Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. Compound interest is interest that's calculated on ...

Brian Beers is a digital editor, writer, Emmy-nominated producer, and content expert with 15+ years of experience writing about corporate finance & accounting, fundamental analysis, and investing.

Even small amounts of money, when saved regularly, can grow into a large sum—thanks to compound interest. With time, discipline, and smart choices, your savings start earning their own returns. This ...

Compound interest is the interest earned on money that has already earned interest. Compound interest helps your money grow faster, with no additional investment on your part. Many or all of the ...

See how your savings and investment account balances can grow with the magic of compound interest. Many, or all, of the products featured on this page are from our advertising partners who compensate ...

When it comes to calculating interest, there are two basic choices -- simple and compound. Simple interest simply means a set percentage of the principal every year, and is rarely used in practice. On ...