Entering an APY? Choose Annually, since APY already includes compounding.

Contribution timing & yearly increase
Contributions are made at the

Deposits at the start of each period earn one extra period of interest.

For example, 3% if you plan to raise your savings along with your pay.

Future value

$47,526.55

After 10 years at 5% compounded monthly, adding $200 a month

Initial investment: 21.0%Total contributions: 50.5%Total interest: 28.5%$47,527future value
Initial investment
$10,000.00
Total contributions
$24,000.00
Total interest
$13,526.55
Future value
$47,526.55

Total deposited

$34,000

Effective annual yield (APY)

5.116%

Time to double (lump sum)

13.9 years

Interest makes up 28.5% of your final balance: compounding turns $34,000 of deposits into $47,527.

Balance growth by year

$0$13K$25K$38K$50KStartYr 2Yr 4Yr 6Yr 8Yr 10
  • Initial investment
  • Contributions
  • Interest

Year-by-year growth

Starting balance: $10,000 (not counted as a contribution)
YearContributionsInterestEnding balance
1$2,400$567$12,967
2$2,400$719$16,087
3$2,400$879$19,365
4$2,400$1,047$22,812
5$2,400$1,223$26,435
6$2,400$1,408$30,243
7$2,400$1,603$34,246
8$2,400$1,808$38,454
9$2,400$2,023$42,877
10$2,400$2,249$47,527

Compound Interest Calculator by SureCalcs