Enter your home loan details to get started
Try an example, or enter your own values above.
How to use the Mortgage Calculator
- Type in the home price and how much you’ll pay upfront as a down payment.
- Type in the annual interest rate and the loan term in years.
- Click Calculate Payment to see your monthly payment, loan amount, and total interest.
- Use the Copy or Share buttons to save or send your result.
Tip: A larger down payment reduces both your monthly payment and total interest paid over the life of the loan.
Common mistakes to avoid
- Entering a down payment larger than the home price.
- Forgetting property taxes and insurance aren’t included in this estimate.
- Using a monthly rate instead of the annual rate.
How mortgage payments are calculated
The standard amortization formula
Loan Amount = Home Price − Down Payment. Monthly Payment = [L × r × (1+r)^n] ÷ [(1+r)^n − 1], where L is the loan amount, r is the monthly interest rate, and n is the total number of monthly payments.
When to use this tool
Useful for budgeting a home purchase, comparing different down payment scenarios, or estimating affordability before house-hunting.
✓ Pros
- Works instantly, right in your browser
- Shows loan amount, payment, and total interest together
- No sign-up, no ads blocking the result
✕ Limitations
- Doesn’t include property taxes, insurance, or HOA fees
- Assumes a fixed interest rate for the full term
- Doesn’t model adjustable-rate mortgages
Quick Mortgage Reference
Example home loans and their approximate monthly payment.
| Loan Amount | Rate / Term | Monthly Payment |
|---|---|---|
200,000 | 6.5% / 30yr | ~1,264 |
300,000 | 6.5% / 30yr | ~1,896 |
400,000 | 6% / 15yr | ~3,375 |
Enter your own exact home price, down payment, rate, and term above for a precise result.
Features
Loan amount + payment breakdown
Instant results
No data stored
Mobile friendly
How TickmarkTools compares
An honest, feature-by-feature look at browser-based calculator tools.
| Feature | TickmarkTools | Typical free sites | Premium suites |
|---|---|---|---|
| Price | Free | Free / freemium | Free tier + paid plans |
| Sign-up required | No | Often yes | Yes |
| Data leaves your device | Never | Usually | Usually |
| Watermark on export | None | Sometimes | On free tier |
| Mobile friendly | ✓ | Varies | ✓ |
| Works without account | ✓ | Varies | ✗ |
These are general, illustrative observations about common patterns across free online calculator tools as a category — not verified or benchmarked data about any specific named competitor or product. Individual sites vary and may differ from what's shown here.
Why you can trust this tool
No data stored
Your input is never saved or logged.
Secure processing
All processing happens client-side in your browser.
Fast processing
Results render in milliseconds, no waiting.
Mobile friendly
Use this tool from any device.
No sign-up
No account, no email, no watermark.
Works offline*
Once loaded, this tool needs no internet connection.
Accuracy & limitations
This calculator is built for speed and accuracy, but it's worth understanding what it does and doesn't account for:
- No taxes or insurance. Property taxes, homeowners insurance, and HOA fees are not included in this estimate — your actual payment will likely be higher.
- Fixed rate assumption. This calculator assumes a fixed interest rate for the entire loan term.
- No adjustable-rate modeling. For adjustable-rate mortgages (ARMs), the payment will change over time in ways this tool doesn’t model.
Mortgage Calculator FAQ
Yes, the Mortgage Calculator is completely free with no sign-up required.
No — all calculations happen locally in your browser.
No, this estimate covers principal and interest only — your actual monthly payment will likely be higher with taxes and insurance.
The loan amount will equal the full home price, resulting in a higher monthly payment and more total interest.
Yes, enter your remaining loan balance as the "Home Price" with 0 down payment.
No. All calculations run entirely in your browser, and nothing you enter is ever sent to a server or stored.
💡 Quick Help
Tap a common question below for an instant, pre-written answer. This is a deterministic help widget, not a live AI assistant.
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