69	$158.79	$347.90	$92,614.07
52	$506.69	$159.38	$347.30	$92,454.68
53	$506.69	$159.98	$346.71	$92,294.70
54	$506.69	$160.58	$346.11	$92,134.12
55	$506.69	$161.18	$345.50	$91,972.94
56	$506.69	$161.79	$344.90	$91,811.15
57	$506.69	$162.39	$344.29	$91,648.76
58	$506.69	$163.00	$343.68	$91,485.76
59	$506.69	$163.61	$343.07	$91,322.14
60	$506.69	$164.23	$342.46	$91,157.92
61	$506.69	$164.84	$341.84	$90,993.07
62	$506.69	$165.46	$341.22	$90,827.61
63	$506.69	$166.08	$340.60	$90,661.53
64	$506.69	$166.70	$339.98	$90,494.83
65	$506.69	$167.33	$339.36	$90,327.50
66	$506.69	$167.96	$338.73	$90,159.54
67	$506.69	$168.59	$338.10	$89,990.95
68	$506.69	$169.22	$337.47	$89,821.73
69	$506.69	$169.85	$336.83	$89,651.88
70	$506.69	$170.49	$336.19	$89,481.39
71	$506.69	$171.13	$335.56	$89,310.26
72	$506.69	$171.77	$334.91	$89,138.49
73	$506.69	$172.42	$334.27	$88,966.07
74	$506.69	$173.06	$333.62	$88,793.01
75	$506.69	$173.71	$332.97	$88,619.30
76	$506.69	$174.36	$332.32	$88,444.93
77	$506.69	$175.02	$331.67	$88,269.92
78	$506.69	$175.67	$331.01	$88,094.24
79	$506.69	$176.33	$330.35	$87,917.91
80	$506.69	$176.99	$329.69	$87,740.92
81	$506.69	$177.66	$329.03	$87,563.26
82	$506.69	$178.32	$328.36	$87,384.94
83	$506.69	$178.99	$327.69	$87,205.95
84	$506.69	$179.66	$327.02	$87,026.28
85	$506.69	$180.34	$326.35	$86,845.95
86	$506.69	$181.01	$325.67	$86,664.93
87	$506.69	$181.69	$324.99	$86,483.24
88	$506.69	$182.37	$324.31	$86,300.87
89	$506.69	$183.06	$323.63	$86,117.81
90	$506.69	$183.74	$322.94	$85,934.07
91	$506.69	$184.43	$322.25	$85,749.64
92	$506.69	$185.12	$321.56	$85,564.51
93	$506.69	$185.82	$320.87	$85,378.69
94	$506.69	$186.52	$320.17	$85,192.18
95	$506.69	$187.21	$319.47	$85,004.96
96	$506.69	$187.92	$318.77	$84,817.05
97	$506.69	$188.62	$318.06	$84,628.43
98	$506.69	$189.33	$317.36	$84,439.10
99	$506.69	$190.04	$316.65	$84,249.06
100	$506.69	$190.75	$315.93	$84,058.31
101	$506.69	$191.47	$315.22	$83,866.84
102	$506.69	$192.18	$314.50	$83,674.66
103	$506.69	$192.91	$313.78	$83,481.75
104	$506.69	$193.63	$313.06	$83,288.12
105	$506.69	$194.35	$312.33	$83,093.77
106	$506.69	$195.08	$311.60	$82,898.68
107	$506.69	$195.82	$310.87	$82,702.87
108	$506.69	$196.55	$310.14	$82,506.32
109	$506.69	$197.29	$309.40	$82,309.03
110	$506.69	$198.03	$308.66	$82,111.01
111	$506.69	$198.77	$307.92	$81,912.24
112	$506.69	$199.51	$307.17	$81,712.72
113	$506.69	$200.26	$306.42	$81,512.46
114	$506.69	$201.01	$305.67	$81,311.45
115	$506.69	$201.77	$304.92	$81,109.68
116	$506.69	$202.52	$304.16	$80,907.15
117	$506.69	$203.28	$303.40	$80,703.87
118	$506.69	$204.05	$302.64	$80,499.82
119	$506.69	$204.81	$301.87	$80,295.01
120	$506.69	$205.58	$301.11	$80,089.43
121	$506.69	$206.35	$300.34	$79,883.08
122	$506.69	$207.12	$299.56	$79,675.96
123	$506.69	$207.90	$298.78	$79,468.06
124	$506.69	$208.68	$298.01	$79,259.38
125	$506.69	$209.46	$297.22	$79,049.92
126	$506.69	$210.25	$296.44	$78,839.67
127	$506.69	$211.04	$295.65	$78,628.63
128	$506.69	$211.83	$294.86	$78,416.81
