How to Make a Command Prompt Calculator

Co-authored by Luigi Oppido

Last Updated: December 16, 2023

Making calculations using Windows calculator can get very tedious. Creating your own Command prompt calculator will make your life much easier.

Steps

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Click the Start menu and type "notepad". This will be the first option.
2
Copy the following code. Highlight the entire code, right-click it, and click Copy.
- @echo off
- :start
- Echo Press 1 for Addition
- echo Press 2 for Subtraction
- echo Press 3 for Multiplication
- echo Press 4 for Division
- echo Press 5 to Quit
- set /p type=
- if %type%==1 goto a
- if %type%==2 goto b
- if %type%==3 goto c
- if %type%==4 goto d
- if %type%==5 goto e
- :a
- echo Addition
- echo Please choose the 2 numbers you wish to add
- set /p num1=
- set /p num2=
- echo %num1%+%num2%?
- pause
- set /a Answer=%num1%+%num2%
- echo %Answer%
- pause
- goto start
- :b
- echo Subtraction
- echo Please choose the 2 numbers you wish to subtract
- set /p num1=
- set /p num2=
- echo %num1%-%num2%?
- pause
- set /a Answer=%num1%-%num2%
- echo %Answer%
- pause
- goto start
- :c
- echo Multiplication
- echo Please choose the 2 numbers you wish to multiply
- set /p num1=
- set /p num2=
- echo %num1%*%num2%?
- pause
- set /a Answer=%num1%*%num2%
- echo %Answer%
- pause
- goto start
- :d
- echo Division
- echo Please choose the 2 numbers you wish to divide
- set /p num1=
- set /p num2=
- echo %num1%/%num2%?
- pause
- set /a Answer=%num1%/%num2%
- echo %Answer%
- pause
- goto start
- :e
- echo. Done!
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Right-click the empty area in the Notepad and click Paste.
4
Save the file. Click File, and then click Save As....
- Change the "Save as type" box to "All Files"
- Type "anything.bat" into file name and click "Save".
This will open it. You'll see a window with listed instructions.
Your answer will be displayed.

Community Q&A

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Question

Do I save this code on the desktop?

Community Answer

You can, yes.

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Question

Why are the decimal places not shown for division?

Community Answer

The set /a command (used for doing the mathematical operations) cannot display decimal places, so it rounds it down in all cases.

Thanks! We're glad this was helpful.
Thank you for your feedback.
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Question

Step 4 is done. What do we have to do in step 5?

Community Answer

Try it out!

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Thank you for your feedback.
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Not Helpful 2 Helpful 11