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Japanese Yen (JPY) to Old Sierra Leonean Leone (SLL)

Convert Japanese yen to old Sierra Leonean leones at the live mid-market rate. Reverse: SLL to JPY

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 JPY to SLE.

1 Japanese Yen =

145.31 SLL −0.14% today

1 JPY = 145.31 SLL · 1 SLL = 0.00688184 JPY

Mid-market rate, updated 01:32 UTC. Paid plans update as often as every 60 seconds. Get JPY→SLL rates via API

JPY to SLL over the last year

140.00145.00150.00155.00Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
154.51
52-week low
139.18
52-week average
144.89
Change over the year
−5.95%

Conversion tables

JPY to SLL
JPY SLL
1 JPY 145.31 SLL
10 JPY 1,453.10 SLL
100 JPY 14,531.00 SLL
1,000 JPY 145,309.98 SLL
10,000 JPY 1,453,099.81 SLL
50,000 JPY 7,265,499.05 SLL
100,000 JPY 14,530,998.11 SLL
SLL to JPY
SLL JPY
1 SLL 0.006882 JPY
10 SLL 0.06882 JPY
100 SLL 0.6882 JPY
1,000 SLL 7 JPY
10,000 SLL 69 JPY
50,000 SLL 344 JPY
100,000 SLL 688 JPY

Get JPY→SLL rates via API

The live rate, the rate on any past day or a whole range, for SLL 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=JPY -d currencies=SLL \
  -H "apikey: YOUR-API-KEY"

# the rate on a past day
curl https://api.currencyapi.com/v3/historical \
  -G -d base_currency=JPY -d currencies=SLL \
  -d date=2025-10-02 \
  -H "apikey: YOUR-API-KEY"

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Questions about JPY to SLL

How much is 1 JPY in SLL?

1 Japanese Yen is 145.31 old Sierra Leonean leones at the mid-market rate of 2 October 2026, 01:32 UTC, and 1 SLL is 0.00688184 JPY.

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

Over the last 52 weeks 1 JPY ranged from 139.182 to 154.509 SLL, 144.887 SLL on average.

Which exchange rate is this?

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