Investment Growth Forecast Calculator

Project your Roth IRA, 401(k), HSA, taxable brokerage, and emergency fund over time. This is designed for long-term planning, milestone tracking, and “where will I be by age X?” questions.

Inputs

Profile

Current age

Project to age

Starting year

Inflation rate

Used for inflation-adjusted dollars.

Current balances

Roth IRA

401(k)

HSA

Taxable brokerage

Emergency fund / cash

Cash return

Annual contributions

Roth IRA

401(k) employee

Example: 11% of $90,100.

401(k) employer match

Example: 50% up to 4%.

HSA

Taxable brokerage

Cash contribution

Assumptions

Investment return

Nominal annual return.

Contribution increase

Annual increase to contributions.

Contribution timing

Display dollars

This is a planning model, not a tax or investment recommendation. It ignores future contribution limits, market volatility, withdrawals, taxes on taxable sales, and changes to employer benefits.

Current assets

Projected final assets

Total contributions

Projected growth

$250k

—

$500k

—

$1 million

—

$2 million

—

Enter assumptions and calculate.

Total Assets Over Time

Account Breakdown

Year-by-Year Projection

Year	Age	Roth IRA	401(k)	HSA	Taxable	Cash	Total	Annual Contrib.	Cumulative Contrib.