Convert 1 Old São Tomé Dobra (STD) to Mauritanian Ouguiya (MRU)

Convert old São Tomé dobras to Mauritanian ouguiyas at the live mid-market rate. Reverse: MRU 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 MRU.

Amount

From

1 Old São Tomé Dobra =

0.001832 MRU +0.30% today

1 STD = 0.00183214 MRU · 1 MRU = 545.809 STD

Mid-market rate, updated 12:25 UTC. Paid plans update as often as every 60 seconds. Get STD→MRU rates via API

STD to MRU over the last year

52-week high: 0.0019339
52-week low: 0.0018194
52-week average: 0.0018793
Change over the year: −3.89%

Conversion tables

STD to MRU
STD	MRU
1 STD	0.001832 MRU
10 STD	0.01832 MRU
100 STD	0.1832 MRU
1,000 STD	1.83 MRU
10,000 STD	18.32 MRU
50,000 STD	91.61 MRU
100,000 STD	183.21 MRU

MRU to STD
MRU	STD
1 MRU	545.81 STD
10 MRU	5,458.09 STD
100 MRU	54,580.87 STD
1,000 MRU	545,808.72 STD
10,000 MRU	5,458,087.21 STD
50,000 MRU	27,290,436.04 STD
100,000 MRU	54,580,872.08 STD

Get STD→MRU rates via API

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

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Questions about STD to MRU

How much is 1 STD in MRU?

1 Old São Tomé Dobra is 0.001832 Mauritanian ouguiyas at the mid-market rate of 4 October 2026, 12:25 UTC, when 1 STD = 0.00183214 MRU.

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

Over the last 52 weeks 1 STD ranged from 0.00181942 to 0.00193388 MRU, 0.00187932 MRU on average.

Which exchange rate is this?

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