Convert 100 Mauritanian Ouguiya (MRU) to Old Sierra Leonean Leone (SLL)

Convert Mauritanian ouguiyas to old Sierra Leonean leones at the live mid-market rate. Reverse: SLL to MRU

The Old Sierra Leonean Leone is no longer in use

Old Sierra Leonean Leone (SLL) was replaced by the Sierra Leonean Leone (SLE) in 2022. For today’s money, convert MRU to SLE.

Amount

From

100 Mauritanian ouguiyas =

57,517.80 SLL +0.37% today

1 MRU = 575.178 SLL · 1 SLL = 0.00173859 MRU

Mid-market rate, updated 12:31 UTC. Paid plans update as often as every 60 seconds. Get MRU→SLL rates via API

MRU to SLL over the last year

52-week high: 580.57
52-week low: 563.76
52-week average: 570.79
Change over the year: +1.33%

Conversion tables

MRU to SLL
MRU	SLL
1 MRU	575.18 SLL
10 MRU	5,751.78 SLL
100 MRU	57,517.80 SLL
1,000 MRU	575,177.98 SLL
10,000 MRU	5,751,779.83 SLL
50,000 MRU	28,758,899.15 SLL
100,000 MRU	57,517,798.30 SLL

SLL to MRU
SLL	MRU
1 SLL	0.001739 MRU
10 SLL	0.01739 MRU
100 SLL	0.1739 MRU
1,000 SLL	1.74 MRU
10,000 SLL	17.39 MRU
50,000 SLL	86.93 MRU
100,000 SLL	173.86 MRU

Get MRU→SLL rates via API

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

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Questions about MRU to SLL

How much is 100 MRU in SLL?

100 Mauritanian ouguiyas is 57,517.80 old Sierra Leonean leones at the mid-market rate of 4 October 2026, 12:31 UTC, when 1 MRU = 575.178 SLL.

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

Over the last 52 weeks 1 MRU ranged from 563.761 to 580.568 SLL, 570.786 SLL on average.

Which exchange rate is this?

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