Cost pair · Numbeo 2026 · real USD
Porto is ~48% cheaper for a single person including rent: $1,666/month vs $3,221 in Seattle, WA (Numbeo 2026, ±15% band).
| Metric | Seattle, WA | Porto |
|---|---|---|
| Cost index (NYC=100) | 90.3 | 49.3 |
| Single, excl. rent | $1,499 | $819 |
| 1-bed outside centre | $1,722 | $847 |
| 1-bed city centre | $2,537 | $1,248 |
| Monthly total (single) | $3,221 | $1,666 |
| Family of 4, excl. rent | $5,565 | $3,038 |
| Groceries index | 98.0 | 46.5 |
| Restaurants index | 95.8 | 47.0 |
| Purchasing power index | 165.0 | 68.9 |
The single biggest line item is rent: a one-bed outside the centre costs $1,722 in Seattle, WA vs $847 in Porto — a $875/month gap on housing alone. Day-to-day prices follow the same direction: groceries index 98.0 vs 46.5, restaurants 95.8 vs 47.0 (NYC = 100).
The caveat is the last row. Seattle, WA's local purchasing power index is 165.0 vs 68.9 in Porto — if you keep a foreign income (remote work, retirement, savings), the 48% discount is real; if you plan to earn a local salary, weigh what local wages buy, not just what things cost.
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Pin Seattle, WA and Porto — sunshine, tax, cost, safety, air, and internet as deltas on one map.
Sources: Numbeo 2026 (12,743 cities, 9.8M prices) · OECD Purchasing Power Parities 2026 · GeoRank cities-tools dataset (CC-BY-4.0). Methodology and accuracy bounds at methodology.