Loan Calculator
Mortgage, interest, and payment calculations with amortization.
Loan Calculator
Calculation History
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Mortgage Calculations
- • Monthly payment calculation
- • Total interest over loan term
- • Amortization schedule support
- • Fixed-rate loan calculations
Financial Planning
- • Compare different loan terms
- • Calculate total cost of borrowing
- • Understand interest impact
- • Plan for monthly payments
Privacy & Features
- • 100% client-side calculations
- • No data sent to servers
- • Calculation history
- • Works offline
About the Loan Calculator
The Loan Calculator works out monthly payments, total interest, and an amortization breakdown for a loan or mortgage based on the amount, interest rate, and term. It turns abstract loan terms into the real numbers you’ll actually pay.
Before taking on a loan, you need to know what it costs: the monthly payment you must afford and the total interest over the life of the loan. Seeing the amortization also reveals how much of each payment goes to interest versus principal.
All calculations run in your browser with nothing uploaded and no account. Your figures stay private while you compare scenarios.
How to use the Loan Calculator
- Enter the loan amount (principal).
- Enter the annual interest rate.
- Enter the loan term (in years or months).
- Calculate to see the monthly payment and total interest.
- Review the amortization breakdown over time.
Common use cases
- Estimating the monthly payment on a mortgage or car loan.
- Comparing total interest across different rates or terms.
- Seeing how extra payments could affect a loan.
- Understanding the principal-versus-interest split over time.
Frequently asked questions
What do I need to calculate a payment?
The loan amount, the annual interest rate, and the term. With those three, the calculator computes your monthly payment and total interest.
What is an amortization schedule?
It’s a breakdown showing how each payment is divided between interest and principal over the life of the loan, and how the balance declines.
Does it include taxes and insurance?
It focuses on principal and interest. Real mortgage payments may also include taxes, insurance, and fees, which you’d add separately.
Is my financial data uploaded?
No. Calculations run in your browser, so your figures never leave your device.
How is this different from the Investment Calculator?
The loan calculator models money you borrow and repay; the Investment Calculator models money that grows over time.