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  2. MRO to ERN
  3. 100,000 MRO

Convert 100,000 Old Mauritanian Ouguiya (MRO) to Eritrean Nakfa (ERN)

Convert old Mauritanian ouguiyas to Eritrean nakfas at the live mid-market rate. Reverse: ERN to MRO

The Old Mauritanian Ouguiya is no longer in use

Old Mauritanian Ouguiya (MRO) was replaced by the Mauritanian Ouguiya (MRU) in 2018. For today’s money, convert MRU to ERN.

100,000 old Mauritanian ouguiyas =

4,201.68 ERN 0.00% today

1 MRO = 0.0420168 ERN · 1 ERN = 23.80 MRO

Mid-market rate, updated 13:32 UTC. Paid plans update as often as every 60 seconds. Get MRO→ERN rates via API

MRO to ERN over the last year

0.0420.042020.04204Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
0.042017
52-week low
0.042017
52-week average
0.042017
Change over the year
0.00%

Conversion tables

MRO to ERN
MRO ERN
1 MRO 0.04202 ERN
10 MRO 0.4202 ERN
100 MRO 4.20 ERN
1,000 MRO 42.02 ERN
10,000 MRO 420.17 ERN
50,000 MRO 2,100.84 ERN
100,000 MRO 4,201.68 ERN
ERN to MRO
ERN MRO
1 ERN 23.80 MRO
10 ERN 238.00 MRO
100 ERN 2,380.00 MRO
1,000 ERN 23,799.99 MRO
10,000 ERN 237,999.89 MRO
50,000 ERN 1,189,999.43 MRO
100,000 ERN 2,379,998.85 MRO

Get MRO→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=MRO -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=MRO -d currencies=ERN \
  -d date=2025-10-04 \
  -H "apikey: YOUR-API-KEY"

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Questions about MRO to ERN

How much is 100,000 MRO in ERN?

100,000 old Mauritanian ouguiyas is 4,201.68 Eritrean nakfas at the mid-market rate of 4 October 2026, 13:32 UTC, when 1 MRO = 0.0420168 ERN.

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

Over the last 52 weeks 1 MRO ranged from 0.0420168 to 0.0420168 ERN, 0.0420168 ERN on average.

Which exchange rate is this?

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