Compound Interest Calculator
Project how your savings grow with compound interest and optional monthly contributions. Results update instantly.
Frequently asked questions
What is compound interest?
Compound interest is interest earned on both your original principal and the interest already accumulated. Over long periods it produces exponential growth.
How often should interest compound?
More frequent compounding (e.g. daily vs annually) yields slightly more. Most savings accounts compound monthly or daily.
Does this include taxes or fees?
No. The result is a gross projection before taxes, inflation, and account fees. Treat it as an estimate, not financial advice.