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Casio HQ-21

The Casio HQ-21 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 5 functions, 24 keys, and an LCD (liquid crystal) display. Note: time/date function

Facts at a glance:

FeatureValue
TypeArithmetic
Functions5
Keys24
Precision8
LogicAlgebraic
Display typeLCD
Year introduced1985

Replacements:

If you have a Casio HQ-21 that is no longer working, you can consider replacing the calculator with a modern equivalent. We suggest the following current models as possible replacements:

See other calculators by Casio