Mumbai vs Chennai Cost of Living Comparison
Executive summary: Chennai leads on CPI (16.8 vs 20.1, NYC=100), Chennai leads on rent index, and Chennai leads on purchasing power. Validate neighbourhood rents before relocating — city-wide winners can reverse at district scale.
Overall Cost Winner
Chennai
Lower overall CPI; largest measurable gaps: Salary (512% gap, Chennai ahead); Utilities (68% gap, Chennai ahead).
Monthly Cost Difference
Estimated monthly housing+utilities+internet basket is about $446 lower in Chennai than in Mumbai (~63% gap; converted via exchange rates).
Estimated monthly difference: $446 (favoring Chennai).
Category Winners
| Category | Winner | Note |
|---|---|---|
| Overall CPI | Chennai | CPI 16.8 vs 20.1 (lower is better) |
| Housing | Chennai | Rent index 6.8 vs 10.5 (lower is better) |
| Food | Chennai | Groceries index 21 vs 24.2 (lower is better) |
| Transport | Mumbai | One-way ticket 20 vs 32.69 (lower is better) |
| Utilities | Chennai | Utilities (85m²) 1135.6 vs 3500 (lower is better) |
| Internet | Mumbai | Internet 800 vs 1052.1 (lower is better) |
| Restaurants | Chennai | Restaurant index 15.5 vs 18.5 (lower is better) |
| Salary | Chennai | Avg net salary 336505 vs 55000 (higher is better) |
| Purchasing Power | Chennai | PP index 65 vs 55 (higher is better) |
Biggest Difference
Salary: Chennai leads with a 512% gap.
Avg net salary 336505 vs 55000 (higher is better)
Quick Decision
- Students: Chennai — Lower housing / rent index (35% gap).
- Families: Chennai — Housing is typically the largest household line; rent index favors Chennai; purchasing power favors Chennai.
- Remote Workers: Chennai — Everyday cost index (CPI) favors Chennai (~16% gap).
- Budget Living: Chennai — Lowest overall consumer-price index in this pair.
Key Takeaways
- Chennai is the overall cost winner on CPI (~16% lower everyday-cost index than Mumbai).
- Housing: Chennai leads on rent index (35% gap).
- Food / groceries: Chennai is lower (13% gap).
- Purchasing power: Chennai scores higher (18% gap).
- Largest category gap: Salary (512%), favoring Chennai.
- Sample monthly basket (1BR + utilities + internet) is ~$446 cheaper in Chennai.
Analysis
Detailed breakdown uses only paired indices: CPI 20.1/16.8, rent 10.5/6.8, purchasing power 55/65. Category winners can diverge — a city may win rent while losing CPI. No GDP, climate, or industry claims are invented for either city.
Trust & data transparency
Last updated: 2026-08-11
Data Sources
This page uses CityCost index inputs. Platform sources (see also Data sources):
- Real
- Real
On-page labels for this view: Real · Real.
Methodology
Each indexed city is associated with a reference basket of common living costs (for example rent, groceries samples, transport tickets, utilities, restaurant meals, and net salary where available). From those items, the platform derives relative indices such as CPI, rent, groceries, restaurants, and local purchasing power, using New York City = 100 as the familiar baseline convention for relative comparison.