129	$506.69	$212.62	$294.06	$78,204.18
130	$506.69	$213.42	$293.27	$77,990.76
131	$506.69	$214.22	$292.47	$77,776.54
132	$506.69	$215.02	$291.66	$77,561.52
133	$506.69	$215.83	$290.86	$77,345.69
134	$506.69	$216.64	$290.05	$77,129.05
135	$506.69	$217.45	$289.23	$76,911.60
136	$506.69	$218.27	$288.42	$76,693.33
137	$506.69	$219.09	$287.60	$76,474.25
138	$506.69	$219.91	$286.78	$76,254.34
139	$506.69	$220.73	$285.95	$76,033.61
140	$506.69	$221.56	$285.13	$75,812.05
141	$506.69	$222.39	$284.30	$75,589.66
142	$506.69	$223.22	$283.46	$75,366.44
143	$506.69	$224.06	$282.62	$75,142.38
144	$506.69	$224.90	$281.78	$74,917.47
145	$506.69	$225.74	$280.94	$74,691.73
146	$506.69	$226.59	$280.09	$74,465.14
147	$506.69	$227.44	$279.24	$74,237.70
148	$506.69	$228.29	$278.39	$74,009.40
149	$506.69	$229.15	$277.54	$73,780.25
150	$506.69	$230.01	$276.68	$73,550.24
151	$506.69	$230.87	$275.81	$73,319.37
152	$506.69	$231.74	$274.95	$73,087.63
153	$506.69	$232.61	$274.08	$72,855.03
154	$506.69	$233.48	$273.21	$72,621.55
155	$506.69	$234.35	$272.33	$72,387.19
156	$506.69	$235.23	$271.45	$72,151.96
157	$506.69	$236.12	$270.57	$71,915.84
158	$506.69	$237.00	$269.68	$71,678.84
159	$506.69	$237.89	$268.80	$71,440.95
160	$506.69	$238.78	$267.90	$71,202.17
161	$506.69	$239.68	$267.01	$70,962.50
162	$506.69	$240.58	$266.11	$70,721.92
163	$506.69	$241.48	$265.21	$70,480.44
164	$506.69	$242.38	$264.30	$70,238.06
165	$506.69	$243.29	$263.39	$69,994.76
166	$506.69	$244.20	$262.48	$69,750.56
167	$506.69	$245.12	$261.56	$69,505.44
168	$506.69	$246.04	$260.65	$69,259.40
169	$506.69	$246.96	$259.72	$69,012.44
170	$506.69	$247.89	$258.80	$68,764.55
171	$506.69	$248.82	$257.87	$68,515.73
172	$506.69	$249.75	$256.93	$68,265.98
173	$506.69	$250.69	$256.00	$68,015.29
174	$506.69	$251.63	$255.06	$67,763.66
175	$506.69	$252.57	$254.11	$67,511.09
176	$506.69	$253.52	$253.17	$67,257.57
177	$506.69	$254.47	$252.22	$67,003.10
178	$506.69	$255.42	$251.26	$66,747.68
179	$506.69	$256.38	$250.30	$66,491.30
180	$506.69	$257.34	$249.34	$66,233.95
181	$506.69	$258.31	$248.38	$65,975.65
182	$506.69	$259.28	$247.41	$65,716.37
183	$506.69	$260.25	$246.44	$65,456.12
184	$506.69	$261.22	$245.46	$65,194.90
185	$506.69	$262.20	$244.48	$64,932.69
186	$506.69	$263.19	$243.50	$64,669.50
187	$506.69	$264.17	$242.51	$64,405.33
188	$506.69	$265.17	$241.52	$64,140.16
189	$506.69	$266.16	$240.53	$63,874.00
190	$506.69	$267.16	$239.53	$63,606.85
191	$506.69	$268.16	$238.53	$63,338.69
192	$506.69	$269.17	$237.52	$63,069.52
193	$506.69	$270.17	$236.51	$62,799.35
194	$506.69	$271.19	$235.50	$62,528.16
195	$506.69	$272.20	$234.48	$62,255.95
196	$506.69	$273.23	$233.46	$61,982.73
197	$506.69	$274.25	$232.44	$61,708.48
198	$506.69	$275.28	$231.41	$61,433.20
199	$506.69	$276.31	$230.37	$61,156.89
200	$506.69	$277.35	$229.34	$60,879.54
201	$506.69	$278.39	$228.30	$60,601.16
202	$506.69	$279.43	$227.25	$60,321.73
203	$506.69	$280.48	$226.21	$60,041.25
204	$506.69	$281.53	$225.15	$59,759.72
205	$506.69	$282.59	$224.10	$59,477.13
