Free online tool
Compound Interest Calculator with Monthly Contributions
Model how money can grow when a starting balance is combined with recurring monthly deposits, a return rate and a time horizon.
What this tool does
Texteme’s compound interest calculator with monthly contributions is built for clear scenario planning. It separates starting balance, recurring deposits, total money added and estimated interest so you can understand what drives the final amount.
The page does not pull market rates or recommend financial products. You enter the rate you want to test, choose the period and compare educational scenarios in a clean browser-based calculator.
How to use it
- Enter the starting amount and the monthly contribution.
- Choose the rate period, the return rate and the term.
- Calculate the estimated final balance, total deposits and interest.
Common uses
- plan recurring monthly deposits
- compare investment horizons
- separate contributed money from interest
- study scenarios before building a spreadsheet
Note about financial simulations
The result is a mathematical estimate. Real returns can change because of fees, taxes, inflation, timing, product rules, risk and liquidity.