Loan Calculator
Estimate fixed monthly principal and interest payments and total borrowing cost.
Money & Planning · FREE TO USE
Compound Interest Calculator
Explore growth with monthly contributions and a clearly defined compounding schedule.
02EXAMPLE RESULT
Projected balance
47,526.55
currency units
Total contributed34,000currency units
Interest earned13,526.55currency units
Saving period120months
Results update as you type. Calculate adds a snapshot to your history.
How this calculation works
Uses the entered nominal annual rate divided by 12 and monthly compounding. Contributions are equal and nonnegative. The model assumes a constant rate, with no fees, taxes, inflation, or market volatility; it illustrates a scenario rather than predicting a return.
FV = P(1 + r)^n + C × [(1 + r)^n − 1] ÷ r. Start-of-month contributions multiply the contribution term by (1 + r).
Your calculation, step by step
- Compound at 0.4166666667% per month for 120 months.
- Add 200 at the end of each month.
- Separate your contributions from the interest generated by this scenario.
A worked example
2,000 growing at 5% nominal annual interest, compounded monthly for 2 years with no additions, becomes about 2,209.88.