Finance Playground
A calculator tells you what one set of numbers produces. The playground answers the next question: how much does that input actually matter? Put scenarios side by side, change one thing, and read the gap.
How a comparison works
- Pick a calculator, choose which input to vary, and set two to four values for it.
- Every other input is held identical. That is the point — if each scenario had its own assumed return, the gap between the lines would be a comparison of guesses rather than of choices.
- You get a table, a chart on shared axes, and a plain sentence saying what changed and by how much. Not which one is better — that depends on circumstances this site knows nothing about.
Compare
Each opens on the input worth seeing first. You can change it to any other.
Compare SIP scenarios
Opens varying Monthly investment, with every other input held identical.
InvestingCompare Lumpsum scenarios
Opens varying Investment amount, with every other input held identical.
InvestingCompare Step-Up SIP scenarios
Opens varying Annual step-up, with every other input held identical.
InvestingCompare Compound Interest scenarios
Opens varying Compounding frequency, with every other input held identical.
InvestingCompare Inflation scenarios
Opens varying Assumed inflation rate, with every other input held identical.
PlanningCompare Investment Goal scenarios
Opens varying Time available, with every other input held identical.
Planning
What this is not
- Not a forecast. Every rate here is a number you chose, and a steady rate held for decades is something markets never actually deliver.
- Not a recommendation. A comparison shows a difference. Whether that difference is worth anything to you depends on your income, your obligations and your tolerance for a bad decade — none of which this site knows.
- Not the arithmetic. For the formula and the working behind a single scenario, use the calculators.