How Loan EMI is Calculated: Formula & Details

AKASH
May 20, 2026
Personal Finance

The EMI Calculation Process

An Equated Monthly Installment (EMI) is a fixed payment amount made by a borrower to a lender at a specified date each calendar month. EMIs consist of both principal and interest components.

The Mathematical Formula:

The mathematical formula for calculating EMI is:

EMI = [P x R x (1+R)^N] / [(1+R)^N - 1]

Where:

  • P: Principal Loan Amount
  • R: Monthly Interest Rate (Annual Rate / 12 / 100)
  • N: Number of Monthly Installments