Portfolio Growth Calculator

How to use this calculator

• Enter your starting portfolio and monthly contribution.
• Add expected annual return, investment years, inflation, and contribution growth.
• Use the inflation-adjusted value to estimate future purchasing power.

What the result means

Portfolio Growth Calculator turns basic personal finance inputs into practical numbers you can use for planning. Focus on the direction and sensitivity of the result rather than treating it as a guaranteed outcome.

For better decisions, test several scenarios: conservative, expected, and aggressive. Small changes in savings rate, fees, tax rate, or debt burden can create large differences over time.

FAQ

Why include inflation?

Inflation adjustment shows the future value in today’s purchasing-power terms.

Does it include contribution increases?

Yes. Monthly contributions can rise each year using the contribution growth rate.

Is the result guaranteed?

No. It is a planning estimate based on constant return assumptions.