Salary Equivalence · Newcastle → Cardiff · 2026

What does £40,000 in Newcastle
equal in Cardiff?

Based on cost-of-living indices (Newcastle 61 vs Cardiff 64, London = 100), £40,000 in Newcastle has the same purchasing power as approximately £41,950 in Cardiff. Cardiff is 5% more expensive overall.

Newcastle salary
£40,000
COL index 61
Cardiff equivalent
£41,950
COL index 64
COL difference
5%
Cardiff is more expensive
Equivalent purchasing power in Cardiff
£41,950
= £40,000 in Newcastle after cost-of-living adjustment
based on COL index 61 → 64 (London = 100)

Why £40,000 in Newcastle equals £41,950 in Cardiff

The equivalent accounts for the real cost of maintaining the same standard of living. Newcastle rent averages £750/month versus £900/month in Cardiff — a +£150/month premium. Beyond rent, Cardiff is overall 5% more expensive across groceries, transport, restaurants, and utilities (Numbeo COL index 64 vs Newcastle's 61).

To achieve the same disposable income in Cardiff, you would need to earn £41,950 — calculated using Rightmove Q1 2026 rental data and HMRC 2025/26 tax rates. Any offer below £41,950 in Cardiff represents a real-terms pay cut.

Cost Comparison — Newcastle vs Cardiff

Metric Newcastle Cardiff Difference
COL index 61 64 +3 pts
1-bed rent £750/mo £900/mo +£150/mo
Monthly rent premium — — +£150/mo
Annual rent premium — — +£1,800/yr

COL indices from Numbeo 2025 (London = 100). Rent = Rightmove Q4 2025 median for a 1-bed flat.

Relocation Financial Impact

Moving from Newcastle to Cardiff costs £150/month more in rent (£750 → £900/mo).

+£1,800/yr
annual housing premium

You need £41,950 in Cardiff to match your Newcastle lifestyle — £1,950 more than your current Newcastle salary.

Other Salary Points — Newcastle → Cardiff

£35,000 → £36,700 £45,000 → £47,200 £50,000 → £52,450

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Frequently Asked Questions

What salary in Cardiff matches £40,000 in Newcastle? +
£41,950 in Cardiff provides the same purchasing power as £40,000 in Newcastle. This is based on Newcastle's COL index of 61 vs Cardiff's 64 (London = 100, Numbeo 2025). The 5% cost difference translates directly to a 5% higher equivalent salary.
Is Cardiff significantly cheaper than Newcastle? +
Cardiff is 5% more expensive overall than Newcastle. The most visible difference is rent: Newcastle averages £750/month for a 1-bed flat vs £900/month in Cardiff — a premium of £150/month (£1,800/year).
How is the salary equivalence calculated? +
SalaryDex uses city-level cost-of-living indices from Numbeo 2025, normalised so London = 100. The formula is: equivalent = salary × (cityB COL ÷ cityA COL). For this page: £40,000 × (64 ÷ 61) = £41,950. The index captures overall cost differences including rent, food, transport, utilities and services. It does not account for individual tax positions or lifestyle choices.
Should I accept a lower salary to move from Newcastle to Cardiff? +
Moving to Cardiff requires a higher salary to maintain your standard of living. You need approximately £41,950 — £1,950 more than your current £40,000 in Newcastle. Cardiff is 5% more expensive overall and rent averages £900/month vs £750.

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