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Convert 100,000 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.

100,000 old São Tomé dobras =

183.12 MRU +0.25% today

1 STD = 0.00183123 MRU · 1 MRU = 546.08 STD

Mid-market rate, updated 08:50 UTC. Paid plans update as often as every 60 seconds. Get STD→MRU rates via API

STD to MRU over the last year

0.001850.0019Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
0.0019339
52-week low
0.0018194
52-week average
0.0018793
Change over the year
−3.93%

Conversion tables

STD to MRU
STD MRU
1 STD 0.001831 MRU
10 STD 0.01831 MRU
100 STD 0.1831 MRU
1,000 STD 1.83 MRU
10,000 STD 18.31 MRU
50,000 STD 91.56 MRU
100,000 STD 183.12 MRU
MRU to STD
MRU STD
1 MRU 546.08 STD
10 MRU 5,460.80 STD
100 MRU 54,608.03 STD
1,000 MRU 546,080.33 STD
10,000 MRU 5,460,803.29 STD
50,000 MRU 27,304,016.44 STD
100,000 MRU 54,608,032.88 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 100,000 STD in MRU?

100,000 old São Tomé dobras is 183.12 Mauritanian ouguiyas at the mid-market rate of 4 October 2026, 08:50 UTC, when 1 STD = 0.00183123 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.