A $95,000 salary offer in San Francisco vs. a $70,000 offer in Raleigh. Which is actually better? Once you account for cost of living, the $70,000 in Raleigh may leave you with more disposable income than the $95,000 in San Francisco — sometimes significantly more. Cost of living comparison is one of the most important and most neglected calculations in major career decisions.

The Cost of Living Index

Cost of living indices compare the overall price level of a city against a baseline (usually the US average at 100). A city with an index of 140 is 40% more expensive than average. An index of 85 is 15% cheaper than average.

The Formula

Equivalent Salary Needed = Current Salary × (New City Index / Current City Index)

Example: You earn $75,000 in Nashville (index ~111). You are offered a job in New York City (index ~187).

Equivalent salary needed in NYC = $75,000 × (187/111) = $126,351. The NYC offer needs to be at least $126K just to maintain your current standard of living.

What Cost of Living Indices Measure

Major indices (Numbeo, C2ER, NerdWallet) typically weight: housing (largest component, often 30–40%), groceries, healthcare, transportation, utilities, and miscellaneous goods and services. Housing is the dominant driver — a move from a rural area to a major coastal city can double housing costs while other categories change modestly.

Beyond the Index: What It Misses

• State income tax: Moving from Texas to California on the same salary costs roughly 9.3%+ more in state taxes alone
• Property tax: New Jersey’s 2.2%+ average vs. Hawaii’s 0.3% are dramatically different for homeowners
• Commute costs: A long commute in a car-dependent city adds $3,000–$8,000/year in real costs
• Lifestyle adjustments: Cities with lower COL often have different entertainment, dining, and social scene options

The Remote Work Opportunity

Remote workers earning big-city salaries while living in lower-cost areas effectively receive a pay increase without a raise. A $120,000 remote salary in a city with index 90 versus index 180 effectively doubles purchasing power. This is one of the most significant financial opportunities available to knowledge workers today.