If you want to do the monthly mortgage payment calculation by hand, you’ll need the monthly interest rate — just divide the annual interest rate by 12 (the number of months in a year). For example, if the annual interest rate is 4%, the monthly interest rate would be 0.33% (0.04/12 = 0.0033).
Moreover, how do you calculate total loan payments?
To calculate the total amount you will pay for the loan, multiply the monthly payment by the number of months.
Moreover, how do you calculate a loan repayment schedule?
Starting in month one, take the total amount of the loan and multiply it by the interest rate on the loan. Then for a loan with monthly repayments, divide the result by 12 to get your monthly interest. Subtract the interest from the total monthly payment, and the remaining amount is what goes toward principal.