Public Loan Calculator

Calculate instalments across 3 interest methods.

Estimate total interest, monthly instalments, payment dates, and closing balances using flat/simple interest, reducing balance, or compound interest before you create or manage a loan.

Calculate Schedule Sign In

Flat / simple interest Reducing balance Compound interest

Schedule Preview Professional repayment planning at a glance

Live calculator

Principal P 0.00

Term 1 month

Method Flat / Simple Interest

Total Interest P 0.00

Total Repayable P 0.00

Interest model Flat / Simple Interest

Method summary Interest is based on the original principal for the full term.

Output Opening balance, payment, principal, interest, closing balance

Loan Inputs

Enter the loan details to calculate the repayment schedule and the total interest charged across the full term.

Loan Amount Interest Rate (%) Loan Term (months) Start Date Interest Calculation Method

Flat / Simple Interest Interest is based on the original principal for the full term.

Reducing Balance Interest is based on the outstanding principal each period.

Compound Interest Unpaid interest is added into the balance and future interest is charged on principal plus accrued interest.

Total Interest P 0.00

Total Repayable P 0.00

Calculation logic Interest is based on the original principal for the full term.

Amortisation Schedule

Each row shows the month, payment date, opening balance, charged interest, principal recovered, and closing balance.

Total Interest: P 0.00 Total Repayable: P 0.00

Month	Payment Date	Opening Balance	Payment	Principal	Interest	Closing Balance
1	2026-05-22	P 0.00	P 0.00	P 0.00	P 0.00	P 0.00