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Old São Tomé Dobra (STD) to Belarusian Ruble (BYN)

Convert old São Tomé dobras to Belarusian rubles at the live mid-market rate. Reverse: BYN 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 BYN.

1 Old São Tomé Dobra =

0.0001381 BYN +0.41% today

1 STD = 0.0001381 BYN · 1 BYN = 7,241.18 STD

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

STD to BYN over the last year

0.000140.00016Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
0.00016224
52-week low
0.00012760
52-week average
0.00014030
Change over the year
−14.48%

Conversion tables

STD to BYN
STD BYN
1 STD 0.0001381 BYN
10 STD 0.001381 BYN
100 STD 0.01381 BYN
1,000 STD 0.1381 BYN
10,000 STD 1.38 BYN
50,000 STD 6.90 BYN
100,000 STD 13.81 BYN
BYN to STD
BYN STD
1 BYN 7,241.18 STD
10 BYN 72,411.78 STD
100 BYN 724,117.77 STD
1,000 BYN 7,241,177.68 STD
10,000 BYN 72,411,776.77 STD
50,000 BYN 362,058,883.86 STD
100,000 BYN 724,117,767.71 STD

Get STD→BYN rates via API

The live rate, the rate on any past day or a whole range, for BYN 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=BYN \
  -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=BYN \
  -d date=2025-10-04 \
  -H "apikey: YOUR-API-KEY"

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Questions about STD to BYN

How much is 1 STD in BYN?

1 Old São Tomé Dobra is 0.0001381 Belarusian rubles at the mid-market rate of 4 October 2026, 03:38 UTC, and 1 BYN is 7,241.18 STD.

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

Over the last 52 weeks 1 STD ranged from 0.0001276 to 0.00016224 BYN, 0.0001403 BYN on average.

Which exchange rate is this?

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