Loan Calculator

About Loan Calculator

Before signing a loan agreement, you should know exactly what you're committing to. Davirix Loan Calculator takes three inputs — amount, annual interest rate, and term in months or years — and gives you the complete financial picture. The monthly payment is calculated using standard amortization formulas. Below that, you'll find the total interest paid over the life of the loan, the total amount paid, and a month-by-month amortization table showing how much of each payment goes to principal vs. interest. The interactive chart reveals how the balance decreases over time, making it easy to see the impact of making extra payments.

Key Features

• Monthly payment calculation with standard amortization
• Total interest and total cost over the loan term
• Full month-by-month amortization schedule
• Interactive chart: principal vs. interest breakdown
• Extra payment simulator to see early payoff dates
• Export amortization schedule as CSV

How to Use Loan Calculator

1. 1

   Enter loan details

   Input the loan amount, annual interest rate, and loan term (months or years).

2. 2

   Review your payment

   See the monthly payment, total interest, and total cost immediately.

3. 3

   Explore the amortization table

   Scroll through the month-by-month breakdown. Optionally add extra payments to see the impact.

Frequently Asked Questions

What formula is used?

The standard fixed-rate amortization formula: M = P × [r(1+r)^n] / [(1+r)^n – 1], where P is principal, r is monthly rate, and n is total payments.

Does it include taxes and insurance?

This calculator covers principal and interest only. Property taxes, insurance, and PMI are separate costs — add them manually for a complete monthly housing cost.

Can I simulate extra payments?

Yes. Enter a monthly or one-time extra payment amount to see how it reduces total interest and shortens the loan term.