💰 Savings Result
$20,000 deposit + at 4% for 10 years grows to $29,817
At 4% compound interest over 10 years, $20,000 deposit + at 4% for 10 years becomes $29,817. You contribute $20,000 and earn $9,817 in interest — a 49% return.
▶ Open full savings calculatorFinal balance
$29,817
After 10 years
Interest earned
$9,817
49% return
Total deposited
$20,000
Your contributions
Why $9,817 in free interest
At 4%, money doubles every approximately 18.0 years. In the first year you earn $815 in interest. By year 10, you earn $1,167 — far more, because you're earning interest on all accumulated gains.
To compare this with an investment portfolio, use the compound interest calculator. To understand how inflation erodes purchasing power of these savings over time, see the inflation calculator.