# Mortgage calculator

> Estimate a mortgage payment with your monthly costs.

[Open tool](https://www.toolcabana.com/su/mortgage) · [Calculators and finance](https://www.toolcabana.com/su/category/calculators-and-finance)

Tool ID: mortgage. Requested language: su. Description language: en. Complete guide translation: no; untranslated sections use English.

## Overview (en)

The Mortgage calculator takes a loan amount after down payment, annual interest rate and a term of 1 to 100 years and returns the monthly principal and interest, total interest and total paid. Optional monthly property tax, insurance and HOA amounts are added to give an estimated total monthly payment. It is a simplified estimate, not a lender quote.

## Supported tasks (en)

Monthly principal and interest is only the loan. The estimated total adds the property tax, insurance and HOA amounts you enter; it is not a lender quote.

## Steps (en)

1. Adjust the values; an initial result is calculated from the defaults.
2. Change the basic settings or open Advanced mode to fine-tune the result.
3. Review and copy or download your result. Pause Live results to run manually. Sources or individual settings above 20,000 characters require an explicit run.

## Settings

- Loan amount after down payment (en; key: principal; type: number); minimum: 0
- Annual interest (%) (en; key: rate; type: number); minimum: 0; maximum: 100
- Years (en; key: years; type: number); minimum: 1; maximum: 100
- Property tax per month (en; key: tax; type: number); minimum: 0
- Insurance per month (en; key: insurance; type: number); minimum: 0
- HOA per month (en; key: hoa; type: number); minimum: 0

## Limitations (en)

Use finite numbers, valid dates and the ranges shown by each control. Invalid values produce an error without a downloadable result.

## Privacy and connections (en)

This operation processes its source in your browser. Copy and download are explicit actions; source input is not saved in an account or history.

## Questions (en)

### How is a mortgage payment calculated?

The term in years is multiplied by 12, the annual rate is divided by 1200, and the payment is loan × r / (1 − (1 + r)^−months). A 300,000 loan at 6% over 30 years gives about 1,798.65 in principal and interest per month.

### Does the mortgage payment include property tax and insurance?

Monthly principal and interest covers the loan only. The estimated total monthly payment adds the property tax, insurance and HOA amounts you enter per month. Those extras are not part of the loan formula and do not change total interest.

### Should I enter the home price or the loan amount?

Enter the loan amount after your down payment. The calculator does not ask for a home price or down payment percentage, so subtract the down payment first. A 375,000 home with 75,000 down is entered as 300,000.

### Where is my input processed?

This operation processes its source in your browser. Copy and download are explicit actions; source input is not saved in an account or history.

### What are the input limits?

Use finite numbers, valid dates and the ranges shown by each control. Invalid values produce an error without a downloadable result.

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- [Simple interest calculator](https://www.toolcabana.com/su/simple-interest)
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