| Kalktuff | tufa |
| Kalkputz | plaster |
| Kalkül | calculus calculations |
| Kaktus | cactus |
| Kabuff | coop |
| Kalatsch | kalach |
| Kalette | culet |
| Kalk- | limestone |
| Kalkerde | quicklime |
| Kalkspat | calcite |
| Kalotte | zucchetto calot |
| Kaluga | Kaluga |
| Kalzium | calcium |
| kalken | calcimine |
| kalkig | limy |
| Kalauer | corny joke groaner |
| Kalif | caliph |
| Kalium | potassium |
| Kalk | chalk lime carbonate |
| Kalkstein | limestone |