1. Currency converter
  2. MRO to BYR
  3. 100 MRO

Convert 100 Old Mauritanian Ouguiya (MRO) to Old Belarusian Ruble (BYR)

Convert old Mauritanian ouguiyas to old Belarusian rubles at the live mid-market rate. Reverse: BYR 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 BYR.

The Old Belarusian Ruble is no longer in use

Old Belarusian Ruble (BYR) was replaced by the Belarusian Ruble (BYN) in 2016. For today’s money, convert MRO to BYN.

100 old Mauritanian ouguiyas =

5,490 BYR 0.00% today

1 MRO = 54.902 BYR · 1 BYR = 0.0182143 MRO

Mid-market rate, updated 08:43 UTC. Paid plans update as often as every 60 seconds. Get MRO→BYR rates via API

MRO to BYR over the last year

60.0080.00Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
95.664
52-week low
54.902
52-week average
73.843
Change over the year
−42.08%

Conversion tables

MRO to BYR
MRO BYR
1 MRO 55 BYR
10 MRO 549 BYR
100 MRO 5,490 BYR
1,000 MRO 54,902 BYR
10,000 MRO 549,020 BYR
50,000 MRO 2,745,099 BYR
100,000 MRO 5,490,199 BYR
BYR to MRO
BYR MRO
1 BYR 0.01821 MRO
10 BYR 0.1821 MRO
100 BYR 1.82 MRO
1,000 BYR 18.21 MRO
10,000 BYR 182.14 MRO
50,000 BYR 910.71 MRO
100,000 BYR 1,821.43 MRO

Get MRO→BYR rates via API

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

Related conversions

Popular Old Mauritanian Ouguiya conversions

Popular Old Belarusian Ruble conversions

Questions about MRO to BYR

How much is 100 MRO in BYR?

100 old Mauritanian ouguiyas is 5,490 old Belarusian rubles at the mid-market rate of 4 October 2026, 08:43 UTC, when 1 MRO = 54.902 BYR.

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

Over the last 52 weeks 1 MRO ranged from 54.902 to 95.664 BYR, 73.8433 BYR on average.

Which exchange rate is this?

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