Real engine · fictional profile · zero setup
Try a real runway.Nothing to connect.
Meet Alex, a fictional planner in Illinois. Move one monthly spending input and RunwayFI recomputes the plan with the same tax, FIRE, and projection engines used in the product.
This sandbox saves nothing. Reloading restores the original profile.
Accumulation to FI · today's dollars
A runway that answers back.
- FI target
- $1,493,342
- Savings rate
- 49%
- Monthly spending
- $4,500
- Target retirement
- Age 50
What-if lever
Monthly spending
If Alex keeps earning and saving, this path reaches financial independence around
age ≈46
4 years before the age-50 retirement target.
One result · deeper evidence
Stress-test the answer.
This base projection is live. An account unlocks Resilience depth, historical periods, and the full set of what-if controls for your own plan.
See my full runwayRunwayFI provides educational planning estimates, not financial advice. Consult a qualified professional before making financial decisions.