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Old Sierra Leonean Leone (SLL) to Singapore Dollar (SGD)

Convert old Sierra Leonean leones to Singapore dollars at the live mid-market rate. Reverse: SGD 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 SLE to SGD.

1 Old Sierra Leonean Leone =

0.00005566 SGD 0.00% today

1 SLL = 0.00005566 SGD · 1 SGD = 17,964.98 SLL

Mid-market rate, updated 14:08 UTC. Paid plans update as often as every 60 seconds. Get SLL→SGD rates via API

SLL to SGD over the last year

0.0000550.0000560.0000570.000058Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
0.00005782
52-week low
0.00005505
52-week average
0.00005627
Change over the year
−2.10%

Conversion tables

SLL to SGD
SLL SGD
1 SLL 0.00005566 SGD
10 SLL 0.0005566 SGD
100 SLL 0.005566 SGD
1,000 SLL 0.05566 SGD
10,000 SLL 0.5566 SGD
50,000 SLL 2.78 SGD
100,000 SLL 5.57 SGD
SGD to SLL
SGD SLL
1 SGD 17,964.98 SLL
10 SGD 179,649.82 SLL
100 SGD 1,796,498.23 SLL
1,000 SGD 17,964,982.26 SLL
10,000 SGD 179,649,822.57 SLL
50,000 SGD 898,249,112.87 SLL
100,000 SGD 1,796,498,225.74 SLL

Get SLL→SGD rates via API

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

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

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Questions about SLL to SGD

How much is 1 SLL in SGD?

1 Old Sierra Leonean Leone is 0.00005566 Singapore dollars at the mid-market rate of 4 October 2026, 14:08 UTC, and 1 SGD is 17,964.98 SLL.

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

Over the last 52 weeks 1 SLL ranged from 0.00005505 to 0.00005782 SGD, 0.00005627 SGD on average.

Which exchange rate is this?

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