Daily Interest Calculator
Project your investment returns over time or work backwards to find the upfront principal needed to reach your target income. Supports simple flat rates, monthly and daily compounding, and calendar month breakdowns.
Enter your starting principal, interest rate, and compounding choice to calculate earnings across years, months, weeks, and days.
* Most UK and high-yield savings accounts pay interest monthly. If interest stays in the account, choose Monthly Compounding.
* Set to 1 for annual breakdown or more years to project total compounding balance growth.
Calculation Breakdown
Please enter a principal amount and interest rate above.