Online Financial & Investment Calculators
Compound Interest Calculator
The Power of Compound Interest
Albert Einstein reportedly called compound interest the ‘eighth wonder of the world.’ When you invest in the S&P 500 (average ~10% annual return), your returns generate their own returns. $500/month invested for 30 years at 10% grows to over $1,000,000 — but you only deposited $180,000. The remaining $820,000+ came from compounding.
How to Maximize Compound Growth
Use tax-advantaged accounts: max out your 401(k) (especially employer match — it’s free money), Roth IRA ($7,000/year), and HSA. Invest in low-cost index funds and reinvest all dividends. The earlier you start, the more powerful compounding becomes.

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Quality auditing, accounting, payroll, and tax services from Corson, Peterson & Hamann S.C. in Sheboygan, Wisconsin.
