Eight days into this series, we’ve built a forensic picture of how the pound’s purchasing power in Thailand and Southeast Asia has eroded over twenty years. The Beer Index. The Pad Thai Index. The Coffee Index. The Taxi Index. The Rent Index. The Haircut Index. The Massage Index.
Each one tells a piece of the story. But the story only really lands when you put them all together in the way ordinary Brits actually spend money. A day at a time. A meal at a time. A holiday at a time.
So today we run the experiment. £100, in your pocket, walking out of your Bangkok hotel. Once in 2005. Once in 2026.
What does each note buy?
Setting the scene: the FX backdrop
In 2005, the pound bought roughly 72 baht. That was the peak. The pound had been strong against Asian currencies through the late 1990s and the early 2000s, and Thailand was still recovering from the 1997 Asian financial crisis. Sterling was a giant in Bangkok.
In 2026, the pound buys roughly 43 baht. That’s a 40% drop in baht-buying power over twenty years.
So your £100 in 2005 became 7,200 baht. Your £100 in 2026 becomes about 4,300 baht. You start the day with 40% less local currency, before you’ve spent a single thing.
Then Thai inflation does its work on what you can buy with that smaller pile.
The 2005 day in Bangkok with £100
Let’s run a normal tourist or short-stay expat day, hour by hour, with 2005 prices.
Morning (7,200 baht to spend)
You wake up in a clean mid-range hotel in Sukhumvit. Air-con, breakfast buffet, pool, decent location. Cost: 1,200 baht.
Hotel breakfast included. Coffee on the way out from a roadside vendor, 20 baht. A bottle of water for the day, 10 baht.
Cost so far: 1,230 baht. Running total: 5,970 baht remaining.
Midday
You take a tuk-tuk from Sukhumvit to Wat Pho. 80 baht after a bit of haggling. Temple entrance: free (in 2005, even foreigners often paid no fee).
Pad thai from a street stall near the temple: 25 baht. A fresh coconut water: 20 baht. A bottle of Singha: 35 baht (because it’s hot).
Walk to Khao San Road, stop for a foot massage: 200 baht for the hour.
Taxi back to Sukhumvit: 90 baht on the meter.
Cost so far: 1,230 + 80 + 25 + 20 + 35 + 200 + 90 = 1,680 baht. Running total: 5,520 baht remaining.
Afternoon
Back at the hotel pool. Beer from the fridge: 50 baht. A second beer because it’s still hot: 50 baht. A late lunch (Thai stir-fry) from the hotel’s poolside menu: 180 baht.
You decide to get a proper Thai massage at a shop opposite the hotel. 200 baht for the hour.
Cost so far: 1,680 + 50 + 50 + 180 + 200 = 2,160 baht. Running total: 5,040 baht remaining.
Evening
Pre-dinner Chang on Soi 11. 80 baht (it’s a bar, not a 7-Eleven). One more, 80 baht.
Dinner at a popular mid-range Thai restaurant. Tom yum kung, pad krapow, two more beers, mango sticky rice for dessert. 600 baht for the two of you (you’ve brought a friend along).
Taxi to a rooftop bar. 70 baht. Two cocktails each. 200 baht per cocktail at the rooftop. 800 baht.
Taxi home. 80 baht.
Cost so far: 2,160 + 80 + 80 + 600 + 70 + 800 + 80 = 1,710 baht.
Total for the day: 3,870 baht. About £53.75 in 2005 terms.
You had a full day. Hotel. Three meals. Several beers. Two massages. Multiple taxis. A rooftop night out with cocktails. And you still have 3,330 baht (£46.25) left in your pocket.
That’s a full second day on the same budget.
The 2026 day in Bangkok with £100
Now the same day, twenty years later. £100 becomes 4,300 baht.
Morning (4,300 baht to spend)
The same mid-range Sukhumvit hotel, same level. Now 2,800 baht. Hotel breakfast included.
Coffee on the way out, but the roadside Nescafé vendor is gone. There’s a specialty café next door. Flat white: 160 baht. Bottled water: 25 baht.
Cost so far: 2,800 + 160 + 25 = 2,985 baht. Running total: 1,315 baht remaining.
