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GBP to SLL exchange rate API

Pound Sterling to Leone · quoted 2026-10-12

30418.93

▲ +3.35% over 2Y

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 2 years, GBP/SLL traded between 26537.07 and 33392.99, averaged 30109.50 and rose 3.35%. 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
2024-10-1229432.556161
2024-10-1329440.947683
2024-10-1429417.348654
2024-10-1529511.156627
2024-10-1629389.670794
2024-10-1729438.774924
2024-10-1829489.924033
2024-10-1929752.81197
2024-10-2029733.773889
2024-10-2129865.810529
2024-10-2229473.058591
2024-10-2329393.640925
2024-10-2429465.111876
2024-10-2529537.441709
2024-10-2629447.862982
2024-10-2729460.318333
2024-10-2829501.448292
2024-10-2929457.640572
2024-10-3029426.428811
2024-10-3129694.793598
2024-11-0129618.808804
2024-11-0229332.096661
2024-11-0329394.053463
2024-11-0429501.845883
2024-11-0529506.775449
2024-11-0629234.537374
2024-11-0729363.545289
2024-11-0829506.431724
2024-11-0929367.70223
2024-11-1029371.462137
2024-11-1129303.975711
2024-11-1229154.50664
2024-11-1329051.02276
2024-11-1428600.811326
2024-11-1528840.7384
2024-11-1628608.071842
2024-11-1728620.439663
2024-11-1828543.261818
2024-11-1928656.950865
2024-11-2028628.080884
2024-11-2128535.509217
2024-11-2228429.731259
2024-11-2328456.363741
2024-11-2428523.456479
2024-11-2528565.945597
2024-11-2628610.169776
2024-11-2728699.918399
2024-11-2828814.717143
2024-11-2928861.166724
2024-11-3028985.281276

High

33392.99

Low

26537.07

Average

30109.50

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.