Compound interest calculator

Enter a starting amount, a monthly deposit, an annual rate and a number of years to see how interest earns interest over time.

Final balance$95,770
Total deposited
$53,000
Interest earned
$42,770
Total depositedInterest earned

Yearly schedule

YearTotal depositedInterest earnedBalance
1$7,400$312$7,712
2$9,800$762$10,562
3$12,200$1,358$13,558
4$14,600$2,107$16,707
5$17,000$3,018$20,018
6$19,400$4,098$23,498
7$21,800$5,356$27,156
8$24,200$6,801$31,001
9$26,600$8,443$35,043
10$29,000$10,292$39,292
11$31,400$12,358$43,758
12$33,800$14,652$48,452
13$36,200$17,187$53,387
14$38,600$19,974$58,574
15$41,000$23,026$64,026
16$43,400$26,358$69,758
17$45,800$29,982$75,782
18$48,200$33,915$82,115
19$50,600$38,172$88,772
20$53,000$42,770$95,770

Estimates for information only. They are not financial advice.

How it works

  • Interest is added at the compounding frequency you choose.
  • Monthly deposits are added at the end of each month.
  • The result is a projection, not a promise: real returns vary.

Frequently asked questions

What is compound interest?

Compound interest is interest calculated on your initial amount and on the interest already earned. The longer you leave the money, the faster it grows.

Does the compounding frequency matter?

It matters a little. More frequent compounding gives a slightly higher result, but the rate and the number of years have a much bigger effect.