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  2. BGN to SLL

Bulgarian Lev (BGN) to Old Sierra Leonean Leone (SLL)

Convert Bulgarian leva to old Sierra Leonean leones at the live mid-market rate. Reverse: SLL to BGN

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 BGN to SLE.

1 Bulgarian Lev =

13,804.44 SLL 0.00% today

1 BGN = 13,804.44 SLL · 1 SLL = 0.00007244 BGN

Mid-market rate, updated 15:32 UTC. Paid plans update as often as every 60 seconds. Get BGN→SLL rates via API

BGN to SLL over the last year

13,400.0013,600.0013,800.00Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
13,814.59
52-week low
13,279.27
52-week average
13,666.62
Change over the year
+1.48%

Conversion tables

BGN to SLL
BGN SLL
1 BGN 13,804.44 SLL
10 BGN 138,044.45 SLL
100 BGN 1,380,444.49 SLL
1,000 BGN 13,804,444.89 SLL
10,000 BGN 138,044,448.94 SLL
50,000 BGN 690,222,244.69 SLL
100,000 BGN 1,380,444,489.39 SLL
SLL to BGN
SLL BGN
1 SLL 0.00007244 BGN
10 SLL 0.0007244 BGN
100 SLL 0.007244 BGN
1,000 SLL 0.07244 BGN
10,000 SLL 0.7244 BGN
50,000 SLL 3.62 BGN
100,000 SLL 7.24 BGN

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

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Questions about BGN to SLL

How much is 1 BGN in SLL?

1 Bulgarian Lev is 13,804.44 old Sierra Leonean leones at the mid-market rate of 4 October 2026, 15:32 UTC, and 1 SLL is 0.00007244 BGN.

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

Over the last 52 weeks 1 BGN ranged from 13,279.27 to 13,814.59 SLL, 13,666.62 SLL on average.

Which exchange rate is this?

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