Last update: Oct 2026

Cost of Living Comparison Between Castries and Buenos Aires

For one person, living is cheaper in Castries: $1,413 a month against $1,685 in Buenos Aires, rent and utilities included – about $3,300 less a year. Higher rent and utilities in Buenos Aires outweigh lower spending on other living expenses.

70

Cost of Living Index in Castries
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Castries Living Index
81

Cost of Living Index in Buenos Aires
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Buenos Aires Living Index

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Castries

🇱🇨 Saint Lucia

$1,413

/mo nomad

Buenos Aires

🇦🇷 Argentina

$1,685

/mo nomad

Monthly Cost of Living

How much you'll spend in Castries and in Buenos Aires

Real prices from locals and on-the-ground checks – rent, groceries, transit and the daily extras. Here's what a month in Castries and in Buenos Aires actually costs, broken down by who's living it.

Monthly costs for one person with rent: $1,413 in Castries versus $1,685 in Buenos Aires.

Castries $1,413
Buenos Aires $1,685

Estimated couple costs with rent: $2,371 in Castries versus $2,742 in Buenos Aires.

Castries $2,371
Buenos Aires $2,742

Monthly costs for a family of three with rent: $3,330 in Castries versus $3,799 in Buenos Aires.

Castries $3,330
Buenos Aires $3,799

Living in Castries costs roughly 16% less than in Buenos Aires, and outside of rent the biggest gap is in groceries.

Both cities are pricier than the global median: Castries 5% above, Buenos Aires 26% above.

Meal at Budget Restaurant

$9.42 EC$25.43

$18.73 ARS 28.4K

-49.71%

Three-Course Dinner for Two, Mid-Range

$74.5 EC$201

$64.5 ARS 97.8K

15.51%

Fast Food Meal (McDonalds, etc)

$8.41 EC$22.72

$12.88 ARS 19.5K

-34.70%

Cappuccino

$3.67 EC$9.90

$3.98 ARS 6,029

-7.79%

Coke/Pepsi/Fanta/Sprite (0.33 liter bottle)

$1.97 EC$5.31

$2.05 ARS 3,103

-3.90%

Water (0.33 liter bottle)

$1.01 EC$2.73

$1.55 ARS 2,349

-34.84%

Local Beer (0.5 liter draught)

$2.86 EC$7.72

$3.84 ARS 5,830

-25.52%

Imported Beer (0.33 liter bottle)

$3.28 EC$8.86

$4.60 ARS 6,970

-28.70%

Milk (1 liter)

$2.02 EC$5.46

$1.44 ARS 2,181

40.28%

White Bread (500g)

$1.85 EC$4.99

$2.46 ARS 3,738

-24.80%

Rice (white) (1kg)

$1.72 EC$4.65

$1.63 ARS 2,467

5.52%

Eggs

$4.51 EC$12.19

$2.89 ARS 4,385

56.06%

Local Cheese (1kg)

$11.29 EC$30.47

$10.65 ARS 16.1K

6.01%

Chicken Fillets (1kg)

$9.08 EC$24.51

$10.00 ARS 15.2K

-9.20%

Beef Round Steak (1kg)

$14.92 EC$40.29

$13.74 ARS 20.8K

8.59%

Apples (1kg)

$8.61 EC$23.25

$2.75 ARS 4,166

213.09%

Banana (1kg)

$1.62 EC$4.38

$2.18 ARS 3,300

-25.69%

Oranges (1kg)

$8.09 EC$21.84

$1.45 ARS 2,205

457.93%

Tomato (1kg)

$14.83 EC$40.04

$1.99 ARS 3,013

645.23%

Potato (1kg)

$3.50 EC$9.44

$1.24 ARS 1,885

182.26%

Onion (1kg)

$2.06 EC$5.56

$1.27 ARS 1,921

62.20%

Lettuce (1 head)

$2.20 EC$5.94

$1.70 ARS 2,575

29.41%

Water (1.5 liter bottle)

$1.28 EC$3.46

$1.73 ARS 2,617

-26.01%

Cigarettes 20 Pack (Marlboro, Camel)

$9.35 EC$25.25

$4.18 ARS 6,337

123.68%

Wine (Bottle)

