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ERN to BTN exchange rate API

Nakfa to Ngultrum · quoted 2026-10-02

6.4191

▲ +7.23% over YTD

1 ERN = 6.4191 BTN · 1 BTN = 0.15579 ERN · Get this rate via the API

1 ERN buys 6.4191 BTN as of 2026-10-02, so 1 BTN buys 0.15579 ERN. Over the year to date, ERN/BTN traded between 5.9864 and 6.4357, averaged 6.2575 and rose 7.23%. The API holds daily ERN/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.

ERN/BTN over YTD

ERN/BTN over YTD: show the values
PointERN/BTN
2025-12-315.9864
2026-01-076.0104
2026-01-146.0169
2026-01-216.0728
2026-01-286.1024
2026-02-046.0262
2026-02-116.0371
2026-02-186.0421
2026-02-256.0591
2026-03-046.1402
2026-03-116.1255
2026-03-186.1580
2026-03-256.2595
2026-04-016.2397
2026-04-086.1632
2026-04-156.2079
2026-04-226.2295
2026-04-296.2981
2026-05-066.3356
2026-05-146.3807
2026-05-216.4252
2026-05-296.3721
2026-06-056.3789
2026-06-146.3470
2026-06-216.2969
2026-06-286.3016
2026-07-056.3598
2026-07-126.3657
2026-07-196.4259
2026-07-266.4357
2026-08-026.3633
2026-08-096.3485
2026-08-166.3701
2026-08-246.3801
2026-08-316.3624
2026-09-076.2973
2026-09-146.3783
2026-09-216.3847
2026-09-286.3962

High

6.4357

Low

5.9864

Average

6.2575

For developers

Get this rate via the API

One GET request returns the ERN/BTN 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=ERN&currencies=BTN"
JavaScript
const response = await fetch("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=ERN&currencies=BTN");
const data = await response.json();
Python
import requests

data = requests.get("https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=ERN&currencies=BTN").json()

Replace YOUR_API_KEY with the key from your dashboard.

ERN/BTN API questions

How do I get the ERN/BTN exchange rate from an API?

Send one GET request to https://api.fxfeed.io/v2/latest?api_key=YOUR_API_KEY&base=ERN&currencies=BTN, replacing YOUR_API_KEY with your own key. The JSON response carries the date and the latest ERN/BTN rate in rates.BTN.

How far back does ERN/BTN historical data go?

Daily ERN/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 ERN/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.