About the Savings Calculator
How much will your savings grow? Starting balance plus monthly deposits at a savings interest rate over time.
Also known as: savings growth, savings account calculator, how much will i save.
How to use this calculator
- Enter starting balance, monthly deposit, interest rate (apy), years.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
FV = P(1 + r)ⁿ + PMT·((1 + r)ⁿ − 1)/r (monthly periods)
- P
- = initial amount
- PMT
- = monthly contribution
- r
- = monthly rate
- n
- = months
Worked example
Using the values pre-filled in the calculator above:
- Starting balance = 5,000
- Monthly deposit = 300
- Interest rate (APY) = 4.5 %
- Years = 5
the calculator returns:
- Future value: 26,402.64
- Total contributed: 23,000
- Total growth / interest: 3,402.64
- Growth as % of contributions: 14.79%