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GBP to SLL exchange rate API

Pound Sterling to Leone · quoted 2026-10-12

30436.68

▲ +3.41% over 2Y

1 GBP = 30436.68 SLL · 1 SLL = 0.000033 GBP · Get this rate via the API

1 GBP buys 30436.68 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 30109.52 and rose 3.41%. 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
2025-01-2027797.913484
2025-01-2127912.855737
2025-01-2228125.446969
2025-01-2327946.179739
2025-01-2428164.494294
2025-01-2528347.903667
2025-01-2628335.098148
2025-01-2728419.001561
2025-01-2828204.887216
2025-01-2928185.881145
2025-01-3028429.84527
2025-01-3128427.136544
2025-02-0128156.229545
2025-02-0227993.240683
2025-02-0328322.209112
2025-02-0428427.648891
2025-02-0528649.045713
2025-02-0628237.268203
2025-02-0728278.643278
2025-02-0828228.410197
2025-02-0928212.724534
2025-02-1028237.820986
2025-02-1128176.841046
2025-02-1228418.24308
2025-02-1328623.596555
2025-02-1428707.8271
2025-02-1528631.419656
2025-02-1628650.219736
2025-02-1728659.547164
2025-02-1828627.488735
2025-02-1928751.211216
2025-02-2028673.571861
2025-02-2129433.379263
2025-02-2228749.631631
2025-02-2328826.165623
2025-02-2428756.170093
2025-02-2529037.831809
2025-02-2626537.06916
2025-02-2728956.623572
2025-02-2828796.724282
2025-03-0128744.755034
2025-03-0228702.255698
2025-03-0328971.751223
2025-03-0429028.563669
2025-03-0529259.05754
2025-03-0629438.7252
2025-03-0729563.59435
2025-03-0829457.397333
2025-03-0927087.846931
2025-03-1029538.714732

High

33392.99

Low

26537.07

Average

30109.52

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.