Daily Compound Interest Calculator
Find what a balance grows to with interest compounded every day, from a daily or annual rate.
Change the values and press Calculate to work out your own figures.
Enter the balance, the rate and the days.
Show the working
- balance = principal × (1 + daily rate)^days
How to use it
Enter the balance, the rate and the days.
Enter amounts without commas or with them; rates are percentages (5 for 5%). Negative amounts are allowed where a sign means money paid out.
Key facts
balance = principal × (1 + daily rate)^days; daily rate = annual rate ÷ 365
Questions
How much is $1,000 at 0.03% a day after 200 days?
$1,061.83.
Formulas
balance = principal × (1 + daily rate)^days; daily rate = annual rate ÷ 365
Sources
Limitations
- Results are estimates for planning, not offers or financial advice; lenders and banks may round, count days or time payments differently.
- Rates are nominal annual rates compounded as you choose; payments at a different frequency use the equivalent periodic rate.