# Mortgage Payment Calculator

> Estimate your monthly mortgage payment including principal, interest, taxes, and insurance. Enter loan amount, rate, and term for a full breakdown. Private.

- **Canonical URL:** https://boringtoolskit.com/mortgage-payment-calculator/
- **Category:** Finance & Investing
- **Evidence level:** authored-methodology
- **Reviewed:** July 2026
- **Last verified:** 2026-09-21
- **Privacy:** Inputs and results stay in this browser unless the page clearly labels an external request.

## How it works

Monthly principal and interest = P × r ÷ (1 − (1+r)^−n); all-in payment adds monthly tax, insurance, PMI estimate, and HOA.

## Assumptions

- Fixed rate and level principal-and-interest payments are assumed.
- Property tax and insurance remain constant.
- PMI cancellation rules, closing costs, utilities, and maintenance are not modeled.

## Common questions

### How is a monthly mortgage payment calculated?

Monthly P&I equals loan principal multiplied by the monthly rate, divided by 1 minus one plus the monthly rate raised to the negative number of payments.

### What does the all-in monthly mortgage payment include?

It combines monthly principal and interest with the entered property tax, PMI estimate, and homeowners insurance amounts.

### What does a P&I amortization schedule show?

It shows each scheduled principal-and-interest payment split between interest and principal, along with the remaining loan balance over time.

## Related tools

- /mortgage-afford/
- /mortgage-refinance-break-even/
- /loan-comparison-calculator/

## Sources

- [Explore interest rates and loan options](https://www.consumerfinance.gov/owning-a-home/explore-rates/)
- [Buying a home resources](https://www.hud.gov/buying/loans)

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*Local planning estimate. Verify current terms, rates, and policies before acting.*