Our mission
Compound Interest Easy exists to make compound-interest math simple, visual, and accessible. Everything here is built for education and clarity-no products, no sales pitches-just tools and explanations to help you understand how compounding works.
Who this calculator is for
- New savers: get a feel for how small deposits add up.
- Long-term investors: explore how time and rate assumptions change outcomes.
- Students: learn the basics of interest, frequency, and growth.
- Planners and comparison shoppers: test scenarios before speaking with a professional.
What this site does (and does NOT do)
- Shows projections based on the numbers you enter.
- Does not predict markets or guarantee outcomes.
- Is not personalized financial, legal, or tax advice.
How to use the site effectively
- Try multiple scenarios: vary principal, contributions, and years.
- Test different interest rates and compounding frequencies.
- Toggle inflation and tax settings to see real and after-tax views.
- Use the supporting content-How it works, Learn, and FAQ-to understand the concepts.
Contact / feedback
We welcome feedback to keep the calculator accurate and easy to use. Reach out via our contact form or a generic feedback email; we do not collect personal financial details.