Londonvs
SeattleLondon vs Seattle: cost, size & quality of life compared
Trying to decide between London and Seattle? Here's the honest bottom line first — then the full, sourced breakdown on cost of living, salary, safety and quality of life.
London and Seattle are almost dead even overall.
But the "winner" depends on what you care about. Here's who takes each dimension:
SeattleLondonSeattleSeattleComposite scores
Overall: Seattle wins by 0.1 points
Population & size
Is London bigger than Seattle?
London is the bigger city: about 9.0M people versus Seattle's 750k — roughly 12× larger.
City-proper / metro population estimates. Size is one input — scroll on for cost of living, salary equivalence and quality-of-life scoring.
Distance
How far is London from Seattle?
London is about 7,700 km (4,780 mi) from Seattle in a straight line — roughly 9 h 50 m of nonstop flight time.
Great-circle distance, not a routed itinerary; flight estimate assumes ~850 km/h cruise plus 45 minutes of taxi, climb and descent.
Climate
Is London warmer than Seattle?
London and Seattle have broadly similar temperatures across the year. Seattle gets noticeably more sun — about 570 more sunshine hours per year.
| Month | London | Seattle |
|---|---|---|
| January (high / low) | 8° / 2°C | 7° / 2°C |
| July (high / low) | 23° / 14°C | 24° / 14°C |
Famously gray and damp. Mild winters compared to continental peers, cool summers — heatwaves above 30°C still rare.
Oceanic. Famously gray and damp Oct-May, dry warm summers Jun-Sep. Year-round temperatures moderate; snow rare in the city itself.
London edges Seattle by just 0.1 points (5.1 vs 5.0), a margin so thin it reflects nearly identical livability fundamentals rather than a meaningful advantage.
Both cities cluster in the mid-5 range, suggesting they solve similar urban problems but neither dominates decisively against the other.
Don't use this razor-thin gap to choose between them; instead, weigh personal priorities like climate, cost of living, and job market fit, which matter far more than a 2% score difference.
Data signals
What separates London and Seattle
How decisive
Seattle comes out ahead by 0.1 composite points — essentially a tie.
Biggest difference
The widest gap is healthcare, where London leads by 3.1 points.
Where they match
They're most evenly matched on quality of life — within 0.3 points of each other.
Overall cost gap
Total monthly costs in Seattle run about 9% higher than in London.
Where budgets split most
Transport is the line item that diverges most: roughly 56% cheaper in Seattle than London.
Size difference
London is the larger metro — about 12.0× the population of the other, which shapes commute times, housing supply and how "big-city" daily life feels.
Home internet
Seattle has the faster typical broadband (300 vs 170 Mbps median) — worth weighing if you work remotely or move large files.
Score-by-score, side-by-side
Each axis is scored independently with disclosed weights and a calculation string.
The exact scores and winners:
| Axis | London | Seattle | Winner |
|---|---|---|---|
| Affordability | 0.0 | 1.0 | Seattle +1.0 |
| Quality of life | 6.4 | 6.7 | Seattle +0.3 |
| Remote-work friendliness | 5.0 | 7.2 | Seattle +2.2 |
| Healthcare | 8.3 | 5.2 | London +3.1 |
Each axis is a weighted aggregate of underlying indicators normalized to a 0–10 scale. Weights are explicit and disclosed per axis. The composite is the unweighted mean of the four axes — axes are not collapsed further because the underlying trade-offs (e.g. low cost vs poor air quality) are user-dependent.
Affordability
- Cost-of-living index (weight 60%)113
- Rent index (weight 40%)107
How this is calculated
Affordability = ((100 − costIndex)/100 × 0.6 + (100 − rentIndex)/100 × 0.4) × 10. For London: ((100 − 113)/100 × 0.6 + (100 − 107)/100 × 0.4) × 10 = 0.
London is among the more expensive cities tracked. Salary expectations should be calibrated to the high cost base before relocating.
Quality of life
- Safety index (weight 40%)60
- Healthcare index (weight 35%)75
- Air quality index (weight 25%)55
How this is calculated
QoL = (safety/100 × 0.4 + healthcare/100 × 0.35 + airQuality/100 × 0.25) × 10. For London: (60/100 × 0.4 + 75/100 × 0.35 + 55/100 × 0.25) × 10 = 6.4.
London has a mixed quality profile. Safety: good; healthcare: good; air: good. Weigh the weakest axis against your personal priorities.
Remote-work friendliness
- Internet (median Mbps) (weight 45%)170 Mbps
- Effective income tax (lower = better) (weight 30%)18.0%
- Cost-of-living (lower = better) (weight 25%)113
How this is calculated
RemoteWork = (min(Mbps/300, 1) × 0.45 + (1 − incomeTax) × 0.3 + (100 − costIndex)/100 × 0.25) × 10. For London: (min(170/300, 1) × 0.45 + (1 − 0.18) × 0.3 + (100 − 113)/100 × 0.25) × 10 = 5.
London works for remote work but isn't optimized for it: internet 170 Mbps, income tax 18%, cost index 113.
