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Optimism (OP) to São Tomé and Príncipe Dobra (STN)

Convert Optimism to São Tomé and Príncipe dobras at the live mid-market rate. Reverse: STN to OP

1 Optimism =

2.92 STN −2.75% today

1 OP = 2.91659 STN · 1 STN = 0.342866 OP

Mid-market rate, updated 09:37 UTC. Paid plans update as often as every 60 seconds. Get OP→STN rates via API

OP to STN over the last year

5.0010.0015.00Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
15.9839
52-week low
1.7583
52-week average
4.2323
Change over the year
−80.78%

Conversion tables

OP to STN
OP STN
1 OP 2.92 STN
10 OP 29.17 STN
100 OP 291.66 STN
1,000 OP 2,916.59 STN
10,000 OP 29,165.94 STN
50,000 OP 145,829.68 STN
100,000 OP 291,659.36 STN
STN to OP
STN OP
1 STN 0.3429 OP
10 STN 3.42865727 OP
100 STN 34.28657270 OP
1,000 STN 342.86572700 OP
10,000 STN 3,428.65727000 OP
50,000 STN 17,143.28635000 OP
100,000 STN 34,286.57270000 OP

Get OP→STN rates via API

The live rate, the rate on any past day or a whole range, for STN and 170+ other currencies, as JSON. Free plan included. See the exchange rate API.

curl https://api.currencyapi.com/v3/latest \
  -G -d base_currency=OP -d currencies=STN \
  -H "apikey: YOUR-API-KEY"

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

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Questions about OP to STN

How much is 1 OP in STN?

1 Optimism is 2.91659 São Tomé and Príncipe dobras at the mid-market rate of 4 October 2026, 09:37 UTC, and 1 STN is 0.342866 OP.

What was the OP to STN rate over the last year?

Over the last 52 weeks 1 OP ranged from 1.75825 to 15.9839 STN, 4.23234 STN on average.

Which exchange rate is this?

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