Compound Interest Calculator

Small differences in savings or CD rates may seem trivial. But, earning more in your savings and CD accounts can lead to much larger account balances balances over time when you examine the difference in compound interest over time. Use our calculator on the right below to see how much larger your accounts can be by moving to higher earning savings and CD rates.

Use or Change these Amounts And Rates

The Results

Savings Boost of
$3,868 over 10 years
Cash Savings $20,000
Average Interest Earned $141

 
Best Interest Earned $4,009

 

 

See comparison detail table

This analysis is for demonstrative purposes only and may change should certain assumptions prove incorrect. Savings rates may change and CD rates may not be renewable for the length of the term of the analysis. The difference between the bank rate entered and the average rate may not remain constant throughout the term.

Comparison Detail Table Close X

Scenario 1

Rate:
0.10%
Annual
Interest
Annual Interest
(After Tax)
1 20,000 20 14
2 20,020 20 14
3 20,040 20 14
4 20,060 20 14
5 20,080 20 14
6 20,100 20 14
7 20,120 20 14
8 20,140 20 14
9 20,161 20 14
10 20,181 20 14
TOTAL: $201 $141

Scenario 2

Rate:
2.55%
Annual
Interest
Annual Interest
(After Tax)
1 20,000 510 357
2 20,510 523 366
3 21,033 536 375
4 21,569 550 385
5 22,119 564 395
6 22,683 578 405
7 23,262 593 415
8 23,855 608 426
9 24,463 624 437
10 25,087 640 448
TOTAL: $5,727 $4,009

Take Action

The accounts below offer some of the best rates in the country can be opened online, and are available nationally. As the calculator shows, changing accounts to earn a higher interest rate can really add up over time.