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Old São Tomé Dobra (STD) to Eritrean Nakfa (ERN)

Convert old São Tomé dobras to Eritrean nakfas at the live mid-market rate. Reverse: ERN 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 ERN.

1 Old São Tomé Dobra =

0.0006873 ERN +0.61% today

1 STD = 0.00068733 ERN · 1 ERN = 1,454.91 STD

Mid-market rate, updated 14:00 UTC. Paid plans update as often as every 60 seconds. Get STD→ERN rates via API

STD to ERN over the last year

0.000680.00070.00072Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
0.00072653
52-week low
0.00068097
52-week average
0.00070554
Change over the year
−3.98%

Conversion tables

STD to ERN
STD ERN
1 STD 0.0006873 ERN
10 STD 0.006873 ERN
100 STD 0.06873 ERN
1,000 STD 0.6873 ERN
10,000 STD 6.87 ERN
50,000 STD 34.37 ERN
100,000 STD 68.73 ERN
ERN to STD
ERN STD
1 ERN 1,454.91 STD
10 ERN 14,549.11 STD
100 ERN 145,491.10 STD
1,000 ERN 1,454,910.98 STD
10,000 ERN 14,549,109.83 STD
50,000 ERN 72,745,549.15 STD
100,000 ERN 145,491,098.31 STD

Get STD→ERN rates via API

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

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Questions about STD to ERN

How much is 1 STD in ERN?

1 Old São Tomé Dobra is 0.00068733 Eritrean nakfas at the mid-market rate of 4 October 2026, 14:00 UTC, and 1 ERN is 1,454.91 STD.

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

Over the last 52 weeks 1 STD ranged from 0.00068097 to 0.00072653 ERN, 0.00070554 ERN on average.

Which exchange rate is this?

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