Currency converter
BYR to MRU

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

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

Amount

From

1 Old Belarusian Ruble =

0.002038 MRU −0.42% today

1 BYR = 0.00203779 MRU · 1 MRU = 490.728 BYR

Mid-market rate, updated 05:26 UTC. Paid plans update as often as every 60 seconds. Get BYR→MRU rates via API

BYR to MRU over the last year

52-week high: 0.0020549
52-week low: 0.0011640
52-week average: 0.0015863
Change over the year: +72.64%

Conversion tables

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

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	24,536,418 BYR
100,000 MRU	49,072,837 BYR

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

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Questions about BYR to MRU

How much is 1 BYR in MRU?

1 Old Belarusian Ruble is 0.00203779 Mauritanian ouguiyas at the mid-market rate of 4 October 2026, 05:26 UTC, and 1 MRU is 490.728 BYR.

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

Over the last 52 weeks 1 BYR ranged from 0.00116397 to 0.00205494 MRU, 0.00158626 MRU on average.

Which exchange rate is this?

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