SLL to BTN exchange rate API
Leone to Ngultrum · quoted 2026-10-02
0.004177
▲ +7.41% over 1Y
1 SLL = 0.004177 BTN · 1 BTN = 239.4063 SLL · Get this rate via the API
1 SLL buys 0.004177 BTN as of 2026-10-02, so 1 BTN buys 239.4063 SLL. Over the last year, SLL/BTN traded between 0.003850 and 0.004533, averaged 0.004073 and rose 7.41%. The API holds daily SLL/BTN 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.
SLL/BTN over 1Y: show the values
| Point | SLL/BTN |
|---|---|
| 2025-10-02 | 0.003889 |
| 2025-10-09 | 0.003898 |
| 2025-10-16 | 0.003850 |
| 2025-10-23 | 0.003869 |
| 2025-10-30 | 0.003893 |
| 2025-11-06 | 0.003905 |
| 2025-11-13 | 0.003908 |
| 2025-11-20 | 0.003865 |
| 2025-11-27 | 0.003892 |
| 2025-12-04 | 0.003953 |
| 2025-12-12 | 0.003918 |
| 2025-12-19 | 0.003930 |
| 2025-12-26 | 0.003926 |
| 2026-01-02 | 0.003940 |
| 2026-01-09 | 0.003932 |
| 2026-01-16 | 0.003951 |
| 2026-01-23 | 0.003989 |
| 2026-01-30 | 0.004016 |
| 2026-02-06 | 0.003931 |
| 2026-02-13 | 0.003961 |
| 2026-02-20 | 0.003966 |
| 2026-02-27 | 0.003971 |
| 2026-03-06 | 0.003993 |
| 2026-03-13 | 0.004030 |
| 2026-03-20 | 0.004072 |
| 2026-03-27 | 0.004115 |
| 2026-04-03 | 0.004046 |
| 2026-04-14 | 0.004443 |
| 2026-04-21 | 0.004439 |
| 2026-04-28 | 0.004500 |
| 2026-05-05 | 0.004533 |
| 2026-05-12 | 0.004179 |
| 2026-05-20 | 0.004232 |
| 2026-05-28 | 0.004216 |
| 2026-06-04 | 0.004191 |
| 2026-06-13 | 0.004170 |
| 2026-06-20 | 0.004131 |
| 2026-06-27 | 0.004136 |
| 2026-07-04 | 0.004180 |
| 2026-07-11 | 0.004174 |
| 2026-07-18 | 0.004224 |
| 2026-07-25 | 0.004077 |
| 2026-08-01 | 0.004166 |
| 2026-08-08 | 0.004121 |
| 2026-08-15 | 0.004171 |
| 2026-08-23 | 0.003908 |
| 2026-08-30 | 0.004160 |
| 2026-09-06 | 0.004122 |
| 2026-09-13 | 0.004166 |
| 2026-09-20 | 0.004183 |
| 2026-09-27 | 0.004176 |
High
0.004533
Low
0.003850
Average
0.004073
Get this rate via the API
One GET request returns the SLL/BTN rate as JSON. The free plan includes 1,000 requests a month, with no credit card required.
curl -X GET "https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=SLL¤cies=BTN"const response = await fetch("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=SLL¤cies=BTN");
const data = await response.json();import requests
data = requests.get("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=SLL¤cies=BTN").json()Replace YOUR_API_KEY with the key from your dashboard.
SLL/BTN API questions
How do I get the SLL/BTN exchange rate from an API?
Send one GET request to https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=SLL¤cies=BTN, replacing YOUR_API_KEY with your own key. The JSON response carries the date and the latest SLL/BTN rate in rates.BTN.
How far back does SLL/BTN historical data go?
Daily SLL/BTN 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 SLL/BTN 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.