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Convert 10 Old São Tomé Dobra (STD) to Polish Zloty (PLN)

Convert old São Tomé dobras to Polish zlotys at the live mid-market rate. Reverse: PLN 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 PLN.

10 old São Tomé dobras =

0.001785 PLN +0.67% today

1 STD = 0.00017854 PLN · 1 PLN = 5,600.84 STD

Mid-market rate, updated 10:25 UTC. Paid plans update as often as every 60 seconds. Get STD→PLN rates via API

STD to PLN over the last year

0.000170.000175Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
0.00017854
52-week low
0.00016905
52-week average
0.00017263
Change over the year
+3.27%

Conversion tables

STD to PLN
STD PLN
1 STD 0.0001785 PLN
10 STD 0.001785 PLN
100 STD 0.01785 PLN
1,000 STD 0.1785 PLN
10,000 STD 1.79 PLN
50,000 STD 8.93 PLN
100,000 STD 17.85 PLN
PLN to STD
PLN STD
1 PLN 5,600.84 STD
10 PLN 56,008.39 STD
100 PLN 560,083.94 STD
1,000 PLN 5,600,839.38 STD
10,000 PLN 56,008,393.78 STD
50,000 PLN 280,041,968.88 STD
100,000 PLN 560,083,937.77 STD

Get STD→PLN rates via API

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

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Questions about STD to PLN

How much is 10 STD in PLN?

10 old São Tomé dobras is 0.001785 Polish zlotys at the mid-market rate of 4 October 2026, 10:25 UTC, when 1 STD = 0.00017854 PLN.

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

Over the last 52 weeks 1 STD ranged from 0.00016905 to 0.00017854 PLN, 0.00017263 PLN on average.

Which exchange rate is this?

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