Convert 1 Old São Tomé Dobra (STD) to Arbitrum (ARB)

Convert old São Tomé dobras to Arbitrums at the live mid-market rate. Reverse: ARB 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 ARB.

Amount

From

1 Old São Tomé Dobra =

0.0002284 ARB +1.23% today

1 STD = 0.00022839 ARB · 1 ARB = 4,378.41 STD

Mid-market rate, updated 12:45 UTC. Paid plans update as often as every 60 seconds. Get STD→ARB rates via API

STD to ARB over the last year

52-week high: 0.00064376
52-week low: 0.00010382
52-week average: 0.00037442
Change over the year: +107.79%

Conversion tables

STD to ARB
STD	ARB
1 STD	0.0002284 ARB
10 STD	0.002284 ARB
100 STD	0.02284 ARB
1,000 STD	0.2284 ARB
10,000 STD	2.28393200 ARB
50,000 STD	11.41966000 ARB
100,000 STD	22.83932000 ARB

ARB to STD
ARB	STD
1 ARB	4,378.41 STD
10 ARB	43,784.15 STD
100 ARB	437,841.47 STD
1,000 ARB	4,378,414.73 STD
10,000 ARB	43,784,147.27 STD
50,000 ARB	218,920,736.34 STD
100,000 ARB	437,841,472.67 STD

Get STD→ARB rates via API

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

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Questions about STD to ARB

How much is 1 STD in ARB?

1 Old São Tomé Dobra is 0.0002284 Arbitrums at the mid-market rate of 4 October 2026, 12:45 UTC, when 1 STD = 0.00022839 ARB.

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

Over the last 52 weeks 1 STD ranged from 0.00010382 to 0.00064376 ARB, 0.00037442 ARB on average.

Which exchange rate is this?

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