206	$506.69	$283.65	$223.04	$59,193.48
207	$506.69	$284.71	$221.98	$58,908.77
208	$506.69	$285.78	$220.91	$58,623.00
209	$506.69	$286.85	$219.84	$58,336.15
210	$506.69	$287.92	$218.76	$58,048.22
211	$506.69	$289.00	$217.68	$57,759.22
212	$506.69	$290.09	$216.60	$57,469.13
213	$506.69	$291.18	$215.51	$57,177.95
214	$506.69	$292.27	$214.42	$56,885.69
215	$506.69	$293.36	$213.32	$56,592.32
216	$506.69	$294.46	$212.22	$56,297.86
217	$506.69	$295.57	$211.12	$56,002.29
218	$506.69	$296.68	$210.01	$55,705.61
219	$506.69	$297.79	$208.90	$55,407.82
220	$506.69	$298.91	$207.78	$55,108.92
221	$506.69	$300.03	$206.66	$54,808.89
222	$506.69	$301.15	$205.53	$54,507.74
223	$506.69	$302.28	$204.40	$54,205.46
224	$506.69	$303.41	$203.27	$53,902.04
225	$506.69	$304.55	$202.13	$53,597.49
226	$506.69	$305.69	$200.99	$53,291.79
227	$506.69	$306.84	$199.84	$52,984.95
228	$506.69	$307.99	$198.69	$52,676.96
229	$506.69	$309.15	$197.54	$52,367.82
230	$506.69	$310.31	$196.38	$52,057.51
231	$506.69	$311.47	$195.22	$51,746.04
232	$506.69	$312.64	$194.05	$51,433.40
233	$506.69	$313.81	$192.88	$51,119.59
234	$506.69	$314.99	$191.70	$50,804.60
235	$506.69	$316.17	$190.52	$50,488.44
236	$506.69	$317.35	$189.33	$50,171.08
237	$506.69	$318.54	$188.14	$49,852.54
238	$506.69	$319.74	$186.95	$49,532.80
239	$506.69	$320.94	$185.75	$49,211.86
240	$506.69	$322.14	$184.54	$48,889.72
241	$506.69	$323.35	$183.34	$48,566.37
242	$506.69	$324.56	$182.12	$48,241.81
243	$506.69	$325.78	$180.91	$47,916.03
244	$506.69	$327.00	$179.69	$47,589.03
245	$506.69	$328.23	$178.46	$47,260.81
246	$506.69	$329.46	$177.23	$46,931.35
247	$506.69	$330.69	$175.99	$46,600.66
248	$506.69	$331.93	$174.75	$46,268.72
249	$506.69	$333.18	$173.51	$45,935.55
250	$506.69	$334.43	$172.26	$45,601.12
251	$506.69	$335.68	$171.00	$45,265.44
252	$506.69	$336.94	$169.75	$44,928.50
253	$506.69	$338.20	$168.48	$44,590.30
254	$506.69	$339.47	$167.21	$44,250.82
255	$506.69	$340.74	$165.94	$43,910.08
256	$506.69	$342.02	$164.66	$43,568.06
257	$506.69	$343.31	$163.38	$43,224.75
258	$506.69	$344.59	$162.09	$42,880.16
259	$506.69	$345.88	$160.80	$42,534.27
260	$506.69	$347.18	$159.50	$42,187.09
261	$506.69	$348.48	$158.20	$41,838.61
262	$506.69	$349.79	$156.89	$41,488.82
263	$506.69	$351.10	$155.58	$41,137.72
264	$506.69	$352.42	$154.27	$40,785.30
265	$506.69	$353.74	$152.94	$40,431.56
266	$506.69	$355.07	$151.62	$40,076.49
267	$506.69	$356.40	$150.29	$39,720.09
268	$506.69	$357.73	$148.95	$39,362.36
269	$506.69	$359.08	$147.61	$39,003.28
270	$506.69	$360.42	$146.26	$38,642.86
271	$506.69	$361.77	$144.91	$38,281.08
272	$506.69	$363.13	$143.55	$37,917.95
273	$506.69	$364.49	$142.19	$37,553.46
274	$506.69	$365.86	$140.83	$37,187.60
275	$506.69	$367.23	$139.45	$36,820.37
276	$506.69	$368.61	$138.08	$36,451.76
277	$506.69	$369.99	$136.69	$36,081.77
278	$506.69	$371.38	$135.31	$35,710.39
279	$506.69	$372.77	$133.91	$35,337.62
280	$506.69	$374.17	$132.52	$34,963.45
281	$506.69	$375.57	$131.11	$34,587.87
