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SLL to PLN exchange rate API

Leone to Zloty · quoted 2026-10-03

0.000168

▲ +5.66% over 1Y

1 SLL = 0.000168 PLN · 1 PLN = 5952.38 SLL · Get this rate via the API

1 SLL buys 0.000168 PLN as of 2026-10-03, so 1 PLN buys 5952.38 SLL. Over the last year, SLL/PLN traded between 0.000146 and 0.000177, averaged 0.000161 and rose 5.66%. The API holds daily SLL/PLN 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/PLN over 1Y

SLL/PLN over 1Y: show the values
PointSLL/PLN
2025-10-030.000159
2025-10-100.000161
2025-10-170.000160
2025-10-240.000161
2025-10-310.000162
2025-11-070.000162
2025-11-140.000160
2025-11-210.000161
2025-11-280.000159
2025-12-050.000158
2025-12-130.000156
2025-12-200.000156
2025-12-270.000156
2026-01-030.000157
2026-01-100.000158
2026-01-170.000159
2026-01-240.000155
2026-01-310.000146
2026-02-070.000156
2026-02-140.000155
2026-02-210.000156
2026-02-280.000155
2026-03-070.000153
2026-03-140.000163
2026-03-210.000161
2026-03-280.000177
2026-04-040.000162
2026-04-150.000171
2026-04-220.000172
2026-04-290.000173
2026-05-060.000171
2026-05-140.000158
2026-05-210.000160
2026-05-290.000158
2026-06-050.000159
2026-06-140.000160
2026-06-210.000162
2026-06-280.000165
2026-07-050.000164
2026-07-120.000166
2026-07-190.000165
2026-07-260.000156
2026-08-020.000162
2026-08-090.000162
2026-08-160.000162
2026-08-240.000161
2026-08-310.000163
2026-09-070.000161
2026-09-140.000163
2026-09-210.000165
2026-09-280.000167

High

0.000177

Low

0.000146

Average

0.000161

For developers

Get this rate via the API

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

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

Replace YOUR_API_KEY with the key from your dashboard.

SLL/PLN API questions

How do I get the SLL/PLN exchange rate from an API?

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

How far back does SLL/PLN historical data go?

Daily SLL/PLN 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/PLN 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.