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  2. THB to OP

Thai Baht (THB) to Optimism (OP)

Convert Thai baht to Optimism at the live mid-market rate. Reverse: OP to THB

1 Thai Baht =

0.2195 OP +0.61% today

1 THB = 0.219487 OP · 1 OP = 4.55607 THB

Mid-market rate, updated 05:52 UTC. Paid plans update as often as every 60 seconds. Get THB→OP rates via API

THB to OP over the last year

0.100.200.30Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
0.36742
52-week low
0.04064
52-week average
0.21118
Change over the year
+413.94%

Conversion tables

THB to OP
THB OP
1 THB 0.2195 OP
10 THB 2.19487422 OP
100 THB 21.94874222 OP
1,000 THB 219.48742220 OP
10,000 THB 2,194.87422200 OP
50,000 THB 10,974.37111000 OP
100,000 THB 21,948.74222000 OP
OP to THB
OP THB
1 OP 4.56 THB
10 OP 45.56 THB
100 OP 455.61 THB
1,000 OP 4,556.07 THB
10,000 OP 45,560.70 THB
50,000 OP 227,803.49 THB
100,000 OP 455,606.97 THB

Get THB→OP rates via API

The live rate, the rate on any past day or a whole range, for OP and 170+ other currencies, as JSON. Free plan included. See the exchange rate API.

Get a free API key API documentation 
curl https://api.currencyapi.com/v3/latest \
  -G -d base_currency=THB -d currencies=OP \
  -H "apikey: YOUR-API-KEY"

# the rate on a past day
curl https://api.currencyapi.com/v3/historical \
  -G -d base_currency=THB -d currencies=OP \
  -d date=2025-10-04 \
  -H "apikey: YOUR-API-KEY"

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Questions about THB to OP

How much is 1 THB in OP?

1 Thai Baht is 0.219487 Optimism at the mid-market rate of 4 October 2026, 05:52 UTC, and 1 OP is 4.55607 THB.

What was the THB to OP rate over the last year?

Over the last 52 weeks 1 THB ranged from 0.0406435 to 0.367419 OP, 0.211181 OP on average.

Which exchange rate is this?

The mid-market rate: the midpoint between what currency markets pay and ask for THB/OP, without the margin a bank or card issuer adds, so the rate you are charged is usually a little worse.