🙂Monthly costs for one person with rent: $904 in Chang-hua versus $2,848 in Boulogne-Billancourt.
🙂Estimated couple costs with rent: $1,361 in Chang-hua versus $4,173 in Boulogne-Billancourt.
🙂Monthly costs for a family of three with rent: $1,819 in Chang-hua versus $5,497 in Boulogne-Billancourt.
🙂Living in Chang-hua costs roughly 68% less than in Boulogne-Billancourt, driven mainly by Eating Out.
📊The two cities straddle the global median: Chang-hua is 33% below, Boulogne-Billancourt is 113% above.
Currency
🍽 Eating Out
Chang-hua
Boulogne-Billancourt
Difference
Meal at Budget Restaurant
$3.76NT$118
$17.02€14.64
-77.91%
Three-Course Dinner for Two, Mid-Range
$27.15NT$855
$71.2€61.2
-61.86%
Fast Food Meal(McDonalds, etc)
$5.64NT$178
$13.81€11.88
-59.16%
Cappuccino
$1.84NT$57.8
$4.71€4.06
-60.93%
Coke/Pepsi/Fanta/Sprite(0.33 liter bottle)
$0.88NT$27.63
$4.12€3.54
-78.64%
Water(0.33 liter bottle)
$0.46NT$14.54
$3.26€2.80
-85.89%
Local Beer(0.5 liter draught)
$1.45NT$45.62
$8.24€7.09
-82.40%
Imported Beer(0.33 liter bottle)
$1.98NT$62.3
$5.91€5.08
-66.50%
🛒 Groceries & Markets
Chang-hua
Boulogne-Billancourt
Difference
Milk(1 liter)
$2.76NT$86.9
$1.39€1.20
98.56%
White Bread(500g)
$1.91NT$60.1
$2.04€1.75
-6.37%
Rice(white)(1kg)
$3.17NT$99.9
$2.88€2.47
10.07%
Eggs
$2.91NT$91.7
$3.44€2.96
-15.41%
Local Cheese(1kg)
$17.14NT$540
$21.63€18.60
-20.76%
Chicken Fillets(1kg)
$7.81NT$246
$12.39€10.66
-36.97%
Beef Round Steak(1kg)
$20.15NT$634
$23.88€20.54
-15.62%
Apples(1kg)
$5.22NT$164
$3.41€2.94
53.08%
Banana(1kg)
$2.89NT$91.1
$2.30€1.98
25.65%
Oranges(1kg)
$2.75NT$86.7
$2.69€2.31
2.23%
Tomato(1kg)
$3.23NT$102
$3.63€3.12
-11.02%
Potato(1kg)
$2.75NT$86.5
$2.72€2.34
1.10%
Onion(1kg)
$2.19NT$69.0
$2.96€2.54
-26.01%
Lettuce(1 head)
$1.87NT$59.0
$1.81€1.56
3.31%
Water(1.5 liter bottle)
$0.81NT$25.47
$0.66€0.57
22.73%
Cigarettes 20 Pack(Marlboro, Camel)
$3.95NT$124
$13.63€11.72
-71.02%
Wine(Bottle)
$9.61NT$302
$9.19€7.90
4.57%
Local Beer(0.5 liter bottle)
$1.56NT$49.26
$2.73€2.35
-42.86%
Imported Beer(0.33 liter bottle)
$2.41NT$75.8
$3.74€3.22
-35.56%
🚌 Getting Around
Chang-hua
Boulogne-Billancourt
Difference
One-way Ticket(Public Transport)
$1.72NT$54.0
$2.46€2.11
-30.08%
Public Transport Monthly Pass(Regular Price)
$37.34NT$1,175
$49.73€42.78
-24.91%
Taxi Start(Normal Tariff)
$2.95NT$93.0
$4.67€4.02
-36.83%
Taxi(Normal Tariff)(1km)
$0.78NT$24.68
$1.70€1.46
-54.12%
Taxi 1hour Waiting(Normal Tariff)
$10.29NT$324
$54.5€46.89
-81.12%
Gasoline(1 liter)
$1.02NT$32.18
$2.17€1.87
-53.00%
Midsize Hatchback 1.4l(Volkswagen Golf, Toyota Prius, Honda Civic, etc)
$38.6KNT$1.2M
$35.8K€30.8K
7.81%
Compact Sedan 1.6l(Toyota Corolla, Mazda3, Kia K4, Hyundai Elantra, etc)
$27.5KNT$864.1K
$35.8K€30.8K
-23.27%
🧾 Monthly Utilities & Internet
Chang-hua
Boulogne-Billancourt
Difference
Utilities for 2 People in 2-bedroom Apartment(Heating, Electricity, Gas, Water, Garbage)(85m2)
$34.13NT$1,074
$253€217
-86.49%
SIM Card Monthly Plan(Calls and 10GB+ Data)
$18.70NT$589
$23.29€20.03
-19.71%
Internet(50+ Mbps, Unlimited Data)
$20.26NT$638
$35.73€30.73
-43.30%
🎉 Sport & Entertainment
Chang-hua
Boulogne-Billancourt
Difference
Gym Membership(Monthly)
$26.09NT$821
$64.6€55.6
-59.62%
Tennis Court(1 Hour on Weekend)
$15.35NT$483
$18.41€15.83
-16.62%
Cinema Ticket
$10.07NT$317
$15.81€13.60
-36.31%
🧸 Childcare & Education
Chang-hua
Boulogne-Billancourt
Difference
Preschool or Kindergarten, Full Day, Private, 1 Child(Monthly)
$643NT$20.2K
$863€743
-25.51%
International Primary School, 1 Child(Yearly)
$8,353NT$262.9K
$8,662€7,451
-3.57%
👕👟 Clothing & Footwear
Chang-hua
Boulogne-Billancourt
Difference
Jeans(Levis 501 Or Similar)
$53.8NT$1,692
$94.0€80.9
-42.82%
Summer Dress(H&M, Zara, etc)
$16.87NT$531
$48.23€41.49
-65.02%
Sport Shoes(Adidas, Nike)
$84.1NT$2,647
