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Old Sierra Leonean Leone (SLL) to Iranian Rial (IRR)

Convert old Sierra Leonean leones to Iranian rials at the live mid-market rate. Reverse: IRR 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 IRR.

1 Old Sierra Leonean Leone =

76 IRR 0.00% today

1 SLL = 75.7931 IRR · 1 IRR = 0.0131938 SLL

Mid-market rate, updated 04:07 UTC. Paid plans update as often as every 60 seconds. Get SLL→IRR rates via API

SLL to IRR over the last year

025.0050.0075.00Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
75.950
52-week low
1.828
52-week average
43.672
Change over the year
+3,991.26%

Conversion tables

SLL to IRR
SLL IRR
1 SLL 76 IRR
10 SLL 758 IRR
100 SLL 7,579 IRR
1,000 SLL 75,793 IRR
10,000 SLL 757,931 IRR
50,000 SLL 3,789,657 IRR
100,000 SLL 7,579,314 IRR
IRR to SLL
IRR SLL
1 IRR 0.01319 SLL
10 IRR 0.1319 SLL
100 IRR 1.32 SLL
1,000 IRR 13.19 SLL
10,000 IRR 131.94 SLL
50,000 IRR 659.69 SLL
100,000 IRR 1,319.38 SLL

Get SLL→IRR rates via API

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

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Questions about SLL to IRR

How much is 1 SLL in IRR?

1 Old Sierra Leonean Leone is 75.7931 Iranian rials at the mid-market rate of 4 October 2026, 04:07 UTC, and 1 IRR is 0.0131938 SLL.

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

Over the last 52 weeks 1 SLL ranged from 1.82844 to 75.9498 IRR, 43.6721 IRR on average.

Which exchange rate is this?

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