Free financial calculator

Mortgage Amortization Calculator

Use this free mortgage amortization calculator to calculate principal and interest over the life of a mortgage. Choose a currency label that matches your situation and enter your own rates and amounts. QuickToolCenter does not supply live lender rates, investment returns or tax assumptions for this calculator.

Amount financed$320,000.00
Scheduled monthly payment$1,918.56
Estimated payoff time30 years
Estimated total interest$370,682.20
YearPrincipalInterestBalance
1$3,929.64$19,093.10$316,070.36
2$4,172.01$18,850.73$311,898.35
3$4,429.33$18,593.41$307,469.02
4$4,702.52$18,320.22$302,766.50
5$4,992.56$18,030.18$297,773.94
6$5,300.49$17,722.25$292,473.45
7$5,627.41$17,395.33$286,846.03
8$5,974.50$17,048.24$280,871.53
9$6,343.00$16,679.74$274,528.54
10$6,734.22$16,288.52$267,794.32
11$7,149.57$15,873.17$260,644.75
12$7,590.54$15,432.20$253,054.21
13$8,058.71$14,964.03$244,995.50
14$8,555.75$14,466.99$236,439.75
15$9,083.45$13,939.29$227,356.30
16$9,643.70$13,379.04$217,712.60
17$10,238.50$12,784.24$207,474.10
18$10,869.99$12,152.75$196,604.12
19$11,540.43$11,482.31$185,063.69
20$12,252.21$10,770.53$172,811.48
21$13,007.90$10,014.84$159,803.57
22$13,810.20$9,212.54$145,993.37
23$14,661.99$8,360.75$131,331.38
24$15,566.30$7,456.44$115,765.08
25$16,526.40$6,496.34$99,238.68
26$17,545.71$5,477.03$81,692.97
27$18,627.89$4,394.85$63,065.07
28$19,776.82$3,245.92$43,288.25
29$20,996.61$2,026.13$22,291.64
30$22,291.64$731.10$0.00

Educational estimate only. This calculator is not financial, investment, tax, credit or lending advice. Actual rates, fees, rules and institution calculations can differ.

How to use the Mortgage Amortization Calculator

  1. Choose the currency used for your values.
  2. Enter the balance, rate, payment, contribution or term requested by the calculator.
  3. Review the payment, interest, growth or payoff results and compare different assumptions.
  4. Use the estimate for planning and verify important financial decisions against actual lender, institution or professional information.

Examples

Formula

Each payment first covers periodic interest, with the remaining amount reducing principal.

Example

Compare how much principal remains after 1, 5, 10 or more years of scheduled payments.

Frequently asked questions

Is this mortgage amortization calculator free?

Yes. It is free to use and does not require an account or paid API.

Can I use a currency other than US dollars?

Yes. Financial formulas generally work independently of currency. Select the currency label that matches your values. The calculator does not perform live currency conversion.

Does the calculator use current bank or investment rates?

No. Enter the actual rate or assumption you want to test. This avoids presenting outdated market rates as current.

Is this financial advice?

No. Results are educational planning estimates and are not financial, investment, tax, credit or lending advice.

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