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  2. MRU to BYR

Mauritanian Ouguiya (MRU) to Old Belarusian Ruble (BYR)

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

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 MRU to BYN.

1 Mauritanian Ouguiya =

491 BYR +0.42% today

1 MRU = 490.728 BYR · 1 BYR = 0.00203779 MRU

Mid-market rate, updated 06:23 UTC. Paid plans update as often as every 60 seconds. Get MRU→BYR rates via API

MRU to BYR over the last year

600.00800.00Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
859.13
52-week low
486.63
52-week average
659.97
Change over the year
−42.08%

Conversion tables

MRU to BYR
MRU BYR
1 MRU 491 BYR
10 MRU 4,907 BYR
100 MRU 49,073 BYR
1,000 MRU 490,728 BYR
10,000 MRU 4,907,284 BYR
50,000 MRU 24,536,419 BYR
100,000 MRU 49,072,839 BYR
BYR to MRU
BYR MRU
1 BYR 0.002038 MRU
10 BYR 0.02038 MRU
100 BYR 0.2038 MRU
1,000 BYR 2.04 MRU
10,000 BYR 20.38 MRU
50,000 BYR 101.89 MRU
100,000 BYR 203.78 MRU

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

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Questions about MRU to BYR

How much is 1 MRU in BYR?

1 Mauritanian Ouguiya is 490.728 old Belarusian rubles at the mid-market rate of 4 October 2026, 06:23 UTC, and 1 BYR is 0.00203779 MRU.

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

Over the last 52 weeks 1 MRU ranged from 486.632 to 859.13 BYR, 659.968 BYR on average.

Which exchange rate is this?

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