Convert 1 Old Sierra Leonean Leone (SLL) to Arbitrum (ARB)

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

Amount

From

1 Old Sierra Leonean Leone =

0.0002152 ARB −0.16% today

1 SLL = 0.0002152 ARB · 1 ARB = 4,646.91 SLL

Mid-market rate, updated 07:01 UTC. Paid plans update as often as every 60 seconds. Get SLL→ARB rates via API

SLL to ARB over the last year

52-week high: 0.00059774
52-week low: 0.00009643
52-week average: 0.00034934
Change over the year: +111.84%

Conversion tables

SLL to ARB
SLL	ARB
1 SLL	0.0002152 ARB
10 SLL	0.002152 ARB
100 SLL	0.02152 ARB
1,000 SLL	0.2152 ARB
10,000 SLL	2.15196800 ARB
50,000 SLL	10.75984000 ARB
100,000 SLL	21.51968000 ARB

ARB to SLL
ARB	SLL
1 ARB	4,646.91 SLL
10 ARB	46,469.09 SLL
100 ARB	464,690.93 SLL
1,000 ARB	4,646,909.33 SLL
10,000 ARB	46,469,093.29 SLL
50,000 ARB	232,345,466.46 SLL
100,000 ARB	464,690,932.93 SLL

Get SLL→ARB rates via API

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

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Questions about SLL to ARB

How much is 1 SLL in ARB?

1 Old Sierra Leonean Leone is 0.0002152 Arbitrums at the mid-market rate of 4 October 2026, 07:01 UTC, when 1 SLL = 0.0002152 ARB.

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

Over the last 52 weeks 1 SLL ranged from 0.00009643 to 0.00059774 ARB, 0.00034934 ARB on average.

Which exchange rate is this?

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