1. Central bank exchange rates
  2. Czech National Bank
  3. ISK

Czech National Bank Icelandic Króna rate

1 ISK = 0.17847 CZK +0.12%

Published Tuesday, 29 September 2026 as the central bank exchange rate fixing.

1 CZK = 5.60318 ISK

ISK to CZK over the last year

0.1650.170.175Nov ’25Jan ’26Mar ’26May ’26Jul ’26Sep ’26
52-week high
0.17847
52-week low
0.16188
52-week average
0.16870
Change over the year
+4.41%

Yearly averages

The mean of each year’s publications, 1 ISK in CZK. Open a year for every daily rate and the monthly averages.

YearAverageHighLowPublications
2026 0.16932 0.17847 0.16398 187
2025 0.17075 0.17558 0.16188 251
2024 0.16824 0.17533 0.16244 252
2023 0.16107 0.17112 0.15156 250
2022 0.17283 0.18209 0.15796 252
2021 0.17080 0.17700 0.16504 252
2020 0.17158 0.18580 0.15942 251
2019 0.18707 0.19315 0.17950 251
2018 0.20120 0.21155 0.18247 250
2009 0.16722 0.20575 0.14383 129
2008 0.20304 0.28883 0.13714 253
2007 0.31716 0.34652 0.28613 251
2006 0.32522 0.39073 0.29188 251
2005 0.38096 0.41264 0.35511 253
2004 0.36617 0.38672 0.35378 254

This rate via API

The Czech National Bank ISK rate for any day since 2 January 2004, or every publication in a range of up to a year, as JSON or CSV.

Get a free API key API documentation 
curl https://api.currencyapi.com/v3/official \
  -G -d source=cnb -d base_currency=ISK \
  -d currencies=CZK -d date=2026-09-29 \
  -H "apikey: YOUR-API-KEY"

# every publication of 2026
curl https://api.currencyapi.com/v3/official/range \
  -G -d source=cnb -d currencies=ISK \
  -d date_from=2026-01-01 -d date_to=2026-12-31 \
  -H "apikey: YOUR-API-KEY"

Icelandic Króna at other central banks

Questions about this rate

What is the Czech National Bank ISK rate today?

On 29 September 2026 the Czech National Bank published 1 ISK = 0.17847 CZK (1 CZK = 5.60318 ISK).

What was the average ISK rate in 2026?

The average of the 187 publications in 2026 is 1 ISK = 0.169321 CZK, the simple mean of the daily rates.

Is this the rate I must use for tax or accounting?

That depends on your jurisdiction. Many rules name a specific bank and day, for example the rate published on the business day before the transaction. Use the date lookup in the API to get exactly the publication your rule asks for.