Savings with Contributions
Savings with Contributions
Model monthly saving at a constant nominal interest rate.
How it works
Model monthly saving at a constant nominal interest rate.
Using this calculator
Enter starting balance, end-of-month contribution, annual nominal rate (%), months. P(1+r)^n + deposit × ((1+r)^n−1)/r.
What to keep in mind
An arithmetic scenario using your own inputs. Use one currency throughout. No live rates, fees, legal tax rules or personal financial advice are included.
Frequently asked questions
Are my entries saved?
No. Calculator inputs remain in the current page and are cleared when you reload or leave. The tools do not upload your entries.
Why are results rounded?
The display is rounded for readability. Calculations use unrounded intermediate values. An estimate should not be interpreted as an exact measurement.