Manuals for Casio Calculators

Below you can find all models Casio Calculators for which we have manuals available. Also view the frequenty asked questions at the bottom of the page for useful tips about your product. Is your model not on the list? Please contact us.

Is your product defective and the manual offers no solution? Go to a Repair Café for free repair services.

Frequently Asked Questions

Our support team searches for useful product information and answers to frequently asked questions. If you find an inaccuracy in our frequently asked questions, please let us know by using our contact form.

A battery in my device is oxidized, can I still safely use it? Verified

Ja, the device can still be safely used. Firstly, remove the oxidizd battery. Never use bare hands to do this. Then clean the battery compartment with a cotton swab dipped in vinegar or lemon juice. Let it dry and insert new batteries.

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What does an Overflow-Error mean? Verified

This error occurs when the calculation results in an answer that is longer than the calculator can display. The answer will be rounded up or down.

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Latest comments

Manual Casio MS-80B Calculator
Theo 05-05-2026
NO PERCENTAGE IS POSSIBLE OR AM I STUPID???


(Translated by Google)
Casio MS-80B Calculator
Manual Casio HR-150RCE Calculator
Crémèse Louis 11-04-2026
How to change the time on Casio HR-150RCE. I can't find a "Mode" button on the machine


(Translated by Google)
Casio HR-150RCE Calculator
Manual Casio HR-8RCE Calculator
BAILLY 10-02-2026
Instructions for use unusable all the diapers are mixed, printed it is illegible too small, brief instructions for use useless


(Translated by Google)
Casio HR-8RCE Calculator
Manual Casio HR-200RCE Calculator
MESSAOUDI 16-01-2026
IS DISPLAYED ON THE SCREEN AS FOLLOWS “P - -Error”


(Translated by Google)
Casio HR-200RCE Calculator
Manual Casio FR-2650RC Calculator
Herbert 06-01-2026
Can you save individual results and print them out as one result at the end? Like a z-bon


(Translated by Google)
Casio FR-2650RC Calculator