Balance
See how each assumption changes your future balance. Model returns, inflation, fees, and contribution habits with instant chart updates.
Strategies
Compare strategies
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Pick one or more cards above to compare how each strategy performs over time.
Timeline
30 years
Contribution timeline
$10K start · $300/mo · 30 years
Starting point
Your balance today and monthly contribution.
Initial principal
Monthly contribution
Timeline
How long contributions last.
Contribution duration
Time horizon
Inflation + growth
Adjust the real-world assumptions.
Inflation rate
Contribution growth
FAQ
Answers to common questions
What does Balance help me do?+
Balance lets you compare how different assumptions change long‑term outcomes. Adjust contributions, fees, inflation, and returns to see the relative impact side by side.
How should I interpret the projections?+
They are simplified estimates based on your inputs. Use them to compare strategies and explore trade‑offs, not as a prediction or guarantee.
Do you store my data?+
Right now, Balance saves your inputs locally in your browser only.
What does the model leave out?+
This is a majorly simplified model. Real markets move up and down unpredictably, and taxes, behavior, and timing can change outcomes.
What does total fees include?+
We include fund fees, fixed monthly costs, and one‑time fees.
Why do contributions stop after a set number of years?+
It models a realistic savings window, like pausing contributions after retirement or reaching a goal.