For maximum accuracy—particularly for continuous compounding interest ... the math lines up fairly closely with the actual compound interest formula. Once you go outside that range, the ...

The simple interest formula isn't as complicated as the compound formula below. A savings account is an account that earns interest with a financial institution. Let's say you invested $10,000 in ...

Compound interest is interest calculated on both the initial principal and all of the previously accumulated interest. d3sign / Getty Images The formula for calculating simple interest is ...