Free broadband tool

Broadband monthly cost comparison calculator

The cheapest monthly price isn't always the cheapest deal. Add set-up fees and price rises to see the real cost.

Deal 1 — cheapest per month

£600.00 total

Works out at £25.00 a month

Deal 2

£504.00 total

Works out at £28.00 a month

Find each deal's set-up fee and price rise in its terms. Always check the final price with the provider.

Why the total matters

A deal at £25 a month with a £50 set-up fee and a £3 rise can cost more than a £27 deal with no extras. Comparing the average monthly cost over the whole contract makes deals with different lengths fair to compare.

Price rises

Since January 2025, Ofcom rules mean providers must show any mid-contract rise in pounds and pence when you sign up, so you can enter it here.

Results are estimates to help you decide. Your calculations stay on your device — we don't save them.

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