Future Value Calculator
Estimate future value using a starting balance, monthly contributions, and an annual return rate. Includes a yearly breakdown table.
Enter 0 to estimate growth from the starting amount only.
Prevents huge simulations/tables. Typical use is 1–50 years.
| Year | End Balance | Total Contributions | Estimated Growth |
|---|
Informational only. Assumes constant rate and monthly compounding; real returns vary.
How it works
This calculator models a simple monthly compounding process. Each month the current balance grows by (annualRate ÷ 12), then your monthly contribution (if any) is added. Over many months, compounding can significantly increase the ending balance compared to simple interest.
The “Estimated Growth” shown here is ending balance − (starting amount + total contributions). It’s a useful way to see how much of the result comes from market growth versus deposits.
If you need a tool that focuses on “interest only” behavior, use a compound interest calculator. If you need to discount future cash flows back to today, use net present value (NPV).
Examples
- $10,000 + $200/mo at 6% for 10 years → future value estimate
- $10,000 + $0/mo at 6% for 10 years → growth-only scenario
- Try a shorter horizon (e.g., 3 years) to see the impact of time on compounding
When to use this tool
This tool is designed for quick, practical tasks such as everyday calculations, data formatting, or simple conversions. It is best used when you need fast results without installing software or using complex tools.
When to use
- Quick checks or one-time calculations
- Validating or converting data before using it elsewhere
- Simple tasks that do not require advanced software
When not to use
- Critical financial, legal, or medical decisions
- Large-scale or automated processing
- Situations requiring guaranteed precision beyond basic validation
Always review results before using them in important contexts.
About this tool
This tool helps you perform quick utility operations directly in your browser. It runs entirely in your browser without sending data to a server.
You can use this tool when handling simple tasks without installing additional software. The results should be interpreted as a processed output based on your input data.
FAQ
- What is future value (FV)?
Future value is the projected value of a starting amount after a period of time, given a growth rate and optional ongoing contributions.
- Does this compound monthly?
Yes. This tool uses monthly compounding for simplicity: monthlyRate = annualRate ÷ 12, repeated for months = years × 12.
- Are returns guaranteed?
No. This is a projection. Real investment returns can vary and may be negative in some periods.
- Does this include taxes, inflation, or fees?
No. This tool estimates gross growth only. Taxes, fees, and inflation can reduce real-world results.
- How are contributions handled?
Monthly contributions are added at the end of each month in this model. Different timing (beginning-of-month) can slightly change results.