Calculate the monthly installment (EMI), total interest and total repayment for a construction or home-building loan.
Uses the standard reducing-balance EMI formula — the same method banks use. Actual bank rates, processing fees and eligibility vary; treat this as a planning figure and confirm the real rate with your lender.
EMI = P × r × (1+r)ⁿ ÷ ((1+r)ⁿ − 1), where P is the loan principal, r is the monthly interest rate, and n is the total number of monthly installments. This reducing-balance method is the universal standard used by every bank — each payment covers that month's interest on the remaining balance plus a portion of principal.
Early in the loan, most of each EMI goes toward interest because the outstanding principal is still high. As the balance shrinks over time, more of each equal installment goes toward principal — the total EMI stays flat, but its composition shifts.
Construction finance is often disbursed in stages tied to build progress (foundation, grey structure, finishing) rather than as one lump sum — ask your bank whether interest is charged only on the disbursed amount so far, which can make actual early payments lower than this full-principal estimate.