Math Calculators, Lessons and Formulas

It is time to solve your math problem

mathportal.org

# Compound interest calculator

Compound interest is calculated on both the initial payment and the interest earned in previous periods.

Compound Interest Calculator
Find the amount of money you receive after investing time.
show help ↓↓ examples ↓↓
Hide steps
Compound Interest Calculator
Here you can select a value you want to find.
show help ↓↓ examples ↓↓
Hide steps
working...
Examples:
example 1:ex 1:
What is the value of a $4500 deposit at 7% compounded annual interest if it is held in a bank for 9 years? example 2:ex 2: What will a$3500 deposit at 10% compounded monthly be worth after 8 years in the bank?
example 3:ex 3:
How much money would you need to put today at 8% annual compounded monthly interest to have $1200 in the account after 12 years? example 4:ex 4: Determine the present value of$1000 at a 12% annual interest rate compounded quarterly at the end of two years.
example 5:ex 5:
What is the estimated yearly interest rate if you give someone $1700 and get repaid$1910 in two years?
example 6:ex 6:
Assume that a savings account with a principal of $1350 is compounded monthly. After 8 months, the total had risen to$1424. What was the interest rate per year?
example 7:ex 7:
How long does it take $4300 to grow to$6720 when compounded quarterly at 9%?
Search our database of more than 200 calculators