Cardiff and Bristol sit 44 miles apart across the Severn Bridge, separated by 50 minutes on the GWR South Wales main line and 1 hour on the M4 motorway. Bristol is the larger metro at 720,000 wider population with the deeper tech, aerospace, and the finance employer base; Cardiff is the 360,000 core with the 470,000 wider metro, the Welsh capital, the BBC Wales Drama Village base, and the structural cost advantage that the Welsh devolved framework supports. The rent gap runs 380 dollars a month in Cardiff's favor on a central one bedroom.
The two cities answer different questions. The headline number resolves the index, the breakdown resolves the fit.
Bristol wins on the 8.0 index against Cardiff at 7.5, the salary line that runs 14 to 22 percent above the Cardiff equivalent at the mid and senior tier, the aerospace and the engineering employer base across Airbus Defence and Space at Filton, Rolls Royce, BAE Systems, and Dyson, the technology cluster across Engine Shed and Future Space, and the structural UK quality of life ranking at number 3 nationally. Cardiff wins on the absolute cost basket that runs 16 percent below Bristol on the monthly all in, the BBC Wales Drama Village base at Roath Lock that anchors Doctor Who and Casualty production, the Welsh capital civic functions across the Senedd and the Welsh Government estate, and the access to the Brecon Beacons and the Gower coast at the weekend distance.
Bristol scored 8.0 on the everycity index in 2026, Cardiff scored 7.5. The headline gap is 0.5 of a point, driven by Bristol on job density and salary and Cardiff on the structural cost advantage. For the long form, see the Cardiff city profile and the Bristol city profile.
The cleanest decision rule we have found: if the work is in aerospace at Airbus Filton or Rolls Royce, technology at the Engine Shed or the wider Bristol Bath corridor, finance at the Bank of America Merrill Lynch operations center, or the household wants the structural UK quality of life ranking at number 3 nationally, Bristol is the math. If the work is in broadcast media at BBC Wales Drama Village or S4C, the civic and the public administration roles at the Welsh Government or the Senedd, or the household wants the 380 dollar a month rent discount and the Welsh language exposure for the bilingual upbringing, Cardiff is the math.
For the regional context, both cities anchor the United Kingdom, with Bristol in England and Cardiff in Wales inside Europe. For the cross country read, see Cardiff vs Swansea and Bristol vs Bath. The cheapest UK cities ranking places Cardiff at number 9 and Bristol at number 28; the quality of life ranking places Bristol at number 18 in Europe and Cardiff at number 42.
Twelve line items priced May 2026 for a single resident in a central one bedroom. Green text marks the cheaper city per line.
Cardiff is cheaper on twelve of twelve lines. The rent gap is 380 dollars on a central one bedroom and 520 dollars on a family three bedroom, compounding across a 12 month tenancy into 4,560 to 6,240 dollars of preserved capital before tax. The Bristol premium is structural, off the demand at the Clifton, Redland, and Southville postcodes against a constrained central supply pipeline that the Bristol City Council planning regime has not unblocked at the speed of the inbound aerospace and tech workforce.
The Cardiff Bus and the Cardiff Central rail zone pass at 88 dollars against the Bristol First West bus pass at 92 dollars is a 4 dollar gap inside the noise band. The Cardiff cost of living guide and the Bristol cost of living guide walk the basket math.
For the international transfer math, Wise handles the EUR and USD conversion at within 0.5 percent of the mid market rate. Rightmove and Zoopla dominate the rental listings; Spareroom shows central flat shares at 540 to 720 pounds a month in Cardiff and 720 to 1,080 pounds in Bristol.
The 10 point safety read across the five sub axes the methodology weights equally.
Bristol wins safety on three of five sub axes; Cardiff wins on petty crime by 0.4 and ties on solo female day. The 7.8 Bristol overall and the 7.6 Cardiff overall both sit mid quartile inside the UK. South Wales Police recorded 84.2 violent crime incidents per 1,000 in Cardiff in 2025 against the Avon and Somerset Police 70.2 per 1,000 in Bristol. Cardiff after dark scores 6.8 reflecting the St Mary Street and the Cardiff Bay weekend concentration.
For the new arrival, SafetyWing covers the first six months at 45 to 60 dollars a month. The safest UK cities ranking places Bristol at number 14 and Cardiff at number 22.
Healthcare. Both cities run the universal NHS at zero direct cost, with NHS Wales operating the Cardiff and Vale University Health Board (UHW) and the Children's Hospital for Wales at Heath Park, and NHS England operating the University Hospitals Bristol and Weston (UHBW) trust. Specialist wait times run 14 to 36 weeks in Cardiff and 10 to 28 weeks in Bristol on the 2025 NHS Wales and NHS England data. Private supplement runs 60 to 130 pounds a month for the under 40 single. The healthcare Wales versus England guide walks both.
Annual averages, the worst month, and the count of days in the comfort band.
Bristol runs 24 more sunshine hours annually and 7 fewer rainy days than Cardiff, with a marginal 1F summer high advantage. Cardiff's position 4 miles inland from the Bristol Channel and the Severn Estuary mouth catches the prevailing southwesterly that pulls 145 rainy days a year. Both cities sit inside the oceanic Koppen classification with the maritime moderation that the Bristol Channel exerts on the lower Severn corridor.
