How to enter it
Set the starting amount, monthly contribution, annual rate, and years. Then choose daily compounding in the compounding menu.
dailyRate = annualRate / 365balance = balance x (1 + dailyRate) ^ days + depositDaily deposits estimate
Daily compound interest calculator with contributions
Use this page when the account compounds daily and you also plan to add money every month. The main calculator can model that setup with a growth curve and a contribution breakdown.
Worked example
A $5,000 starting balance, $250 monthly deposit, 7% annual return, and 20-year timeline can grow much more from consistent deposits than from the first balance alone.
The contribution chart on the main calculator separates total deposits from estimated growth, which makes the tradeoff easier to see.
What matters most
Daily compounding is only one lever.
For most long-term savings plans, the biggest drivers are time, deposit size, and the assumed annual rate. Compounding frequency usually matters less than people expect.