EMI is the fixed monthly payment made to a lender to repay a loan. Know EMI full form, meaning in banking, calculation, and key factors affecting EMI. EMI or Equated Monthly Installment is a monthly payment made by the borrower to the lender in order to repay the borrowed loan amount. What is EMI Full Form? Learn EMI meaning, calculation, and key factors affecting EMI. EMI stands for Equated Monthly Installment—a fixed monthly loan repayment including principal and interest. EMI stands for equated monthly instalment it is the monthly amount you must pay your lender to repay a loan. Let's understand EMI in detail.