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Old São Tomé Dobra (STD) to Saudi Riyal (SAR)

Convert old São Tomé dobras to Saudi riyals at the live mid-market rate. Reverse: SAR 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 SAR.

1 Old São Tomé Dobra =

0.0001721 SAR +0.67% today

1 STD = 0.00017214 SAR · 1 SAR = 5,809.24 STD

Mid-market rate, updated 06:47 UTC. Paid plans update as often as every 60 seconds. Get STD→SAR rates via API

STD to SAR over the last year

0.000170.0001750.00018Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
0.00018167
52-week low
0.00017045
52-week average
0.00017651
Change over the year
−3.82%

Conversion tables

STD to SAR
STD SAR
1 STD 0.0001721 SAR
10 STD 0.001721 SAR
100 STD 0.01721 SAR
1,000 STD 0.1721 SAR
10,000 STD 1.72 SAR
50,000 STD 8.61 SAR
100,000 STD 17.21 SAR
SAR to STD
SAR STD
1 SAR 5,809.24 STD
10 SAR 58,092.39 STD
100 SAR 580,923.91 STD
1,000 SAR 5,809,239.11 STD
10,000 SAR 58,092,391.06 STD
50,000 SAR 290,461,955.31 STD
100,000 SAR 580,923,910.63 STD

Get STD→SAR rates via API

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

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Questions about STD to SAR

How much is 1 STD in SAR?

1 Old São Tomé Dobra is 0.00017214 Saudi riyals at the mid-market rate of 4 October 2026, 06:47 UTC, and 1 SAR is 5,809.24 STD.

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

Over the last 52 weeks 1 STD ranged from 0.00017045 to 0.00018167 SAR, 0.00017651 SAR on average.

Which exchange rate is this?

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