$10.95 EC$29.57

$5.80 ARS 8,790

88.79%

Local Beer (0.5 liter bottle)

$2.31 EC$6.23

$2.09 ARS 3,163

10.53%

Imported Beer (0.33 liter bottle)

$5.70 EC$15.38

$2.77 ARS 4,198

105.78%

One-way Ticket (Public Transport)

$1.08 EC$2.91

$0.75 ARS 1,132

44.00%

Public Transport Monthly Pass (Regular Price)

$27.15 ARS 41.2K

Taxi Start (Normal Tariff)

$9.49 EC$25.63

$1.62 ARS 2,451

485.80%

Taxi (Normal Tariff) (1km)

$0.98 ARS 1,481

Taxi 1hour Waiting (Normal Tariff)

$7.72 ARS 11.7K

Gasoline (1 liter)

$1.52 EC$4.11

$1.36 ARS 2,058

11.76%

Midsize Hatchback 1.4l (Volkswagen Golf, Toyota Prius, Honda Civic, etc)

$26.3K EC$70.9K

$28.0K ARS 42.5M

-6.21%

Compact Sedan 1.6l (Toyota Corolla, Mazda3, Kia K4, Hyundai Elantra, etc)

$36.5K EC$98.6K

$34.5K ARS 52.4M

5.71%

Utilities for 2 People in 2-bedroom Apartment (Heating, Electricity, Gas, Water, Garbage) (85m2)

$124 EC$334

$216 ARS 326.9K

-42.58%

SIM Card Monthly Plan (Calls and 10GB+ Data)

$89.6 EC$242

$25.61 ARS 38.8K

249.90%

Internet (50+ Mbps, Unlimited Data)

$47.85 EC$129

$31.36 ARS 47.6K

52.58%

Gym Membership (Monthly)

$42.35 EC$114

$49.82 ARS 75.6K

-14.99%

Tennis Court (1 Hour on Weekend)

$17.06 ARS 25.9K

Cinema Ticket

$5.68 EC$15.33

$10.43 ARS 15.8K

-45.54%

Preschool or Kindergarten, Full Day, Private, 1 Child (Monthly)

$211 EC$570

$466 ARS 706.7K

-54.71%

International Primary School, 1 Child (Yearly)

$9,057 ARS 13.7M

Jeans (Levis 501 Or Similar)

$83.9 EC$226

$122 ARS 185.2K

-31.32%

Summer Dress (H&M, Zara, etc)

$50.2 EC$135

$97.4 ARS 147.8K

-48.53%

Sport Shoes (Adidas, Nike)

$111 EC$299

$117 ARS 177.4K

-5.25%

Men's Leather Business Shoes

$111 EC$299

$140 ARS 211.9K

-20.80%

1-bedroom Apartment, City Center (Monthly)

$450 EC$1,216

$763 ARS 1.2M

-41.00%

1-bedroom Apartment, Outside City Center (Monthly)

$340 EC$918

$505 ARS 766.1K

-32.70%

3-bedroom Apartment, City Center (Monthly)

$1,184 EC$3,195

$1,598 ARS 2.4M

-25.96%

3-bedroom Apartment, Outside City Center (Monthly)

$708 EC$1,912

$1,185 ARS 1.8M

-40.23%

Buy Apartment in City Center (m2)

$101 EC$273

$2,678 ARS 4.1M

-96.22%

Buy Apartment Outside City Center (m2)

$63.4 EC$171

$1,858 ARS 2.8M

-96.59%

Average Monthly Net Salary (After Tax)

$1,122 EC$3,028

$954 ARS 1.4M

17.51%

20-Year Fixed Mortgage Interest Rate (Annual %)

7.75

57.25

-86.46%

CityCost data is based on AI and user input – minor inaccuracies may occur.

Last update for Castries: October 4, 2026

Last update for Buenos Aires: October 6, 2026

Monthly budget structure

Share of the monthly basket for one person, rent included.