The climate match tool finds cities with similar profiles. Both Cardiff and Bristol pair with Dublin, Cork, and Plymouth on the maritime oceanic axis.
Air quality. Cardiff PM2.5 averages 8 micrograms year round, inside the WHO interim guideline. Bristol PM2.5 averages 8 micrograms also. The Cardiff Clean Air Zone consultation closed in 2024 with no scheme launched at the May 2026 read; the Bristol Clean Air Zone (introduced November 2022) has compressed central traffic emissions by 12 percent against the 2019 baseline. The clean air ranking places both inside the European top 50.
Median salaries for three mid level roles, the headline tax band, and the effective rate after standard deductions.
Bristol pays 17 to 21 percent more on gross salary across mid and senior engineering and the finance VP track. The Cardiff salary curve has lifted 12 percent since 2021 on the BBC Wales relocation to Central Square, the AB InBev Welsh headquarters move, and the Admiral Group expansion at the Capital Tower, but the absolute ceiling sits 16 to 19 percent below Bristol on the engineering and finance axis.
Tax. Both cities run the same rest of UK income tax bands. The Welsh income tax variation provision under the Wales Act 2014 has not deviated from the UK rates at the May 2026 read. The tax calculator tool runs the take home for either.
Major employers in Cardiff are BBC Wales at Central Square, S4C, Admiral Group, AB InBev (UK headquarters), Legal and General, the Welsh Government, the Senedd, the University of Cardiff, and the NHS Wales Cardiff and Vale UHB. Major employers in Bristol are Airbus Defence and Space at Filton, Rolls Royce, BAE Systems, Dyson, Graphcore, OVO Energy, Bank of America Merrill Lynch operations, the University of Bristol, and the NHS Bristol trust.
The qualitative axes scored on the same 10 point scale the index uses elsewhere.
Bristol wins lifestyle on five of five sub axes by 0.2 to 0.8 points, with the largest margin at the food scene axis where the Casamia, the Paco Tapas, and the Wapping Wharf cluster lift the score above the Cardiff equivalent. Cardiff's 7.8 cultural density is solid off the Wales Millennium Centre at Cardiff Bay, the Sherman Theatre, the Chapter Arts Centre, and the National Museum Cardiff.
The Cardiff rugby economy and the Principality Stadium home internationals lift the live event density by structural measure, with 74,500 capacity on the Six Nations weekends drawing 1.2 million additional visitors annually. The foodies ranking places Bristol at number 28 in Europe and Cardiff at number 64.
The boring section that decides whether the move actually happens.
Visa difficulty is tied at 5 of 10. Both cities run the UK Skilled Worker visa at the 38,700 pound salary floor. Cardiff Airport (CWL) handles 1.2 million passengers a year on the 2025 read; Bristol Airport (BRS) handles 10.2 million on the same year, with the Cardiff to Heathrow rail route at 2 hours 5 minutes via Reading offering the international flight grid alternative.
Working language is English at both. Cardiff operates at the bilingual signage and the public service level under the Welsh Language Act 1993 and the Welsh Language Measure 2011, with 11.6 percent of the Cardiff resident population recording Welsh language skills at the 2021 Census. The bilingual upbringing through the Welsh medium primary school stack is a structural Cardiff feature.
Education. Cardiff runs the Welsh medium primary stack across Ysgol Glan Morfa, Ysgol Mynydd Bychan, and Ysgol Pwll Coch at zero direct cost, plus the international and the independent stack at 12,000 to 18,000 pounds a year across Cardiff Sixth Form College, Howell's School, and St John's College. Bristol runs the independent stack at 16,000 to 28,000 pounds a year across Clifton College, Bristol Grammar School, Queen Elizabeth's Hospital, and Badminton School.
Move logistics. Shipping container math from North America runs 5,400 to 8,200 dollars on a 20 foot to Avonmouth (Bristol) and 5,600 to 8,400 dollars to Cardiff Port via the M4. The pet relocation timeline is 30 days inside the UK Pet Travel Scheme.
For the aerospace professional at Airbus Filton or Rolls Royce, the engineering and tech roles at Dyson, Graphcore, or OVO Energy, the financial back office at Bank of America Merrill Lynch, or the household weighting the structural UK quality of life ranking at number 3 nationally, Bristol wins.
For the broadcast media professional at BBC Wales Drama Village or S4C, the civic and public administration roles at the Welsh Government or the Senedd, the bilingual upbringing through the Welsh medium primary stack, the rugby supporter at the Principality Stadium, or the household wanting the 380 dollar a month rent discount, Cardiff wins on the cost adjusted and the cultural identity axis.
For the comparison view across the same axis: Bristol vs London, Bristol vs Bath, Bristol vs Manchester, Cardiff vs Swansea, Cardiff vs Bath, Cardiff vs Newport. For the city profiles: Bristol, Cardiff, Swansea, Bath.
One reading note. The Bristol versus Cardiff comparison feeds the rankings on cheapest UK cities, quality of life, families, cities for engineering, and cities for young professionals. The numbers are refreshed quarterly against the May 2026 Numbeo, Mercer, ONS, and the South Wales and Avon and Somerset Police data drops.
For the deeper comparison set, the comparisons index tracks every two way matchup, and the relocation score tool returns a graded 1 to 100 fit score. The where should I live quiz and the cost converter handle the salary math.