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GBP to SLL exchange rate API

Pound Sterling to Leone · quoted 2026-10-12

30358.64

▲ +2.04% over 5Y

1 GBP = 30358.64 SLL · 1 SLL = 0.000033 GBP · Get this rate via the API

1 GBP buys 30358.64 SLL as of 2026-10-12, so 1 SLL buys 0.000033 GBP. Over the last 5 years, GBP/SLL traded between 26537.07 and 33392.99, averaged 30093.66 and rose 2.04%. 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 5Y: show the values
Rates per 1 GBP. Missing rates are shown as a dash.
DateSLL
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
2025-11-2029904.96197
2025-11-2129876.337117
2025-11-2229873.237489
2025-11-2329908.945669
2025-11-2429935.222045
2025-11-2530041.495871
2025-11-2630209.227819
2025-11-2730321.627683
2025-11-2830276.220619
2025-11-2930396.811225
2025-11-3030205.984768
2025-12-0130268.702745
2025-12-0230144.524464
2025-12-0330521.040094
2025-12-0430435.587892

High

33392.99

Low

26537.07

Average

30093.66

Statistics use all 749 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.