Convert 1 Polish Zloty (PLN) to Old São Tomé Dobra (STD)

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

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 PLN to STN.

Amount

From

1 Polish Zloty =

5,600.84 STD −0.67% today

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

Mid-market rate, updated 07:52 UTC. Paid plans update as often as every 60 seconds. Get PLN→STD rates via API

PLN to STD over the last year

52-week high: 5,915.46
52-week low: 5,600.84
52-week average: 5,793.38
Change over the year: −3.17%

Conversion tables

PLN to STD
PLN	STD
1 PLN	5,600.84 STD
10 PLN	56,008.39 STD
100 PLN	560,083.91 STD
1,000 PLN	5,600,839.11 STD
10,000 PLN	56,008,391.09 STD
50,000 PLN	280,041,955.47 STD
100,000 PLN	560,083,910.93 STD

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

Get PLN→STD rates via API

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

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

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Questions about PLN to STD

How much is 1 PLN in STD?

1 Polish Zloty is 5,600.84 old São Tomé dobras at the mid-market rate of 4 October 2026, 07:52 UTC, when 1 PLN = 5,600.84 STD.

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

Over the last 52 weeks 1 PLN ranged from 5,600.84 to 5,915.46 STD, 5,793.38 STD on average.

Which exchange rate is this?

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