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  2. SLL to CZK

Old Sierra Leonean Leone (SLL) to Czech Koruna (CZK)

Convert old Sierra Leonean leones to Czech korunas at the live mid-market rate. Reverse: CZK 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 CZK.

1 Old Sierra Leonean Leone =

0.0009444 CZK 0.00% today

1 SLL = 0.00094442 CZK · 1 CZK = 1,058.85 SLL

Mid-market rate, updated 07:18 UTC. Paid plans update as often as every 60 seconds. Get SLL→CZK rates via API

SLL to CZK over the last year

0.00090.000920.00094Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
0.00094643
52-week low
0.00088615
52-week average
0.00091692
Change over the year
+3.64%

Conversion tables

SLL to CZK
SLL CZK
1 SLL 0.0009444 CZK
10 SLL 0.009444 CZK
100 SLL 0.09444 CZK
1,000 SLL 0.9444 CZK
10,000 SLL 9.44 CZK
50,000 SLL 47.22 CZK
100,000 SLL 94.44 CZK
CZK to SLL
CZK SLL
1 CZK 1,058.85 SLL
10 CZK 10,588.47 SLL
100 CZK 105,884.74 SLL
1,000 CZK 1,058,847.36 SLL
10,000 CZK 10,588,473.61 SLL
50,000 CZK 52,942,368.07 SLL
100,000 CZK 105,884,736.15 SLL

Get SLL→CZK rates via API

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

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Questions about SLL to CZK

How much is 1 SLL in CZK?

1 Old Sierra Leonean Leone is 0.00094442 Czech korunas at the mid-market rate of 4 October 2026, 07:18 UTC, and 1 CZK is 1,058.85 SLL.

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

Over the last 52 weeks 1 SLL ranged from 0.00088615 to 0.00094643 CZK, 0.00091692 CZK on average.

Which exchange rate is this?

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