Financial calculators with visual results.
Solve the standard problems and watch how the math plays out over time. Inputs update results live; charts show how interest, principal, and growth compound across the horizon.
Enter four of the five variables and the calculator solves for the fifth. Same engine that powers loan, savings, and annuity problems — pick which value you want and the others become editable.
Standard fixed-rate amortization. Add an optional extra monthly payment to see how much you'd save in interest and how many months earlier the loan pays off.
Amortization schedule
| Month | Payment | Principal | Interest | Balance |
|---|
Initial deposit plus regular contributions, compounded over time. The chart separates what you put in from what the market did — a classic way to see the power of compounding.