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GBP to SLL exchange rate API

Pound Sterling to Leone · quoted 2026-10-12

30418.93

▼ +1.98% over 30D

1 GBP = 30418.93 SLL · 1 SLL = 0.000033 GBP · Get this rate via the API

1 GBP buys 30418.93 SLL as of 2026-10-12, so 1 SLL buys 0.000033 GBP. Over the last 30 days, GBP/SLL traded between 27982.11 and 33149.74, averaged 30798.62 and fell 1.98%. 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.

GBP/SLL over 30D

Daily observations · gaps mean no published rate

Download CSV
GBP/SLL over 30D: show the values
Rates per 1 GBP. Missing rates are shown as a dash.
DateSLL
2026-09-1231033.235445
2026-09-1331032.134132
2026-09-1430956.260485
2026-09-1530918.158064
2026-09-1633149.741363
2026-09-1730685.729152
2026-09-1827982.10867
2026-09-1930718.37248
2026-09-2030712.631886
2026-09-2130720.972342
2026-09-2232922.542805
2026-09-2330449.427798
2026-09-2430286.162876
2026-09-2530387.67654
2026-09-2630373.727571
2026-09-2730355.484189
2026-09-2830412.714773
2026-09-3032733.46344
2026-10-0230422.85967
2026-10-0330524.734297
2026-10-0530476.562769
2026-10-0630608.604098
2026-10-0732583.474319
2026-10-0830415.504242
2026-10-0930317.721373
2026-10-1030386.152861
2026-10-1130376.333423
2026-10-1230418.934106

High

33149.74

Low

27982.11

Average

30798.62

Statistics use all 28 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.