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Finance / Mortgage Calculator UK

Mortgage Calculator UK

Estimate monthly principal-and-interest payments from a UK mortgage balance, annual rate and term. Use the lender’s compounding and repayment conventions for an exact offer comparison.

Your inputs

Make it your own
Calculator settings
GBP

%

years

Your result
1,169.18
GBP
Monthly repayment amount
Result breakdownPrincipal repaid: 200,000Interest paid: 150,754.02
Principal repaid · 200,000Interest paid · 150,754.02
Amount financed
200,000
Monthly payment
1,169.18
Total of payments
350,754.02
Total interest
150,754.02

Assumes a fixed rate and equal monthly payments; fees and insurance are excluded.

Example inputs shown. Adjust them to explore.

A familiar situation

For a UK home search, vary the mortgage balance, annual rate and term to compare repayment estimates. Check the lender’s own quote because product fees and rate conventions can differ.

How to use this calculator

  1. Enter mortgage balance, annual interest rate, mortgage term.
  2. Select Calculate to see the answer and its breakdown.
  3. Keep a scenario, change an input and compare the results.

Use consistent units and check the assumptions below before applying the result.

How mortgage calculator uk is calculated

This estimate assumes a fixed annual rate, equal monthly payments and no separate escrow. Early payments contain more interest; over time the principal share grows as the balance falls. Formula: Monthly payment uses the fixed-rate amortization formula. Use the displayed details to inspect the intermediate amounts and replace example assumptions with terms from your own quote or records.

Monthly payment uses the fixed-rate amortization formula.
A worked example

A £200,000 repayment mortgage at 5% over 25 years is about £1,169 per month.

Assumptions & useful context

Assumes a fixed rate and equal monthly payments; fees and insurance are excluded.

Financial projections use your assumptions. Actual returns, lender terms, fees and tax rules can differ; these results do not guarantee a future outcome.

Frequently asked questions

Mortgage Calculator UK: what does the result include?

No. It is principal and interest only unless those costs are part of the financed principal. Add escrow and recurring fees when comparing it with a lender’s full payment.

Mortgage Calculator UK: which assumptions matter most?

A longer term usually lowers each scheduled payment but gives interest more time to accrue. Compare total interest as well as the monthly amount.

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