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Old São Tomé Dobra (STD) to Thai Baht (THB)

Convert old São Tomé dobras to Thai baht at the live mid-market rate. Reverse: THB to STD

The Old São Tomé Dobra is no longer in use

Old São Tomé Dobra (STD) was replaced by the São Tomé and Príncipe Dobra (STN) in 2018. For today’s money, convert STN to THB.

1 Old São Tomé Dobra =

0.001535 THB +0.41% today

1 STD = 0.00153464 THB · 1 THB = 651.62 STD

Mid-market rate, updated 03:38 UTC. Paid plans update as often as every 60 seconds. Get STD→THB rates via API

STD to THB over the last year

0.00150.00155Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
0.0015668
52-week low
0.0014704
52-week average
0.0015244
Change over the year
−0.57%

Conversion tables

STD to THB
STD THB
1 STD 0.001535 THB
10 STD 0.01535 THB
100 STD 0.1535 THB
1,000 STD 1.53 THB
10,000 STD 15.35 THB
50,000 STD 76.73 THB
100,000 STD 153.46 THB
THB to STD
THB STD
1 THB 651.62 STD
10 THB 6,516.20 STD
100 THB 65,161.97 STD
1,000 THB 651,619.67 STD
10,000 THB 6,516,196.71 STD
50,000 THB 32,580,983.54 STD
100,000 THB 65,161,967.09 STD

Get STD→THB rates via API

The live rate, the rate on any past day or a whole range, for THB 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=STD -d currencies=THB \
  -H "apikey: YOUR-API-KEY"

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

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Questions about STD to THB

How much is 1 STD in THB?

1 Old São Tomé Dobra is 0.00153464 Thai baht at the mid-market rate of 4 October 2026, 03:38 UTC, and 1 THB is 651.62 STD.

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

Over the last 52 weeks 1 STD ranged from 0.00147038 to 0.00156684 THB, 0.00152444 THB on average.

Which exchange rate is this?

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