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  2. THB to OP
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Convert 1 Thai Baht (THB) to Optimism (OP)

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

1 Thai Baht =

0.2255 OP +3.39% today

1 THB = 0.225545 OP · 1 OP = 4.43371 THB

Mid-market rate, updated 11:40 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
0.21120
Change over the year
+428.12%

Conversion tables

THB to OP
THB OP
1 THB 0.2255 OP
10 THB 2.25544956 OP
100 THB 22.55449563 OP
1,000 THB 225.54495630 OP
10,000 THB 2,255.44956300 OP
50,000 THB 11,277.24781500 OP
100,000 THB 22,554.49563000 OP
OP to THB
OP THB
1 OP 4.43 THB
10 OP 44.34 THB
100 OP 443.37 THB
1,000 OP 4,433.71 THB
10,000 OP 44,337.06 THB
50,000 OP 221,685.29 THB
100,000 OP 443,370.59 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.

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 0.2255 Optimism at the mid-market rate of 4 October 2026, 11:40 UTC, when 1 THB = 0.225545 OP.

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, 0.211197 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.