Calculator software that can enlarge characters even in a compact. date /time calculation, also corresponds to a scientific calculator.

Ver5.80 October 6, 2022


Support for high ppi monitors.
Fixed a bug related to window size.
Fixed a freeze bug when trying to paste too large strings from the clipboard.
"." key after pressing "/*-+" key, "0." will be input.
Updated code signing.


The software can be used free of charge.


M - Calc is a compact calculator pursuing ease of use. You can erase thenumeric buttons on the window assuming you want to operate with the keyboard.Since only numeric windows are displayed and do not take up space, it isconvenient to use M - Calc while doing other work. You can freely change thefont size of the numerical window. If you stick to the design, you can createyour own skin and apply it.


Not only appearance but also calculation function are enriched. Itcorresponds to both general calculators and scientific calculators. A generalcalculator can be handled by the same key operation as Sharp or Citizen type.Unit conversion, date time calculation, loan repayment amount calculation, etc.are equipped with necessary and sufficient functions. If you feel inconvenientto the calculator that was originally included in Windows, please try itonce.

Screen Shots




For various settings, options, date/time calculations, etc., right-click onthe main window from the menu.

M-Calc License Agreement

If you wish to use M-Calc (including programs, images, documents, etc. If you wish to use the Software on your computer (hereinafter referred to as "PC"), please agree to the following Software License Agreement.


License Agreement
The Software may be used free of charge.


2. Copyright
The copyright of this software belongs to TubakuroSoft.


3. Prohibition
Reverse engineering, decompiling or disassembling this software is prohibited.
No modification or alteration of this software is allowed.


4. Disclaimer
The author shall not be liable for any loss of profit resulting directly or indirectly from this software or related services. Any problems arising from the use of this software shall be handled at your own risk.
The authors assume no responsibility to support the handling of this software.


5. termination of contract
The license of this software will be terminated in the event of breach of this agreement.
The user of this software may not claim compensation or any other payment in any name from the author for termination of this agreement for any reason whatsoever.


6. language
If this Agreement or any document related to this Agreement is translated into any language other than Japanese, and any discrepancy in interpretation between the Japanese version and the translated version arises, the Japanese version shall prevail.