Savings Calculator: See How Fast Your Money Can Grow
Enter your starting balance, monthly contribution, and interest rate below, and I’ll show you exactly where you’ll land.
Even a 1% difference in APY can add up to thousands over the life of your savings. See the high-yield accounts I use to make sure your rate is working as hard as you are.
How this calculator works
Assumptions
- Interest compounds monthly at your APY divided by 12.
- Your monthly contribution is added at the end of each month.
- The rate stays the same for the whole time horizon.
- No taxes, fees, or withdrawals.
What your result means
The ending balance is what your account could reach if every assumption holds. The chart splits it into money you put in and growth from interest, so you can see how much of the result is your own contributions.
Limitations
Savings account rates are variable and often change. Interest is usually taxable, and the real buying power of your balance is reduced by inflation, which this tool does not adjust for.
Results are estimates for education, not personalized financial advice. For decisions about your own situation, consider talking with a qualified financial professional.
Example
Start with $1,000, add $200 a month, and earn 4.00% APY for 10 years. You would contribute $25,000 in total and end with about $30,941, so roughly $5,941 would come from interest.
This calculator is an educational estimate, not financial advice. It assumes monthly compounding (APY ÷ 12) with contributions made at the end of each month, and it doesn’t account for taxes, fees, or rate changes. Your actual results will depend on your bank and account terms.