Tools & Calculators
Compound Interest Calculator (Investor.gov)
A free, official calculator from the U.S. SEC that shows how investments can grow over time through compounding.
Pricing: Free
Pros
- Free and unbiased
- Simple to use
- Illustrates compounding clearly
Cons
- Basic feature set
- Does not model taxes
Educational notes
A great hands-on way to see the ideas in our compound interest article come to life.