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Old Sierra Leonean Leone (SLL) to US Dollar (USD)

Convert old Sierra Leonean leones to US dollars at the live mid-market rate. Reverse: USD 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 USD.

1 Old Sierra Leonean Leone =

0.00004351 USD +0.09% today

1 SLL = 0.00004351 USD · 1 USD = 22,981.50 SLL

Mid-market rate, updated 22:09 UTC. Paid plans update as often as every 60 seconds. Get SLL→USD rates via API

SLL to USD over the last year

0.00004350.000043750.0000440.00004425Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
0.00004427
52-week low
0.00004348
52-week average
0.00004385
Change over the year
−1.06%

Conversion tables

SLL to USD
SLL USD
1 SLL 0.00004351 USD
10 SLL 0.0004351 USD
100 SLL 0.004351 USD
1,000 SLL 0.04351 USD
10,000 SLL 0.4351 USD
50,000 SLL 2.18 USD
100,000 SLL 4.35 USD
USD to SLL
USD SLL
1 USD 22,981.50 SLL
10 USD 229,815.04 SLL
100 USD 2,298,150.37 SLL
1,000 USD 22,981,503.71 SLL
10,000 USD 229,815,037.15 SLL
50,000 USD 1,149,075,185.74 SLL
100,000 USD 2,298,150,371.48 SLL

Get SLL→USD rates via API

The live rate, the rate on any past day or a whole range, for USD 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=USD \
  -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=USD \
  -d date=2025-10-01 \
  -H "apikey: YOUR-API-KEY"

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Questions about SLL to USD

How much is 1 SLL in USD?

1 Old Sierra Leonean Leone is 0.00004351 US dollars at the mid-market rate of 1 October 2026, 22:09 UTC, and 1 USD is 22,981.50 SLL.

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

Over the last 52 weeks 1 SLL ranged from 0.00004348 to 0.00004427 USD, 0.00004385 USD on average.

Which exchange rate is this?

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