How to Calculate Salary Cost-of-Living Comparison
What is Salary Cost-of-Living Comparison?
Cost-of-living adjustments make salaries in different cities comparable. A $100,000 salary in Manhattan and $70,000 in Memphis may provide identical purchasing power if Manhattan's COL index is ~143 vs Memphis's ~100.
Formula
Equivalent salary = Annual salary / Hours worked per year | Hourly rate = Annual salary / 2080 (for 40-hr week)
- S
- Annual Salary ($)
- H
- Hours Worked (hours/year)
- r
- Hourly Rate ($/hour)
Step-by-Step Guide
- 1Adjusted income = Salary ÷ COL Index × 100
- 2Equivalent salary = Adjusted income × New city COL ÷ 100
- 3COL Index 100 = US national average
- 4NYC ≈ 187, San Francisco ≈ 194, Houston ≈ 93, Memphis ≈ 83
Worked Examples
Input
$80,000 in Chicago (COL 107) vs Seattle (COL 150)
Result
Chicago adjusted: $74,766. Equivalent Seattle salary needed: $112,149.
Frequently Asked Questions
Should I compare salary or total compensation?
Always compare total compensation: salary + benefits (health insurance, 401k match, PTO, stock options). Benefits can add 20–40% to true value.
How do I account for cost of living differences?
Use cost-of-living calculators or databases (Numbeo, MIT Living Wage). A $100k salary in San Francisco ≠ $100k in a lower-cost area.
What about remote vs office work?
Remote roles often pay less but save commute time and cost. Calculate true hourly rate including commute hours and expenses.
Ready to calculate? Try the free Salary Cost-of-Living Comparison Calculator
Try it yourself →