Groceries & Markets

Castries

$431 30%

Buenos Aires

$284 17.1% 34% $147

Accommodation & Living

Castries

$340 23.7%

Buenos Aires

$505 30.4% 48.6% $165

Monthly Utilities & Internet

Castries

$261 18.2%

Buenos Aires

$273 16.4% 4.3% $11

Eating Out

Castries

$177 12.4%

Buenos Aires

$279 16.8% 57.3% $102

Clothing & Footwear

Castries

$160 11.1%

Buenos Aires

$214 12.9% 34% $54

Sport & Entertainment

Castries

$54 3.7%

Buenos Aires

$71 4.3% 31.6% $17

Getting Around

Castries

$14 * 1%

Buenos Aires

$37 2.2% 165% $23

Categories marked with * are only partly priced – their share counts the items that do have prices.

Cost Breakdown

A one-bedroom apartment in the center runs $450 in Castries and $763 in Buenos Aires. Housing cost is often the main lever when comparing two cities.

Castries pays 18% more on average while also being the cheaper of the two. The combined effect is a noticeably stronger local purchasing power.

Dining out: $74.0 in Castries vs $64.0 in Buenos Aires for a mid-range dinner for two. Groceries echo the gap at $431 vs $284 per month, with Buenos Aires cheaper across the board.

Good to know

🇱🇨 Castries

🇦🇷 Buenos Aires

🕒 Local time

01:07 1:07 AM

02:07 2:07 AM

1 h ahead of Castries

🌤 Weather

👥 Population

22,000 Capital

2,891,082 Capital

💱 Currency

East Caribbean Dollar XCD $

Argentine Peso ARS $

📈 Exchange rate

1 XCD = 0.37 USD

1 XCD = 0.33 EUR

10,000 ARS = 6.59 USD

10,000 ARS = 5.88 EUR

Exchange rates and currency converter

ARS, USD, EUR to XCD – East Caribbean Dollar Converter

🇺🇸 United States Dollar ($)

🌐 East Caribbean Dollar ($)

East Caribbean Dollar exchange rates as of October 10, 2026: 1 USD = 2.7 XCD (1 XCD = 0.37 USD). 1 EUR = 3.03 XCD (1 XCD = 0.33 EUR).

Argentine Peso exchange rates as of October 10, 2026: 1 USD = 1,517 ARS (10,000 ARS = 6.59 USD). 1 EUR = 1,701 ARS (10,000 ARS = 5.88 EUR).

USD to XCD in detail →

On the map

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Between locations

Castries Buenos Aires 5,410 km ≈ 7 h nonstop flight

From you

Castries
Buenos Aires

Distances are measured in a straight line. Your location is detected approximately.

City Median Internet Speeds Comparison (Updated April 2026)

The chart highlights the Precision Threshold for mobile and fixed broadband internet speeds, updated quarterly.

Digital Nomad Cost of Living Index

Castries vs Buenos Aires: Cost of Living - Frequently Asked Questions

Castries and Buenos Aires differ by about 19% in total monthly costs ($1,413 vs $1,685 including rent). Castries is meaningfully more affordable – a gap that matters a lot on a fixed or modest income.

Average pay runs 18% higher in Castries, which matters when comparing affordability. Whether that higher income actually nets you more depends on your spending habits and housing choices.

Rent for a central apartment: $450 in Castries versus $763 in Buenos Aires. Housing is usually the single largest factor when comparing overall living costs between the two.

Childcare runs $211 in Castries versus $466 in Buenos Aires. Over years of preschool, even a modest monthly gap compounds into a major financial factor for families.

Dining out is cheaper in Castries – a meal for two runs $74.0 versus $64.0 in Buenos Aires. If you eat out regularly, this makes a real dent in your monthly spending.

At $1,413 in Castries versus $1,685 in Buenos Aires, a $1,000 budget is realistic in Castries but tight or insufficient in Buenos Aires. The gap between the two cities makes Castries the clear choice for anyone on this budget.

Both cities offer a good standard of living with different trade-offs. Neither is objectively better – the right pick depends on what matters most: affordability, career, cultural scene, or climate.

Safety-wise, Castries and Buenos Aires are on par. Petty crime is typical for cities this size, and most residents feel comfortable going about their daily routines in either place.

Expats usually find Castries gentler on the wallet – expenses run 19% less than in Buenos Aires. Beyond cost, consider language, visa policies, and how big the international community is in each city.