Convert 10 São Tomé and Príncipe Dobra (STN) to Optimism (OP)

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

Amount

From

10 São Tomé and Príncipe dobras =

3.44358052 OP +3.28% today

1 STN = 0.344358 OP · 1 OP = 2.90395 STN

Mid-market rate, updated 10:41 UTC. Paid plans update as often as every 60 seconds. Get STN→OP rates via API

STN to OP over the last year

52-week high: 0.56875
52-week low: 0.06256
52-week average: 0.32316
Change over the year: +422.44%

Conversion tables

STN to OP
STN	OP
1 STN	0.3444 OP
10 STN	3.44358052 OP
100 STN	34.43580515 OP
1,000 STN	344.35805150 OP
10,000 STN	3,443.58051500 OP
50,000 STN	17,217.90257500 OP
100,000 STN	34,435.80515000 OP

OP to STN
OP	STN
1 OP	2.90 STN
10 OP	29.04 STN
100 OP	290.40 STN
1,000 OP	2,903.95 STN
10,000 OP	29,039.54 STN
50,000 OP	145,197.71 STN
100,000 OP	290,395.42 STN

Get STN→OP rates via API

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

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

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Questions about STN to OP

How much is 10 STN in OP?

10 São Tomé and Príncipe dobras is 3.44358052 Optimism at the mid-market rate of 4 October 2026, 10:41 UTC, when 1 STN = 0.344358 OP.

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

Over the last 52 weeks 1 STN ranged from 0.0625628 to 0.568746 OP, 0.323164 OP on average.

Which exchange rate is this?

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