$98.5€84.7
-14.62%
Men's Leather Business Shoes
$53.8NT$1,692
$158€136
-66.05%
🏠 Accommodation & Living
Chang-hua
Boulogne-Billancourt
Difference
1-bedroom Apartment, City Center(Monthly)
$312NT$9,829
$1,354€1,165
-76.94%
1-bedroom Apartment, Outside City Center(Monthly)
$190NT$5,974
$1,446€1,244
-86.87%
3-bedroom Apartment, City Center(Monthly)
$546NT$17.2K
$2,742€2,359
-80.07%
3-bedroom Apartment, Outside City Center(Monthly)
$189NT$5,953
$2,440€2,099
-92.25%
Buy Apartment in City Center(m2)
$3,014NT$94.9K
$4,109€3,534
-26.64%
Buy Apartment Outside City Center(m2)
$1,682NT$52.9K
$3,193€2,746
-47.32%
💵 Salaries & Financials
Chang-hua
Boulogne-Billancourt
Difference
Average Monthly Net Salary(After Tax)
$2,015NT$63.4K
$4,411€3,795
-54.33%
20-Year Fixed Mortgage Interest Rate(Annual %)
2.19
3.62
-39.50%
CityCost data is based on AI and user input – minor inaccuracies may occur.
Last update for Chang-hua: May 30, 2026
Last update for Boulogne-Billancourt: May 30, 2026
Cost Breakdown
🏠A one-bedroom apartment in the center runs $312 in Chang-hua and $1,354 in Boulogne-Billancourt. Housing cost is often the main lever when comparing two cities.
💰Boulogne-Billancourt pays 119% more on average. The extra income cushions the higher costs, though housing choices and lifestyle decide how much of the gap is truly closed.
🛒Dining out: $27.00 in Chang-hua vs $71.0 in Boulogne-Billancourt for a mid-range dinner for two. Groceries echo the gap at $354 vs $387 per month, with Chang-hua cheaper across the board.
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
Chang-hua vs Boulogne-Billancourt: Cost of Living - Frequently Asked Questions
Is Boulogne-Billancourt cheaper than Chang-hua?
Chang-hua is cheaper overall, especially in Groceries & Markets, Clothing & Footwear, Eating Out, Getting Around, Sport & Entertainment. The 215% gap adds up to real monthly savings that compound significantly over time.
Where can you earn more: Chang-hua or Boulogne-Billancourt?
On paper, Boulogne-Billancourt earns 119% less. That's worth factoring in alongside costs, though remote workers earning in a stronger currency may not notice the difference at all.
What is the rent difference between Chang-hua and Boulogne-Billancourt?
Rent for a central apartment: $312 in Chang-hua versus $1,354 in Boulogne-Billancourt. Housing is usually the single largest factor when comparing overall living costs between the two.
Which city has cheaper kindergarten?
Childcare runs $643 in Chang-hua versus $863 in Boulogne-Billancourt. Over years of preschool, even a modest monthly gap compounds into a major financial factor for families.
How do food prices compare in Chang-hua and Boulogne-Billancourt?
Supermarket bills run roughly 9% higher in Boulogne-Billancourt. For households that cook at home regularly, that difference adds up over a month.
Is $1,000 a realistic budget for Chang-hua or Boulogne-Billancourt?
At $904 in Chang-hua versus $2,848 in Boulogne-Billancourt, a $1,000 budget is realistic in Chang-hua but tight or insufficient in Boulogne-Billancourt. The gap between the two cities makes Chang-hua the clear choice for anyone on this budget.
Is it better to live in Chang-hua or Boulogne-Billancourt?
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.
Which city is safer, Chang-hua or Boulogne-Billancourt?
Safety-wise, Chang-hua and Boulogne-Billancourt are on par. Petty crime is typical for cities this size, and most residents feel comfortable going about their daily routines in either place.
Which city is easier to live in as a foreigner?
Expats usually find Chang-hua gentler on the wallet – expenses run 215% less than in Boulogne-Billancourt. Beyond cost, consider language, visa policies, and how big the international community is in each city.