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GBP to SLL exchange rate API

Pound Sterling to Leone · quoted 2026-10-12

30376.32

▲ +3.21% over 2Y

1 GBP = 30376.32 SLL · 1 SLL = 0.000033 GBP · Get this rate via the API

1 GBP buys 30376.32 SLL as of 2026-10-12, so 1 SLL buys 0.000033 GBP. Over the last 2 years, GBP/SLL traded between 26537.07 and 33392.99, averaged 30109.44 and rose 3.21%. The API holds daily GBP/SLL rates from 2024-08-24 — 2 years of history — so any past day, or a whole series, is one request away.

Converting an invoice? Convert an amount on a specific date.

Chart sampled every 7 observations · table and exports keep every daily rate

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GBP/SLL over 2Y: show the values
Rates per 1 GBP. Missing rates are shown as a dash.
DateSLL
2025-08-1130484.962307
2025-08-1230587.423392
2025-08-1330868.429847
2025-08-1430881.347663
2025-08-1530846.312878
2025-08-1630775.997485
2025-08-1730812.676724
2025-08-1830763.45857
2025-08-1930699.129798
2025-08-2030620.134005
2025-08-2131336.998027
2025-08-2230512.781981
2025-08-2330765.373185
2025-08-2430703.557005
2025-08-2530724.958146
2025-08-2630677.493093
2025-08-2730568.307496
2025-08-2830747.94082
2025-08-2930624.028445
2025-08-3030734.051546
2025-08-3130716.27802
2025-09-0130761.616907
2025-09-0230543.027185
2025-09-0330497.075855
2025-09-0431307.987689
2025-09-0530677.937283
2025-09-0630709.891555
2025-09-0731272.00762
2025-09-0830764.326137
2025-09-0930827.376625
2025-09-1030776.715432
2025-09-1130756.33014
2025-09-1330853.015708
2025-09-1430856.394971
2025-09-1530991.033057
2025-09-1631072.402829
2025-09-1731093.808503
2025-09-1831015.532462
2025-09-1930734.728189
2025-09-2030623.321557
2025-09-2130659.863269
2025-09-2230711.207057
2025-09-2330742.620146
2025-09-2430685.90663
2025-09-2530575.465761
2025-09-2630428.510603
2025-09-2730504.940197
2025-09-2830528.46686
2025-09-2930621.230563
2025-09-3030622.466938

High

33392.99

Low

26537.07

Average

30109.44

Statistics use all 714 daily observations in the selected period.

For developers

Get this rate via the API

One GET request returns the GBP/SLL rate as JSON. The free plan includes 1,000 requests a month, with no credit card required.

cURL
curl -X GET "https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=GBP&currencies=SLL"
JavaScript
const response = await fetch("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=GBP&currencies=SLL");
const data = await response.json();
Python
import requests

data = requests.get("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=GBP&currencies=SLL").json()

Replace YOUR_API_KEY with the key from your dashboard.

GBP/SLL API questions

How do I get the GBP/SLL exchange rate from an API?

Send one GET request to https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=GBP&currencies=SLL, replacing YOUR_API_KEY with your own key. The JSON response carries the date and the latest GBP/SLL rate in rates.SLL.

How far back does GBP/SLL historical data go?

Daily GBP/SLL rates are available from 2024-08-24. Request one day with the /historical endpoint and a date, or a range of days with /timeseries.

Is there a free GBP/SLL exchange rate API?

Yes. The free plan includes 1,000 requests a month, with no credit card required; paid plans raise the limit.

Put these rates in your application

One endpoint, JSON responses, 160+ currencies and history back to 1999. Start on the free plan.