Cost of Living Comparison Calculator
Calculate the salary you'd need in a new city to match your current purchasing power. Use this when evaluating a job offer or relocation to ensure you won't take a hidden pay cut.
About this calculator
The formula is: Equivalent Salary = (currentSalary × (newCostIndex / currentCostIndex)) × (1 + taxDifference / 100) × lifestyleChange. The core adjustment, currentSalary × (newCostIndex / currentCostIndex), scales your salary proportionally to how much more or less expensive the new city is relative to your current one using published cost-of-living indices. The tax difference term (1 + taxDifference / 100) then adds or subtracts the net impact of moving to a state or country with different income tax rates — for example, moving from California to Texas might yield a ~9% effective tax reduction. Finally, multiplying by the lifestyle change factor allows you to model a deliberate upgrade or downgrade in spending habits (1.0 = same lifestyle, 1.15 = 15% lifestyle upgrade). The result is the annual salary that would leave you equally well-off financially in the new location.
How to use
You earn $80,000 in a city with a cost index of 100. A new job is in a city with a cost index of 125. The new state has 5% higher taxes (taxDifference = 5), and you want the same lifestyle (lifestyleChange = 1.0). Step 1: Cost-adjusted salary = $80,000 × (125 / 100) = $100,000. Step 2: Tax adjustment = $100,000 × (1 + 0.05) = $105,000. Step 3: Lifestyle factor = $105,000 × 1.0 = $105,000. You'd need a $105,000 offer to maintain your current standard of living — anything less is effectively a pay cut.
Frequently asked questions
How do cost of living indices work and where do I get accurate data?
Cost-of-living indices measure the relative price of a standardized basket of goods and services — housing, food, transport, healthcare — across cities, with one city or a national average set as the baseline (typically 100). Indices above 100 mean the city is more expensive than the baseline; below 100 means cheaper. Reliable sources include Numbeo, the C2ER ACCRA Cost of Living Index, NerdWallet's city comparison tool, and the MIT Living Wage Calculator. Always use indices from the same source for consistency.
Why does the tax rate difference matter when comparing salaries between cities?
Income tax rates vary dramatically between US states — from 0% in Texas, Florida, and Nevada to over 13% in California. If you earn $100,000 and move from a no-income-tax state to one with a 7% rate, you lose $7,000 per year in take-home pay even before accounting for cost-of-living differences. The tax difference field in this calculator lets you quantify that hidden cost so you can negotiate a fully informed salary offer rather than being surprised at tax time.
What lifestyle change multiplier should I use if I want to upgrade my standard of living after moving?
A lifestyleChange value of 1.0 means you want identical purchasing power in the new city. Use 1.10 if you'd like a modest 10% lifestyle upgrade — perhaps a larger apartment or more dining out. Use 0.90 if you're willing to downsize slightly in exchange for other benefits like proximity to family or a lower-stress environment. This multiplier is multiplicative with the cost and tax adjustments, so a 1.20 lifestyle upgrade in an already 30% more expensive city compounds to a very large required salary increase.