282	$506.69	$376.98	$129.70	$34,210.89
283	$506.69	$378.39	$128.29	$33,832.50
284	$506.69	$379.81	$126.87	$33,452.69
285	$506.69	$381.24	$125.45	$33,071.45
286	$506.69	$382.67	$124.02	$32,688.78
287	$506.69	$384.10	$122.58	$32,304.68
288	$506.69	$385.54	$121.14	$31,919.14
289	$506.69	$386.99	$119.70	$31,532.15
290	$506.69	$388.44	$118.25	$31,143.71
291	$506.69	$389.90	$116.79	$30,753.81
292	$506.69	$391.36	$115.33	$30,362.45
293	$506.69	$392.83	$113.86	$29,969.63
294	$506.69	$394.30	$112.39	$29,575.33
295	$506.69	$395.78	$110.91	$29,179.55
296	$506.69	$397.26	$109.42	$28,782.29
297	$506.69	$398.75	$107.93	$28,383.54
298	$506.69	$400.25	$106.44	$27,983.29
299	$506.69	$401.75	$104.94	$27,581.54
300	$506.69	$403.25	$103.43	$27,178.29
301	$506.69	$404.77	$101.92	$26,773.52
302	$506.69	$406.28	$100.40	$26,367.23
303	$506.69	$407.81	$98.88	$25,959.43
304	$506.69	$409.34	$97.35	$25,550.09
305	$506.69	$410.87	$95.81	$25,139.22
306	$506.69	$412.41	$94.27	$24,726.80
307	$506.69	$413.96	$92.73	$24,312.84
308	$506.69	$415.51	$91.17	$23,897.33
309	$506.69	$417.07	$89.61	$23,480.26
310	$506.69	$418.63	$88.05	$23,061.63
311	$506.69	$420.20	$86.48	$22,641.42
312	$506.69	$421.78	$84.91	$22,219.64
313	$506.69	$423.36	$83.32	$21,796.28
314	$506.69	$424.95	$81.74	$21,371.33
315	$506.69	$426.54	$80.14	$20,944.79
316	$506.69	$428.14	$78.54	$20,516.65
317	$506.69	$429.75	$76.94	$20,086.90
318	$506.69	$431.36	$75.33	$19,655.54
319	$506.69	$432.98	$73.71	$19,222.56
320	$506.69	$434.60	$72.08	$18,787.96
321	$506.69	$436.23	$70.45	$18,351.73
322	$506.69	$437.87	$68.82	$17,913.86
323	$506.69	$439.51	$67.18	$17,474.36
324	$506.69	$441.16	$65.53	$17,033.20
325	$506.69	$442.81	$63.87	$16,590.39
326	$506.69	$444.47	$62.21	$16,145.92
327	$506.69	$446.14	$60.55	$15,699.78
328	$506.69	$447.81	$58.87	$15,251.97
329	$506.69	$449.49	$57.19	$14,802.48
330	$506.69	$451.18	$55.51	$14,351.30
331	$506.69	$452.87	$53.82	$13,898.43
332	$506.69	$454.57	$52.12	$13,443.87
333	$506.69	$456.27	$50.41	$12,987.60
334	$506.69	$457.98	$48.70	$12,529.62
335	$506.69	$459.70	$46.99	$12,069.92
336	$506.69	$461.42	$45.26	$11,608.49
337	$506.69	$463.15	$43.53	$11,145.34
338	$506.69	$464.89	$41.80	$10,680.45
339	$506.69	$466.63	$40.05	$10,213.82
340	$506.69	$468.38	$38.30	$9,745.43
341	$506.69	$470.14	$36.55	$9,275.29
342	$506.69	$471.90	$34.78	$8,803.39
343	$506.69	$473.67	$33.01	$8,329.72
344	$506.69	$475.45	$31.24	$7,854.27
345	$506.69	$477.23	$29.45	$7,377.04
346	$506.69	$479.02	$27.66	$6,898.01
347	$506.69	$480.82	$25.87	$6,417.20
348	$506.69	$482.62	$24.06	$5,934.58
349	$506.69	$484.43	$22.25	$5,450.15
350	$506.69	$486.25	$20.44	$4,963.90
351	$506.69	$488.07	$18.61	$4,475.83
352	$506.69	$489.90	$16.78	$3,985.93
353	$506.69	$491.74	$14.95	$3,494.19
354	$506.69	$493.58	$13.10	$3,000.61
355	$506.69	$495.43	$11.25	$2,505.17
356	$506.69	$497.29	$9.39	$2,007.88
357	$506.69	$499.16	$7.53	$1,508.73
358	$506.69	$501.03	$5.66	$1,007.70
359	$506.69	$502.91	$3.78	$504.79
360	$506.69	$504.79	$1.89	$0.00

