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Icelandic Króna (ISK) to Old São Tomé Dobra (STD)

Convert Icelandic krónur to old São Tomé dobras at the live mid-market rate. Reverse: STD to ISK

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 ISK to STN.

1 Icelandic Króna =

179.37 STD −0.41% today

1 ISK = 179.366 STD · 1 STD = 0.00557518 ISK

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

ISK to STD over the last year

165.00170.00175.00180.00Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
180.67
52-week low
164.57
52-week average
171.61
Change over the year
+3.53%

Conversion tables

ISK to STD
ISK STD
1 ISK 179.37 STD
10 ISK 1,793.66 STD
100 ISK 17,936.64 STD
1,000 ISK 179,366.45 STD
10,000 ISK 1,793,664.48 STD
50,000 ISK 8,968,322.40 STD
100,000 ISK 17,936,644.81 STD
STD to ISK
STD ISK
1 STD 0.005575 ISK
10 STD 0.05575 ISK
100 STD 0.5575 ISK
1,000 STD 6 ISK
10,000 STD 56 ISK
50,000 STD 279 ISK
100,000 STD 558 ISK

Get ISK→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=ISK -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=ISK -d currencies=STD \
  -d date=2025-10-04 \
  -H "apikey: YOUR-API-KEY"

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Questions about ISK to STD

How much is 1 ISK in STD?

1 Icelandic Króna is 179.366 old São Tomé dobras at the mid-market rate of 4 October 2026, 03:38 UTC, and 1 STD is 0.00557518 ISK.

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

Over the last 52 weeks 1 ISK ranged from 164.57 to 180.672 STD, 171.611 STD on average.

Which exchange rate is this?

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