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  2. BYR to SLL

Old Belarusian Ruble (BYR) to Old Sierra Leonean Leone (SLL)

Convert old Belarusian rubles to old Sierra Leonean leones at the live mid-market rate. Reverse: SLL 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 SLL.

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 BYR to SLE.

1 Old Belarusian Ruble =

1.17 SLL 0.00% today

1 BYR = 1.17267 SLL · 1 SLL = 0.852752 BYR

Mid-market rate, updated 08:53 UTC. Paid plans update as often as every 60 seconds. Get BYR→SLL rates via API

BYR to SLL over the last year

0.801.001.20Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
1.1735
52-week low
0.6630
52-week average
0.9053
Change over the year
+75.02%

Conversion tables

BYR to SLL
BYR SLL
1 BYR 1.17 SLL
10 BYR 11.73 SLL
100 BYR 117.27 SLL
1,000 BYR 1,172.67 SLL
10,000 BYR 11,726.74 SLL
50,000 BYR 58,633.68 SLL
100,000 BYR 117,267.36 SLL
SLL to BYR
SLL BYR
1 SLL 0.8528 BYR
10 SLL 9 BYR
100 SLL 85 BYR
1,000 SLL 853 BYR
10,000 SLL 8,528 BYR
50,000 SLL 42,638 BYR
100,000 SLL 85,275 BYR

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

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Questions about BYR to SLL

How much is 1 BYR in SLL?

1 Old Belarusian Ruble is 1.17267 old Sierra Leonean leones at the mid-market rate of 4 October 2026, 08:53 UTC, and 1 SLL is 0.852752 BYR.

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

Over the last 52 weeks 1 BYR ranged from 0.663032 to 1.17354 SLL, 0.90534 SLL on average.

Which exchange rate is this?

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