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GBP to SLL exchange rate API

Pound Sterling to Leone · quoted 2026-10-12

30436.68

▲ +7.12% over 6M

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 6 months, GBP/SLL traded between 27903.05 and 33392.99, averaged 30479.73 and rose 7.12%. 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.

Daily observations · gaps mean no published rate

Download CSV
GBP/SLL over 6M: show the values
Rates per 1 GBP. Missing rates are shown as a dash.
DateSLL
2026-04-1528414.407877
2026-04-1628400.290835
2026-04-1728379.392907
2026-04-1828359.16182
2026-04-1928325.700427
2026-04-2028330.343787
2026-04-2128350.456641
2026-04-2228311.474533
2026-04-2328324.302308
2026-04-2428293.371787
2026-04-2528299.395466
2026-04-2628319.138947
2026-04-2728455.872048
2026-04-2828244.715721
2026-04-2928331.107117
2026-04-3028327.274083
2026-05-0128525.619658
2026-05-0228472.370066
2026-05-0328526.704726
2026-05-0428410.026209
2026-05-0528380.944535
2026-05-0628556.626464
2026-05-0728562.793157
2026-05-0828540.965824
2026-05-0928589.803367
2026-05-1028519.538519
2026-05-1128524.926622
2026-05-1230912.940557
2026-05-1430883.373039
2026-05-1528010.73128
2026-05-1631970.88588
2026-05-1730537.200298
2026-05-1828068.589777
2026-05-1930708.643663
2026-05-2030650.674515
2026-05-2130663.747728
2026-05-2330718.123428
2026-05-2430748.756434
2026-05-2530870.880765
2026-05-2630790.430903
2026-05-2730691.825399
2026-05-2830622.361329
2026-05-2930713.410964
2026-05-3030772.365948
2026-05-3130760.668184
2026-06-0130787.004047
2026-06-0233200.505671
2026-06-0333073.750628
2026-06-0430725.102678
2026-06-0530772.200495

High

33392.99

Low

27903.05

Average

30479.73

Statistics use all 173 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.