Mortgage Calculator
Estimate mortgage principal, interest, taxes, insurance and HOA costs from editable assumptions.
✓ No signup✓ Mobile friendly✓ Clear limitations✓ Browser-first where practical
Recent tools are remembered only on this device.
Planning estimate only. Estimate principal-and-interest plus optional property tax, insurance and HOA. Actual lender quotes, escrow, mortgage insurance and closing costs can differ.
Loan amount$320,000
Principal + interest / month$2,022.62
Estimated total / month$2,572.62
Total interest$408,142
Why use this mortgage calculator?
Use this free mortgage calculator directly in your browser. There is no account to create and the result appears immediately.
How to use it
Start with the inputs shown above, review the assumptions or options, then generate the result. Where the tool creates a file, keep the original until you have opened and checked the downloaded output.
Frequently asked questions
Is Mortgage Calculator free?
Yes. The core tool is free to use without creating an account.
Do I need an account to use Mortgage Calculator?
No. You can use the core Toolbox workflow without signing up.
Does Mortgage Calculator work on mobile?
Yes. Toolbox is designed for modern mobile and desktop browsers, although complex file workflows can be easier on a larger screen.