Healthcare
- Healthcare quality index (weight 70%)75
- Healthcare out-of-pocket / month (lower = better) (weight 30%)0
How this is calculated
Healthcare = (qualityIndex/100 × 0.7 + max(0, 1 − OOP/500) × 0.3) × 10. For London: (75/100 × 0.7 + max(0, 1 − 0/500) × 0.3) × 10 = 8.3.
London combines good system quality with a manageable out-of-pocket cost (~0 GBP/month). Travel insurance still recommended for non-residents.
Each axis is a weighted aggregate of underlying indicators normalized to a 0–10 scale. Weights are explicit and disclosed per axis. The composite is the unweighted mean of the four axes — axes are not collapsed further because the underlying trade-offs (e.g. low cost vs poor air quality) are user-dependent.
Affordability
- Cost-of-living index (weight 60%)92
- Rent index (weight 40%)88
How this is calculated
Affordability = ((100 − costIndex)/100 × 0.6 + (100 − rentIndex)/100 × 0.4) × 10. For Seattle: ((100 − 92)/100 × 0.6 + (100 − 88)/100 × 0.4) × 10 = 1.
Seattle is among the more expensive cities tracked. Salary expectations should be calibrated to the high cost base before relocating.
Quality of life
- Safety index (weight 40%)55
- Healthcare index (weight 35%)75
- Air quality index (weight 25%)75
How this is calculated
QoL = (safety/100 × 0.4 + healthcare/100 × 0.35 + airQuality/100 × 0.25) × 10. For Seattle: (55/100 × 0.4 + 75/100 × 0.35 + 75/100 × 0.25) × 10 = 6.7.
Seattle has a mixed quality profile. Safety: good; healthcare: good; air: good. Weigh the weakest axis against your personal priorities.
Remote-work friendliness
- Internet (median Mbps) (weight 45%)300 Mbps
- Effective income tax (lower = better) (weight 30%)17.0%
- Cost-of-living (lower = better) (weight 25%)92
How this is calculated
RemoteWork = (min(Mbps/300, 1) × 0.45 + (1 − incomeTax) × 0.3 + (100 − costIndex)/100 × 0.25) × 10. For Seattle: (min(300/300, 1) × 0.45 + (1 − 0.17) × 0.3 + (100 − 92)/100 × 0.25) × 10 = 7.2.
Seattle combines fast internet (300 Mbps median), a 17% effective income tax and cost index 92 — a strong configuration for remote workers earning in a stronger currency.
Healthcare
- Healthcare quality index (weight 70%)75
- Healthcare out-of-pocket / month (lower = better) (weight 30%)500
How this is calculated
Healthcare = (qualityIndex/100 × 0.7 + max(0, 1 − OOP/500) × 0.3) × 10. For Seattle: (75/100 × 0.7 + max(0, 1 − 500/500) × 0.3) × 10 = 5.2.
Seattle has trade-offs in healthcare: quality is good, typical out-of-pocket cost is ~500 USD/month. Cross-border insurance closes the gap.
Monthly cost delta: London vs Seattle
Normalized to GBP at 1 USD = 0.7870 GBP.
| Category | London | Seattle | Change |
|---|---|---|---|
| housing | £2,200 | $2,800 | +0% |
| food | £450 | $650 | +14% |
| transport | £180 | $100 | -56% |
| utilities | £220 | $200 | -28% |
| leisure | £500 | $650 | +2% |
| healthcare | £0 | $500 | +0% |
Where each city's money goes
Two cities can have the same monthly total but very different shapes — one might burn 50% on housing while the other splits more evenly. The composition matters as much as the headline.
The biggest shape difference is healthcare: Seattle spends 10.2 percentage points more of its budget on it (10% vs. 0%). If you're sensitive to that category, weight the per-axis scores accordingly.
Buying property
Apartment prices: London vs Seattle
Approximate asking prices in EUR per square meter (as of 2025-01), central vs mid-distance neighborhoods.
Buying in central Seattle runs about 21% cheaper per square meter (€9,500/m² vs €12,000/m²).
Midpoints of public listing ranges — a scoping number for rent-vs-buy thinking, not a valuation. Renting comparisons live in the cost table above.
Getting around
Public transport: London vs Seattle
Monthly pass and casual-ride pricing in EUR (as of 2025-01) plus the modes each network runs.
Travelcard zones 1-2 ≈ £170/mo; Oyster pay-as-you-go with daily caps is usually cheaper than the monthly for most commute patterns.
Day pass: €8.5 · Modes: Metro, Tram, Bus, Commuter rail, Ferry, Light rail
ORCA pass; Link light rail spine plus extensive ferries — Seattle has the largest ferry system in the US.
Single ride: €2.7 · Modes: Light rail, Tram, Bus, Ferry, Commuter rail
Salary equivalence: London ↔ Seattle
What earning the same purchasing power costs in each city. Cost-adjusted using the local cost-of-living index (London = 113, Seattle = 92); currency-converted at 1 USD = 0.7870 GBP. Tax differences are not modeled.
| London gross | Seattle equivalent |
|---|---|
| £40,000 | $41,378 |
| £75,000 | $77,585 |
| £120,000 | $124,135 |
| Seattle gross | London equivalent |
|---|---|
| $40,000 | £38,667 |
| $75,000 | £72,502 |
| $120,000 | £116,002 |
Equivalence here means same cost-of-living purchasing power, not same net take-home. Effective tax rates differ between countries; a salary equivalent on cost can still net more or less depending on the destination's tax regime. Use the calculator for tax-adjusted figures at a specific lifestyle tier.
