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  2. SLL to TWD

Old Sierra Leonean Leone (SLL) to New Taiwan Dollar (TWD)

Convert old Sierra Leonean leones to New Taiwan dollars at the live mid-market rate. Reverse: TWD 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 TWD.

New Taiwan Dollar (TWD) is not the US Dollar (USD). Looking for SLL to USD?

1 Old Sierra Leonean Leone =

0.001386 TWD 0.00% today

1 SLL = 0.00138555 TWD · 1 TWD = 721.736 SLL

Mid-market rate, updated 06:14 UTC. Paid plans update as often as every 60 seconds. Get SLL→TWD rates via API

SLL to TWD over the last year

0.001350.0013750.00140.001425Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
0.0014206
52-week low
0.0013408
52-week average
0.0013856
Change over the year
+3.34%

Conversion tables

SLL to TWD
SLL TWD
1 SLL 0.001386 TWD
10 SLL 0.01386 TWD
100 SLL 0.1386 TWD
1,000 SLL 1.39 TWD
10,000 SLL 13.86 TWD
50,000 SLL 69.28 TWD
100,000 SLL 138.55 TWD
TWD to SLL
TWD SLL
1 TWD 721.74 SLL
10 TWD 7,217.36 SLL
100 TWD 72,173.59 SLL
1,000 TWD 721,735.85 SLL
10,000 TWD 7,217,358.54 SLL
50,000 TWD 36,086,792.71 SLL
100,000 TWD 72,173,585.43 SLL

Get SLL→TWD rates via API

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

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Questions about SLL to TWD

How much is 1 SLL in TWD?

1 Old Sierra Leonean Leone is 0.00138555 New Taiwan dollars at the mid-market rate of 4 October 2026, 06:14 UTC, and 1 TWD is 721.736 SLL.

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

Over the last 52 weeks 1 SLL ranged from 0.00134081 to 0.00142065 TWD, 0.00138564 TWD on average.

Which exchange rate is this?

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