Educational · illustrative

Portfolio Growth Explorer

See how contributions and an assumed return compound over time. Your inputs—not a forecast.

20 years

Illustrative constant return — markets vary.

Bands use mid ±2 percentage points for a simple sensitivity view.

Ending balance (mid)

—

Illustrative. Your assumptions. Not advice. — not a prediction.

Illustrative. Your assumptions. Not advice.

Email this result

Optional: send yourself a calm copy via the HFG newsletter list. No free PDF magnet. Requires consent below.

How to read this

The ending balance compounds monthly at your assumed annual return, with contributions added each month. High and low bands simply shift that return assumption—they are not forecasts of any market or security.

Past or assumed returns are not guarantees. This is educational math, not personalized investment advice.

Assumptions & method
  • Monthly compounding: balance grows by (annual return ÷ 12), then the monthly contribution is added.
  • Return is constant and user-supplied — no inflation, taxes, or fees modeled.
  • High / low bands = mid return ± 2 percentage points (illustrative sensitivity only).

Keep going calmly

Drop this month’s number into the Monthly Money Planner — or get the Friday note. Soft optional steps only.

Monthly Money Planner — $9 Get the Friday note