Financial

Payment Calculator

Solve the periodic payment needed for a loan, savings goal, or future-value target.

Inputs

Defaults are prefilled so the result is visible immediately.

Present value

Future value target

Annual rate%

Number of paymentsmonths

Payment timing

Results

Results update as the calculator inputs change.

Required payment

$400.76

Total paid

$24,045.54

Finance charge or growth need

$4,045.54

Number of payments

Payment timing

End

Formula and Assumptions

PMT = (FV + PV x (1 + r)^n) x r / ((1 + r x due) x ((1 + r)^n - 1)).

A future value of zero models a normal amortizing loan.

A positive future value models an amount that should remain or be reached after the payment series.

Reference Upgrade

Built from the Calculator.net model, with added context.

Live validation and instant result updates instead of a submit-only workflow.

Multiple decision metrics are shown together, not only the primary answer.

Formula notes and assumptions are visible on the page so the math is easier to audit.

Reference Model

Modeled after the input style and primary output on Calculator.net's Payment Calculator.

The page keeps the math in one place and exposes the assumptions beside the result.

Default inputs: presentValue=20000, futureValueTarget=0, interestRate=7.5, months=60, timing=end