Ammortamento Prestito

How to use it

1. {'step': 1, 'description': 'Convert annual rate to monthly', 'calculation': '4.5% ÷ 12 ÷ 100 = 0.00375'}
2. {'step': 2, 'description': 'Calculate totale payments', 'calculation': '30 years × 12 = 360 months'}
3. {'step': 3, 'description': 'Apply mortgage formula', 'calculation': '$250,000 × [0.00375(1.00375)^360] ÷ [(1.00375)^360 - 1] = $1,266.71'}
4. {'step': 4, 'description': 'Calculate totale interest', 'calculation': '($1,266.71 × 360) - $250,000 = $206,015.60'}

Common mistakes

• ⚠️ Not accounting for property taxes and insurance in totale payment
• ⚠️ Paying only minimum without considering extra principale payments
• ⚠️ Refinancing without calculating break-even point on closing costs

Worked example

Calculating monthly payment for $250,000 mortgage at 4.5% over 30 years.

The payment of {payment} is your monthly mortgage payment. The total_interest of {total_interest} is paid over the loan life.

Input guide