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Old Sierra Leonean Leone (SLL) to Cardano (ADA)

Convert old Sierra Leonean leones to Cardanos at the live mid-market rate. Reverse: ADA 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 ADA.

1 Old Sierra Leonean Leone =

0.0001777 ADA −0.13% today

1 SLL = 0.00017773 ADA · 1 ADA = 5,626.45 SLL

Mid-market rate, updated 05:55 UTC. Paid plans update as often as every 60 seconds. Get SLL→ADA rates via API

SLL to ADA over the last year

0.00010.00020.0003Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
0.00030391
52-week low
0.00005052
52-week average
0.00016837
Change over the year
+238.21%

Conversion tables

SLL to ADA
SLL ADA
1 SLL 0.0001777 ADA
10 SLL 0.001777 ADA
100 SLL 0.01777 ADA
1,000 SLL 0.1777 ADA
10,000 SLL 1.777320 ADA
50,000 SLL 8.886600 ADA
100,000 SLL 17.773200 ADA
ADA to SLL
ADA SLL
1 ADA 5,626.45 SLL
10 ADA 56,264.47 SLL
100 ADA 562,644.73 SLL
1,000 ADA 5,626,447.28 SLL
10,000 ADA 56,264,472.76 SLL
50,000 ADA 281,322,363.79 SLL
100,000 ADA 562,644,727.58 SLL

Get SLL→ADA rates via API

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

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Questions about SLL to ADA

How much is 1 SLL in ADA?

1 Old Sierra Leonean Leone is 0.00017773 Cardanos at the mid-market rate of 4 October 2026, 05:55 UTC, and 1 ADA is 5,626.45 SLL.

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

Over the last 52 weeks 1 SLL ranged from 0.00005052 to 0.00030391 ADA, 0.00016837 ADA on average.

Which exchange rate is this?

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