Amortization Calculator
Calculate your loan payments and see how they break down between principal and interest over time.
Loan Parameters
Loan Summary
Click "Calculate Amortization" to see the loan summary.
Amortization shows how your loan payments
are split between principal and interest over time.
What is Amortization Calculator?
Understanding Loan Amortization
Loan amortization is the process of paying off a debt through regular, scheduled payments over time. Each payment consists of both principal (the amount borrowed) and interest (the cost of borrowing), with the proportion shifting over the life of the loan.
How Amortization Works
Early Payments
In the beginning, most of your payment goes toward interest because the outstanding balance is larger. Only a small portion reduces the principal.
Later Payments
As time progresses, more of your payment goes toward principal and less toward interest, since you're paying interest on a smaller balance.
Key Amortization Concepts
Fixed Payment Amount
Your monthly payment remains the same throughout the loan term, but the split between principal and interest changes with each payment.
Interest Calculation
Interest for each payment is calculated on the remaining loan balance. As the balance decreases, so does the interest portion.
Principal Reduction
The principal portion increases over time, accelerating the payoff of your loan balance in the later years.
Benefits of Understanding Amortization
- Plan your budget by knowing exactly what you'll pay each month
- Understand how extra payments can save you thousands in interest
- See how much of your home you'll own (equity) at any point in time
- Compare different loan terms and their impact on total interest paid
- Make informed decisions about refinancing opportunities
- Track your progress toward full loan payoff
Strategies to Save on Interest
Make Extra Principal Payments
Even small additional payments toward principal can significantly reduce total interest and shorten your loan term.
Bi-weekly Payments
Making half your monthly payment every two weeks results in 26 payments (equivalent to 13 months) per year, reducing your loan term.
Refinance When Rates Drop
If interest rates fall significantly, refinancing can reduce your monthly payment or allow you to pay off your loan faster.
Choose a Shorter Term
While monthly payments are higher, shorter loan terms (like 15 years vs 30 years) can save tens of thousands in interest.