Home Back

Current Mortgage Rates UK Money Saving Expert

Mortgage Payment Formula:

\[ PMT = P \times \frac{r}{12} \times \frac{(1 + \frac{r}{12})^{12 \times t}}{(1 + \frac{r}{12})^{12 \times t} - 1} \]

GBP
%
years

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is the Mortgage Payment Formula?

The mortgage payment formula calculates the fixed monthly payment required to repay a loan over a specified term at a given interest rate. It's based on the amortization formula that distributes payments evenly over the loan term.

2. How Does the Calculator Work?

The calculator uses the mortgage payment formula:

\[ PMT = P \times \frac{r}{12} \times \frac{(1 + \frac{r}{12})^{12 \times t}}{(1 + \frac{r}{12})^{12 \times t} - 1} \]

Where:

Explanation: The formula calculates the fixed monthly payment needed to fully amortize a loan over its term, accounting for both principal and interest components.

3. Importance of Mortgage Calculation

Details: Accurate mortgage calculation helps borrowers understand their financial commitments, compare different loan offers, and budget effectively for home ownership.

4. Using the Calculator

Tips: Enter the loan amount in GBP, annual interest rate as a percentage (e.g., 4.5 for 4.5%), and loan term in years. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What factors affect mortgage payments?
A: The three main factors are loan amount, interest rate, and loan term. Higher amounts, higher rates, or shorter terms result in higher monthly payments.

Q2: Does this calculator include additional costs?
A: No, this calculates only the principal and interest portion. Additional costs like property taxes, insurance, and PMI are not included.

Q3: How does interest rate affect payments?
A: Even small rate changes can significantly impact monthly payments. A 0.5% rate increase on a large mortgage can add hundreds to monthly payments.

Q4: What's the difference between fixed and variable rates?
A: Fixed rates remain constant throughout the term, while variable rates can change, affecting future payments. This calculator assumes a fixed rate.

Q5: How accurate is this calculator?
A: It provides accurate estimates for fixed-rate mortgages. Actual payments may vary slightly due to rounding methods used by specific lenders.

Current Mortgage Rates UK Money Saving Expert© - All Rights Reserved 2025