Pros and cons
Why pick London
- Wins on healthcare (+3.1 points vs Seattle).
Why pick Seattle
- Wins on affordability (+1.0 points vs London).
- Wins on quality of life (+0.3 points vs London).
- Wins on remote-work friendliness (+2.2 points vs London).
London trade-offs
- Trails Seattle on affordability by 1.0 points.
- Trails Seattle on remote-work friendliness by 2.2 points.
Seattle trade-offs
- Trails London on healthcare by 3.1 points.
Remote work logistics
Time zones and language: London vs Seattle
London (Europe/London) and Seattle (America/Los_Angeles) sit 8 hours apart in standard time. A 9-to-5 in one overlaps the other's for 0 hours a day — fully asynchronous collaboration.
Official: English · English: Native-equivalent · Local language: Not needed
English-native. Multicultural enough that other languages are common in specific neighborhoods but English is the universal default for everything.
Official: English · English: Native-equivalent · Local language: Not needed
English-native. Diverse with significant Mandarin, Vietnamese, Spanish communities; English universal for all daily life and work.
Who should choose which
The composite winner doesn't always match what matters to you. These four reader profiles weigh the axes differently — find the closest fit.
Single, salaried remote worker, 25-40, optimizing for runway + bandwidth.
Axes scored: affordability, remoteWork
Couple with school-age children, prioritizing safety, healthcare, and air quality.
Axes scored: qualityOfLife, healthcare
Fixed income, healthcare-sensitive, prefers low cost and stable infrastructure.
Axes scored: healthcare, qualityOfLife, affordability
Salary stretch matters most. Cuts everything else if it lowers the burn rate.
Axes scored: affordability
Profiles use simple axis averaging — for a deeper read with your own weights, use the per-axis breakdown above.
Zoom out from cities to countries: compare United Kingdom vs United States on average wage, take-home after tax and cost of living.
Going deeper
Visa landscape for both countries — and case studies that touch this corridor.
Tools that work for either choice
Some links below are affiliate links — if you sign up we may earn a small commission, at no extra cost to you.
How this page is calculated
Data sources
- Mundevo per-city dataset. Cost basket, rent index, safety, healthcare, air quality and median internet for both cities. Reference date: 2026-05-23 (London) and 2026-05-28 (Seattle).
- FX rate. 1 USD = 0.7870 GBP, used to normalize cost baskets.
- CityScoreCalculator. Four axes (Affordability, Quality of life, Remote work, Healthcare) computed with explicit weights and explanations. See per-axis calculation strings rendered on this page.
- ComparisonService. Per-category cost deltas (housing, food, transport, utilities, leisure, healthcare) normalized to the origin currency.
Update cadence
Data as of . Last reviewed .
Calculation
For each of the four axes we compute an independent 0–10 score using the formulas printed beside each axis. The composite is the unweighted mean of the four axes. The overall winner is the city with the higher composite, unless the margin is under 0.05 points — in which case London is shown first as a tiebreaker to keep results stable.
Limitations
- Climate is not scored — we don't yet hold a maintained climate dataset, so weather-driven preferences are not modeled.
- Tax differences between cities in the same country are not modeled (Spain and Germany don't have material regional differences for this dataset).
- Indices are population-level. Personal cost varies with neighborhood, employer benefits and family status.
- Quality-of-life axis weights (safety 0.4 / healthcare 0.35 / air 0.25) are editorial defaults — readers with strong preferences should re-weight manually.
Frequently asked questions
London vs Seattle: which is cheaper?
London is roughly 9% cheaper than Seattle on the monthly cost basket (housing, food, transport, utilities, healthcare). London has cost index 113 vs Seattle at 92 (both with New York = 100).
Which city has better quality of life?
London scores 4.9/10 on the Mundevo composite versus Seattle at 5.0/10. The composite weights safety (40%), healthcare (35%) and air quality (25%). Seattle wins overall by 0.1 points.
Is London or Seattle better for remote work?
London has 170 Mbps median internet vs Seattle at 300 Mbps. The four-axis decision rubric on this page (affordability, quality of life, remote work, healthcare) gives a per-dimension breakdown rather than a single answer.
Is London bigger than Seattle?
London is larger — about 9.0M people versus Seattle's 750k, roughly 12.0× the size.
Is London safer than Seattle?
London scores higher on safety — 60 vs 55 / 100 on the Mundevo safety index (crime and personal-security signals).
Should I move to London or Seattle?
It depends on what you weight. Seattle wins the overall Mundevo composite by 0.1 points, but London is cheaper, and the two split differently across affordability, quality of life, remote work and healthcare. Use the per-axis table and the reader-profile section above to match the verdict to your own priorities.