Daily Compound Interest Calculator

The difference between daily and monthly compounding is relatively small but adds up over time. At 5% on $5,000 over 5 years, daily compounding earns roughly $10-20 more than monthly compounding. The gap widens with higher principal amounts and longer time horizons, making daily compounding most beneficial for large, long-term deposits.

High-yield savings accounts, money market accounts, and many certificates of deposit (CDs) commonly offer daily compounding. Online banks are especially likely to offer daily compounding as a competitive advantage. Always check the account terms to confirm the compounding frequency before opening an account.

While continuous compounding is theoretically the highest frequency, daily compounding is the most common maximum offered by financial institutions. The difference between daily and continuous compounding is negligible for practical purposes. For a 5% rate, the effective annual rate with daily compounding is 5.1267% versus 5.1271% with continuous compounding.