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GBP to SLL exchange rate API

Pound Sterling to Leone · quoted 2026-10-12

30326.12

▲ +3.04% over 2Y

1 GBP = 30326.12 SLL · 1 SLL = 0.000033 GBP · Get this rate via the API

1 GBP buys 30326.12 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 30109.37 and rose 3.04%. 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 2Y: show the values
Rates per 1 GBP. Missing rates are shown as a dash.
DateSLL
2026-08-0630852.799128
2026-08-0730765.809914
2026-08-0831122.720802
2026-08-0930842.662721
2026-08-1030850.806664
2026-08-1130874.133687
2026-08-1230891.80568
2026-08-1331850.601418
2026-08-1431005.424611
2026-08-1531009.665842
2026-08-1631008.919456
2026-08-1731063.839014
2026-08-1831010.695243
2026-08-2031220.781432
2026-08-2131272.064254
2026-08-2231684.047935
2026-08-2333392.988111
2026-08-2431188.043198
2026-08-2531169.041898
2026-08-2631165.347557
2026-08-2731095.326684
2026-08-2831117.759756
2026-08-2931745.955344
2026-08-3031045.900879
2026-08-3130997.724776
2026-09-0131013.082287
2026-09-0230899.819804
2026-09-0330942.071098
2026-09-0433251.243365
2026-09-0531545.200228
2026-09-0630983.53559
2026-09-0731012.169526
2026-09-0831046.572793
2026-09-0931104.294183
2026-09-1030988.677304
2026-09-1130989.610429
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

High

33392.99

Low

26537.07

Average

30109.37

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.