Is the investment calculator free to use?

Yes. It’s free and runs in your browser - no signup required.

Is the projected return guaranteed?

No. The return is an assumption for planning. Real investments can go up or down and may not match the projected rate.

Does the calculator include fees and taxes?

No. Fees, taxes, and contributions limits vary by account type and location. Treat results as a rough projection.

Does the tool store my numbers?

No. Calculations run in your browser and aren’t stored on our servers.

Should I use this for retirement planning?

Use this for simple compound-growth scenarios. For inflation-adjusted retirement income needs, use the retirement calculator.

Investment Calculator

Calculate compound interest and investment growth over time

Privacy-First • No Data Collection

Investment Calculator

Calculate investment growth with compound interest. Plan for retirement, analyze returns, and determine how much you need to save to reach your financial goals.

Calculation Type

Choose what you want to calculate

Investment Parameters

Enter your investment details to calculate growth

Initial Investment ($)

Monthly Contribution ($)

Expected Annual Return (%) *

Time Horizon (years) *

Compounding Frequency

Inflation Rate (%) - Optional

Investment Tips & Strategies

Key principles for successful investing

Start Early

Time is your greatest asset - compound interest works best over long periods

Dollar-Cost Averaging

Regular contributions help reduce the impact of market volatility

Diversification

Spread risk across different asset classes and sectors

Stay Consistent

Regular contributions, even small ones, add up significantly over time