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Loan Interest calculator

Calculate the interest and repayment schedule for a loan, with simple or compound options and a processing fee.

How it works Report a problem

💳 Loan Interest Calculator

Advanced compound & simple interest engine with full amortization schedule

Loan Details
Advanced Options
Monthly EMI Payment
$0.00
Total outflow over loan period
Total Interest
$0
Total Repayment
$0
Processing Fee
$0
Effective APR
0%
Amortization Schedule (First 12 Months)
MonthOpening BalanceEMIPrincipalInterestClosing Balance
Financial Intelligence

About the Loan Interest calculator

Calculate the interest and repayment schedule for a loan, with simple or compound options and a processing fee.

How to use the Loan Interest calculator

  1. Enter the Principal Amount, Annual Interest Rate (%) and Loan Tenure (Years).
  2. Choose the Loan Type, Compounding, Processing Fee (%) and Currency.
  3. Press Calculate Interest & Schedule.

Formula and method

Simple interest: P × r × t. Amortising loan: Payment = P × r × (1 + r)ⁿ ÷ ((1 + r)ⁿ − 1).

Tips

  • Add the processing fee to the cost when comparing lenders.
  • Ask whether the loan uses a flat rate or a reducing balance, because flat rates cost more.

Frequently asked questions

What is a flat rate versus a reducing balance rate?
A flat rate charges interest on the original amount for the whole term. A reducing balance rate charges it only on what is still owed, so it costs less.