Tool · Model · Decide

Student Loan Calculator

An interactive way to change borrowing and repayment assumptions and immediately see how those choices affect the outcome.

What it is

Make the assumptions something you can actually play with.

Instead of explaining a financial scenario in static text, the calculator lets someone change variables and see the consequences for themselves.

Scenario modelingInteractive calculationsComparisonPersonalized outputDecision support
The fun in function

The reusable piece isn't the student-loan math.

It's the interaction pattern: take a complicated decision, expose the important variables, and let the person manipulate them until the tradeoffs become understandable.

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Where it can go

The same pattern can power a lot more.

ROI models, pricing comparisons, savings estimates, business cases and planning tools can all use the same basic structure: change the assumptions, see the outcome, make a better decision.

See it

Want to try it?

Join the Playground and get access to the working version.

Think with it

What does this make possible?

The point isn't only the app itself. It's the reusable capability underneath it.

Keep exploring

See the other projects

Each project starts somewhere different, but the useful pieces often overlap.

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