Calculate required installment payment for financing plans and debt schedules.
Overview
Payment planning starts with knowing the exact periodic amount required.
This calculator solves for payment when principal, rate, and term are known.
It is useful for business financing, consumer debt, and internal budgets.
Run alternate terms to balance affordability and total cost.
Steps
Enter current amount to be repaid.
Use a rate aligned with payment frequency.
Set total installments in schedule.
Review fixed payment required to amortize balance.
Compare rates and terms side by side.
Math
PMT = P[r(1+r)^n] / [(1+r)^n - 1]
The annuity payment formula computes constant payment needed to repay principal plus interest.
Worked cases
Solve PMT using quarterly rate and period count.
Output gives required quarterly payment.
Convert APR to monthly rate and solve.
Payment estimate supports monthly cash-flow planning.
Reduce n and recalculate PMT.
Higher payment but lower total interest.
Why use this
Questions