Convert 100,000 Arbitrum (ARB) to Old Mauritanian Ouguiya (MRO)

Convert Arbitrums to old Mauritanian ouguiyas at the live mid-market rate. Reverse: MRO to ARB

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 ARB to MRU.

Amount

From

100,000 Arbitrums =

7,245,332.35 MRO +0.54% today

1 ARB = 72.4533 MRO · 1 MRO = 0.013802 ARB

Mid-market rate, updated 04:22 UTC. Paid plans update as often as every 60 seconds. Get ARB→MRO rates via API

ARB to MRO over the last year

52-week high: 162.996
52-week low: 26.142
52-week average: 55.065
Change over the year: −53.26%

Conversion tables

ARB to MRO
ARB	MRO
1 ARB	72.45 MRO
10 ARB	724.53 MRO
100 ARB	7,245.33 MRO
1,000 ARB	72,453.32 MRO
10,000 ARB	724,533.23 MRO
50,000 ARB	3,622,666.17 MRO
100,000 ARB	7,245,332.35 MRO

MRO to ARB
MRO	ARB
1 MRO	0.0138 ARB
10 MRO	0.138 ARB
100 MRO	1.38019894 ARB
1,000 MRO	13.80198940 ARB
10,000 MRO	138.01989400 ARB
50,000 MRO	690.09947000 ARB
100,000 MRO	1,380.19894000 ARB

Get ARB→MRO rates via API

The live rate, the rate on any past day or a whole range, for MRO 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=ARB -d currencies=MRO \
  -H "apikey: YOUR-API-KEY"

# the rate on a past day
curl https://api.currencyapi.com/v3/historical \
  -G -d base_currency=ARB -d currencies=MRO \
  -d date=2025-10-04 \
  -H "apikey: YOUR-API-KEY"

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Questions about ARB to MRO

How much is 100,000 ARB in MRO?

100,000 Arbitrums is 7,245,332.35 old Mauritanian ouguiyas at the mid-market rate of 4 October 2026, 04:22 UTC, when 1 ARB = 72.4533 MRO.

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

Over the last 52 weeks 1 ARB ranged from 26.1416 to 162.996 MRO, 55.0653 MRO on average.

Which exchange rate is this?

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