Compare Calculator Results
Set up two scenarios side by side. Pick a calculator for each, change any input, and see the difference in every result and on the chart. It updates as you type.
Scenario A
An assumption you choose, not a guaranteed return.
Scenario B
An assumption you choose, not a guaranteed return.
Ending balance
Scenario B ends with $260,463 more (86.6% higher).
| Result | Scenario A | Scenario B | Difference (B − A) |
|---|---|---|---|
| Estimated future value | $300,851 | $561,314 | +$260,463 (+86.6%) |
| Total contributed | $130,000 | $250,000 | +$120,000 (+92.3%) |
| Investment growth | $170,851 | $311,314 | +$140,463 (+82.2%) |
| Total return | 131.42% | 124.53% | −6.89 pts |
Balance over time
Year-end balances. A line stops early when that calculator's projection is shorter, for example when a FIRE scenario reaches its target.
How to use the comparison
The simplest comparison changes one thing. Keep the same calculator on both sides, use "Copy A into B", then change a single input in Scenario B, like the monthly contribution, the time period or the assumed return. The difference column then shows exactly what that one change is worth.
You can also compare different calculators. Put the dividend calculator in both scenarios with dividends reinvested in one and taken as cash in the other, or set a retirement plan against a FIRE plan to see how early retirement changes the balance you build.
All calculators use the compounding method described on our methodology page.
Frequently asked questions
This is an educational calculator, not financial advice.
Results shown are estimated future values based on the return assumption you enter — they are not predictions and VOO is not guaranteed to achieve any particular return. Past performance of the S&P 500 or any fund does not guarantee future results. Consider speaking with a licensed financial professional before making investment decisions.