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Karstadt
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Karstadt MR40, Teal (Tokyo Electronic Application Lab) 813
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Keltmace
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Keltmace 8D. Details.
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Kessel (Hong Kong company)
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Kessel WP3
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Keystone (see also Atlas-Rand and Berkey)
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Keystone 88. Featured calculator.
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Keystone 2010
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Keystone 2050.
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Kiddy Computer
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Kiddy Computer, calculator teaching game.
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Kings Point
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Kings Point Micro Universal 8410. Details.
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Kings Point 8414. Details.
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Kings Point KP-9, SC-44F, EC-841
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KingsPoint SC60
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King Sonic
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King Sonic (model number unknown). Featured calculator.
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Kit Calculators
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Calculator made from a Kit, circa 1972
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Kitlex
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Kitlex MICRO 6. Details.
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Konkret (Made by RFT - see also RFT)
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RFT konkret 100 and konkret 200 models
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RFT konkret 400 and Elektronika b3-19M
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Kosmos
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Kosmos I, biorhythm calculator. Featured calculator.
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Kosmos Astro, calculator and astrological predictions. Featured calculator. May 07.
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Kovac
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Kovac K-82DP. Details.
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Kovac LE-802, has unusually large LED display, inside. There is also a version with a "D" key (for refreshing the display). Details.
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Kovac pocket mini P-80. Details.
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Kovac Pocket memory P-81. Details.
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Kovac SM-818M, inside. Details.
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Kovac model ? and SM-1210 M
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