Moving from San Diego to Koh Samui (2026)
Koh Samui has a COL index of 50 vs 148 for San Diego (100 = US average). You'd pay about 66% less for the same lifestyle.
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Key differences
Salary needed in Koh Samui to match your San Diego lifestyle
Based on the 66% cost of living decrease between the two cities.
| Your salary in San Diego | Equivalent in Koh Samui |
|---|---|
| $40K | $13,514 |
| $50K | $16,892 |
| $60K | $20,270 |
| $75K | $25,338 |
| $80K | $27,027 |
| $100K | $33,784 |
| $120K | $40,541 |
| $150K | $50,676 |
Adjust your salary
Monthly budget at $75K — San Diego vs Koh Samui
| Expense | San Diego | Koh Samui |
|---|---|---|
| Monthly take-home | $4,159 | $4,741 |
| 1BR rent | $2,600 | $620 |
| Groceries | $414 | $380 |
| Transport | $100 | $150 |
| Utilities | $130 | $70 |
| Internet | $65 | $28 |
| Left after essentials | $850 | $3,493 |
30-Year Wealth Builder
If you invest your monthly savings of $2,061 in a low-cost index fund (7% avg return), you'd accumulate an extra:
over 30 years compared to staying in San Diego — that's the real price of a city.
Frequently asked questions
Is Koh Samui cheaper than San Diego?
Yes. Koh Samui has a cost of living index of 50 vs 148 for San Diego (100 = US average). That's about 66% cheaper.
How much will I save moving from San Diego to Koh Samui?
On a $75K salary, moving from San Diego to Koh Samui saves roughly $2,561/month on core expenses. That's ~$30,732/year.
What salary do I need in Koh Samui to match my San Diego lifestyle?
To maintain the same purchasing power as $75,000 in San Diego, you'd need roughly $25,338/year in Koh Samui. This is based on the overall COL index difference.
Estimates based on Q1 2026 COL index and market data. Budget uses simplified federal/state tax rates. Zillow · BLS · Numbeo · For general guidance only