| Season | Team | Competition | MP | G | A | Rating | ||
|---|---|---|---|---|---|---|---|---|
| 2026 | Breidablik | Icelandic Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2026 | Breidablik | League Cup | 1 | 1 | 0 | 0 | 0 | – |
| 2025 | Breidablik | Icelandic Cup | 2 | 0 | 0 | 1 | 0 | – |
| 2025 | Breidablik | Super Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2025 | Breidablik | League Cup | 5 | 2 | 0 | 1 | 0 | – |
| 2024 | Breidablik | Icelandic Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2024 | Breidablik | League Cup | 6 | 2 | 0 | 2 | 0 | – |
| 2023 | Breidablik | Icelandic Cup | 2 | 0 | 0 | 0 | 0 | – |
| 2023 | Breidablik | League Cup | 3 | 0 | 0 | 1 | 0 | – |
| 2022 | Breidablik | Icelandic Cup | 3 | 1 | 0 | 1 | 0 | – |
| 2022 | Breidablik | Super Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2022 | Breidablik | League Cup | 3 | 1 | 0 | 0 | 0 | – |
| 2022 | Breidablik | Fotbolti.net Cup | 3 | 3 | 0 | 0 | 0 | – |
| 2021 | Breidablik | League Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2020 | Breidablik | Icelandic Cup | 3 | 2 | 0 | 0 | 0 | – |
| 2019 | Hafnarfjordur | Icelandic Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2019 | Hafnarfjordur | League Cup | 1 | 0 | 0 | 1 | 0 | – |
| 2018 | Hafnarfjordur | Icelandic Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2013/2014 | Halmstad | Svenska Cupen | 1 | 1 | 0 | 0 | 0 | – |
| 2012/2013 | Halmstad | Svenska Cupen | 1 | 1 | 0 | 0 | 0 | – |
| Total | 41 | 14 | 0 | 7 | 0 | – | ||
| Fecha | Desde | Hacia | Tipo | |
|---|---|---|---|---|
| - | Hafnarfjordur | Breidablik | Free agent | |
| 01 ene 2018 | Sundsvall | Hafnarfjordur | Free agent | |
| 01 ene 2016 | Columbus Crew | Sundsvall | Free agent | |
| 01 ene 2015 | Halmstad | Columbus Crew | Free agent | |
| - | Breidablik | Halmstad | Free agent |
K. Steindorsson career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.