Future Value Calculator
Estimate future value using a starting balance, monthly contributions, and an annual return rate. Includes a yearly breakdown table.
Future Value Calculator tool
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.
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
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.