About

About 4LoanSimulator

A free, no-nonsense loan calculator that shows the real cost of borrowing — clearly and instantly.

4LoanSimulator was built on a simple idea: borrowing money is a big decision, and you deserve a clear picture of the full cost before you commit. Our calculator shows your monthly payment, the total you will pay, and exactly how much of it is interest.

What our calculator does

Clear breakdown. See your total cost split into the loan amount and total interest, so you know exactly what borrowing costs you.

Compare scenarios. Change the rate or term and watch the monthly payment and total interest update instantly, so you can find the best fit.

Instant results. The numbers update as you type — no waiting, no page reloads.

Private by design. Everything runs in your browser. Nothing you enter is sent to a server.

Part of the 4Utilities family

4LoanSimulator is one of a growing family of free, focused online tools. We believe everyday software should be fast, accessible, and respect your privacy — and we build every tool with that in mind.

Have feedback or an idea? Visit our Contact page — we'd love to hear from you.

4LoanSimulator provides estimates for planning purposes only and is not financial advice. Actual loan terms and rates vary by lender.