Fixed payment
Combined principal and interest stay nearly level each month. Start here when planning a similar payment amount month to month.
Equal principal
Repay the same principal amount each month. The first payment is higher, then payments fall as the balance decreases.
Interest only
Pay interest monthly and the full principal at maturity. Check the final payment, which includes that principal.

A worked example

Borrowing ₩100 million at 4.5% for 30 years

Fixed payment · monthly506,685KRW

Total interest: about KRW 82,406,712

Equal principal · first month652,778KRW

Total interest: KRW 67,687,500

Start with: KRW 100,000,000 · 4.5% yearly · 360 months · fixed payment
Check the result: About ₩506,685/month · total interest about ₩82,406,712

On the same terms, equal principal starts at about ₩652,778 with ₩67,687,500 total interest. Interest only is ₩375,000/month with a ₩100,375,000 final payment.

Questions that come up

What changes between repayment methods?

Fixed payment keeps principal plus interest nearly level. Equal principal pays the same principal each month, so payments decline. Interest-only repays the full principal in the final month.

Does selecting another currency convert my amount?

No. The selected currency labels the amount you enter and the results; no exchange rate is applied.

Loan Interest Calculator

Fixed payment

Equal principal

Interest only

Borrowing ₩100 million at 4.5% for 30 years

Questions that come up

Tools that work well together