# Future Value Calculator

> Future value calculator: project savings growth from deposits, interest rate and compounding frequency over any time span. Editable rates, free, no signup.

- **Canonical URL:** https://boringtoolskit.com/future-value-calculator/
- **Category:** Finance & Investing
- **Evidence level:** authored-methodology
- **Reviewed:** August 2026
- **Last verified:** 2026-10-12
- **Privacy:** Inputs and results stay in this browser unless the page clearly labels an external request.

## How it works

FV = principal x (1 + r/12)^(12n) + monthly x (((1 + r/12)^(12n) - 1) / (r/12)) for end-of-month contributions.

## Worked example

$10,000 principal at 6%, compounded monthly for 10 years, grows to about $18,193.97; add $300 monthly contributions ($36,000 over the decade) on top of that base.

## Assumptions

- Rate and contributions remain constant.
- Taxes, fees, and market volatility are excluded.
- This is a hypothetical projection, not an investment forecast.

## Common questions

### What is a future value calculator and how does it work?

A future value calculator estimates how much your current investment will be worth over time based on compound interest. You simply enter your initial amount, contribution frequency, interest rate, and time period to get an instant projection.

### Do I need to create an account or sign up to use this future value calculator?

No, this is a completely no-signup tool. It runs entirely in your browser, so your data is never stored on a server or shared with anyone.

### How accurate are the results from this future value calculator?

The results are mathematically accurate based on the inputs you provide, assuming a constant interest rate. However, it does not account for taxes, inflation, or fluctuating market returns, so it is best used for general planning rather than exact financial predictions.

## Related tools

- /retirement-planning-calculator/
- /savings-goal-calculator/
- /cagr-calculator/

## Sources

- [Compound interest calculator](https://www.investor.gov/financial-tools-calculators/calculators/compound-interest-calculator)
- [Saving and investing roadmap](https://www.sec.gov/investor/pubs/sec-guide-to-savings-and-investing.pdf)

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*Local planning estimate. Verify current terms, rates, and policies before acting.*