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- Compound Interest Calculator

**Compound Interest is calculated on the initial payment and also on the interest of previous periods.**

**Example:** Suppose you give \$100 to a bank which pays you 10%
compound interest at the end of every year. After one year you will have \$100 + 10% = \$110, and
after two years you will have \$110 + 10% = \$121.

Click here to view some problem which can be solved by using this calculator.

This is a list of the example problems which can be solved by using this calculator.

**Example 1:** What will a deposit of **\$4,500** at **7%** compounded **yearly** interest be worth
if left in the bank for **9 years**?

Set up the form | View the solution |

**Example 2:** What will a deposit of **$3,500** at **10%** compounded **monthly** be worth if left in
the bank for **8 years?**

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**Example 3:** How much money would you need to deposit today at **8%** annual interest compounded **monthly**
to have **\$1200** in the account after **12 years**?

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**Example 4:** Find the present value of **\$1,000** to be received at the end of **2** years at a **12%** nominal annual
interest rate compounded **quarterly**.

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**Example 5:** What annual interest rate is implied if you lend someone **$1,700** and are repaid **$1,910** in
**two** years?

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**Example 6:** Suppose that a savings account is compounded **monthly** with a principal
of **\$1350**. After **8 months**, the amount increased to **\$1424**.
What was the per annum interest rate?

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**Example 7:** How long does it take for **\$4,300** to grow into **\$2,720** at **9%**
compounded **quarterly?**

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