Free Mortgage Calculator
Simulate your home financing using the PRICE Table. See monthly payments, total interest and the full amortization chart.
Financing Data
Simulate your home loan payments
Important Tip
Every 5% extra in down payment can reduce total interest paid by tens of thousands. Always simulate different down payment scenarios.
Simulate your loan
Enter the home price and bank conditions to see the full summary with amortization chart.
How Does Mortgage Calculation Work?
Payment calculation uses the French Amortization System (PRICE Table), where payments are fixed throughout the contract.
- M — Monthly payment
- P — Principal (financed amount)
- i — Monthly interest rate
- n — Total number of payments
💰 PRICE Table
Equal payments from start to finish. Early on you pay more interest; over time, more principal. Ideal for those wanting predictability.
📉 SAC System
Constant amortization. Larger payments early on, decreasing each month. You pay less interest in total. Ideal for those with higher income now.
Frequently Asked Questions
How do I compute a mortgage payment?
Use the PRICE formula: M = P × [i(1+i)^n] / [(1+i)^n - 1], where P is the financed amount, i the monthly rate, n the number of payments. Our calculator does this automatically.
What's the difference between PRICE and SAC?
PRICE keeps payments equal throughout the contract. SAC (Constant Amortization System) keeps amortization fixed but interest decreases each month, so payments fall over time.
How much down payment do I need?
Banks usually require a minimum 20% down payment. The bigger the down payment, the smaller the installments and the less total interest paid over the loan.