You’ve spent 70% of your budget on hotel and breakfast coffee. It’s 9am.
Midday
Tuk-tuks are still around, but they’re tourist-priced now. Sukhumvit to Wat Pho: 250 baht negotiated, sometimes 300. Temple entrance for foreigners: 200 baht. Pad thai from a street stall near the temple (the same stall, run by the same family): 80 baht. Coconut water from the stall next door: 70 baht.
Cost so far: 2,985 + 250 + 200 + 80 + 70 = 3,585 baht. Running total: 715 baht remaining.
You’ve now spent 83% of your day’s budget and it’s 1pm. You haven’t had a beer yet. You haven’t had a massage. You haven’t had lunch.
The 2025-2026 reality kicks in. You can’t actually do the rest of the 2005 day on this budget. You’ve effectively run out by mid-afternoon, and you’ve done less than a third of the 2005 itinerary.
If you tried to continue:
- Foot massage at Khao San: 350 baht (you no longer have it)
- Taxi back: 200 baht (you no longer have it)
- Hotel pool beer × 2: 280 baht (you no longer have it)
- Hotel lunch: 450 baht (definitely no)
- Thai massage at the shop opposite: 400 baht (no chance)
To do the rest of the 2005 day in 2026 (excluding the rooftop and dinner), you’d need roughly another 1,680 baht. You have 715. You’re 965 baht short.
For the full evening (mid-range dinner for two, taxis, rooftop cocktails), add another 2,500 baht. Total 2026 budget for the same day: roughly 7,800 baht. That’s £181 in today’s money.
The 20-year inflation, line by line
Let’s pull this apart. Same items, 2005 vs 2026, both in baht and in sterling.
| Item | 2005 (baht) | 2026 (baht) | 2005 (£) | 2026 (£) | Sterling multiplier |
|---|---|---|---|---|---|
| Mid-range Sukhumvit hotel | 1,200 | 2,800 | £16.67 | £65.12 | 3.9x |
| Roadside coffee/flat white | 20 | 160 | £0.28 | £3.72 | 13.3x |
| Bottle of water | 10 | 25 | £0.14 | £0.58 | 4.1x |
| Tuk-tuk Sukhumvit-Wat Pho | 80 | 250 | £1.11 | £5.81 | 5.2x |
| Wat Pho entrance (foreigner) | 0 | 200 | £0.00 | £4.65 | new fee |
| Pad thai street stall | 25 | 80 | £0.35 | £1.86 | 5.3x |
| Foot massage (1 hour) | 200 | 350 | £2.78 | £8.14 | 2.9x |
| Beer in a Thai bar | 80 | 180 | £1.11 | £4.19 | 3.8x |
| Mid-range Thai dinner for 2 | 600 | 1,400 | £8.33 | £32.56 | 3.9x |
| Rooftop cocktail | 200 | 550 | £2.78 | £12.79 | 4.6x |
| Hotel pool beer | 50 | 140 | £0.69 | £3.26 | 4.7x |
| Standard taxi journey | 80 | 200 | £1.11 | £4.65 | 4.2x |
| Thai massage (1 hour) | 200 | 350 | £2.78 | £8.14 | 2.9x |
The average sterling multiplier across this basket: roughly 5x.
That’s the all-in number for a normal British day in Bangkok. It costs you five times more in sterling, in 2026, to do what £100 used to do in 2005.
What this £100 buys you in 2005 vs 2026: the summary
2005, £100 in Bangkok: a hotel night, three full meals out, six beers, two massages, multiple taxis, a temple visit, a rooftop night with cocktails, change in your pocket for the next morning. A full day for two people, with budget left over.
2026, £100 in Bangkok: a hotel night, breakfast coffee, one cab ride, lunch from a street stall, and you’re out of money by 1pm. You’re paying for everything else on a separate card.
The structural breakdown of what changed
Three forces have eroded the pound’s Bangkok purchasing power. Each is responsible for roughly a third of the total damage.
One: Thai inflation on the goods themselves. Pad thai went from 25 baht to 80 baht. Beer went from 80 baht to 180 baht. Hotel rooms went from 1,200 to 2,800 baht. In baht terms, prices have roughly doubled to tripled over twenty years. This is normal Thai economic development: rising wages, rising input costs, rising property values.
