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GBP to SLL exchange rate API

Pound Sterling to Leone · quoted 2026-10-12

30377.92

▲ +3.21% over 2Y

1 GBP = 30377.92 SLL · 1 SLL = 0.000033 GBP · Get this rate via the API

1 GBP buys 30377.92 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
2025-10-0130683.983239
2025-10-0230729.302099
2025-10-0330659.49821
2025-10-0430801.60128
2025-10-0531295.405501
2025-10-0630534.745414
2025-10-0731006.938201
2025-10-0830542.258872
2025-10-0930441.65237
2025-10-1030225.250814
2025-10-1130343.293726
2025-10-1230337.002824
2025-10-1330306.184433
2025-10-1430142.155901
2025-10-1530299.849485
2025-10-1630566.096065
2025-10-1730495.49856
2025-10-1830441.04164
2025-10-1930448.927721
2025-10-2030408.306581
2025-10-2130347.529074
2025-10-2230258.04378
2025-10-2330266.643136
2025-10-2430181.053075
2025-10-2530181.624176
2025-10-2630193.455076
2025-10-2730257.940843
2025-10-2830070.918901
2025-10-2929971.922653
2025-10-3029783.669569
2025-10-3129749.805789
2025-11-0129858.09691
2025-11-0229798.28356
2025-11-0329793.370207
2025-11-0429632.487922
2025-11-0529578.033357
2025-11-0629713.357985
2025-11-0729758.734856
2025-11-0829875.188768
2025-11-0929850.824338
2025-11-1029915.642463
2025-11-1129831.602929
2025-11-1229775.997039
2025-11-1329874.391618
2025-11-1429864.356513
2025-11-1530181.599052
2025-11-1630166.5121
2025-11-1729895.244558
2025-11-1830102.001103
2025-11-1930043.76275

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.