Two: the pound’s collapse against the baht. £1 used to be 72 baht. Now it’s 43 baht. That’s a 40% reduction in baht-buying power purely from FX, before any prices changed. This is the bit British retirees and expats often blame on Brexit, but it’s actually a longer story. The pound has been weakening against most Asian currencies for fifteen years, and Thailand’s structural current-account surplus has made the baht one of the strongest currencies in the region.
Three: tourist pricing has stratified. In 2005, foreign tourists paid roughly the same prices as locals. By 2026, dual pricing is structural at temples, increasingly common at tourist-area restaurants and massage shops, and embedded in the taxi/tuk-tuk negotiation culture. A foreigner in Bangkok in 2026 systematically pays 30-50% more than a Thai for the same product or service, especially in tourist zones. This wasn’t true in 2005.
Multiply those three together (roughly 2.5x baht inflation × 1.67x FX drag × 1.3x tourist premium) and you get the 5x sterling multiplier we see across the basket.
What this means for British retirement
The mental model of “Thailand is cheap” was forged in the 2000s. It was true then. It was extravagantly true.
It’s still true now, but in a different way. Thailand is no longer “five times cheaper than the UK.” It’s roughly two to three times cheaper, depending on the line item. That’s still a meaningful saving for a retiree on a UK pension. But it’s not the life-changing arbitrage it used to be.
Concrete: a UK pensioner on £1,400/month moving to Thailand can rent a modern condo for £500, eat well on £400, and have £500/month for everything else. They live comfortably. They don’t live like royalty. Twenty years ago the same pension (in real terms) would have rented them a better condo, fed them more lavishly, and left them with twice as much disposable income.
The dream is still alive. It’s just smaller than it used to be. Anyone planning a Thai retirement based on holiday memories from 2005-2015 is going to be disappointed when they actually move.
The Vietnam parallel
Look at Hanoi today. A mid-range Hanoi hotel is £40. A coffee is £2. A pad thai equivalent (phở) is £1.55. A taxi is £0.46/km. A massage is £6. A flat is £352/month.
This is what Bangkok looked like in 2005-2010. Vietnam in 2026 is on the same trajectory Thailand was on twenty years ago: cheap, developing fast, attracting expats, with prices starting to climb.
If you’d put £100 down in Hanoi today and run the same day, you’d get the 2005-Bangkok experience back. Hotel night, three meals, several drinks, a massage, taxis, and change. The full day for two people, with money left over.
The “good old days” of cheap Asia haven’t gone. They’ve just moved 1,000 miles east. And the window will close. Vietnam in 2046 will likely be Thailand in 2026: still cheap, no longer extraordinary.
If you want the 2005-Bangkok experience for the rest of your life, you’ve got maybe ten years left to lock it in. And it’ll be in Vietnam, not Thailand.
The takeaway
The £100 of 2005 was a different currency to the £100 of 2026.
In 2005, it bought you the freedom of a full day in Bangkok, with change. In 2026, it gets you breakfast and a cab.
The five-times multiplier across the basket is the cleanest measurement we have of what twenty years of FX drift, Thai inflation, and structural tourist pricing has done to British buying power.
Three things follow from this.
One: if you’re a British retiree planning a move based on memories from a 2005-2015 holiday, recalibrate. The country is still cheap. Just not as cheap as you remember.
Two: if you’re sitting on sterling savings hoping for a return to the old days, it isn’t coming. The trend is structural, not cyclical. The pound has been weakening against Asian currencies for two decades and there’s nothing on the horizon that reverses it.
Three: if you want the 2005-Thailand experience back, look at Vietnam, Cambodia, or parts of the Philippines. The geographic centre of “cheap Southeast Asia” has shifted. The old centre, Thailand, has joined the global middle-income consumer economy. The new centre is to the east.
Mine’s a 2026 day with £100 in Hanoi. Hotel, two meals, three coffees, a beer, two taxis, and a 60-minute Thai massage at a Vietnamese spa. Money left over. Like the old days.
The pound still has power. You just need to spend it where the calendar is fifteen years behind.
