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Should I remove OpalCalc?

What percent of users and experts removed it?
6% remove it94% keep it
Overall Sentiment
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How common is it?
United States Rank #43,585
Reach 0.0007%



OpalCalc is a program developed by Skytopia. The main program executable is OpalCalc.exe. The software installer includes 4 files and is usually about 948.09 KB (970,845 bytes). In comparison to the total number of users, most PCs are running the OS Windows 10 as well as Windows 7 (SP1). While about 87% of users of OpalCalc come from the United States, it is also popular in Canada and India.

Program detailsProgram details

URL: www.skytopia.com/software/opalcalc
Installation folder: C:\Calculators\OpalCalc
Uninstaller: C:\Program Files3\INSTAL~1\{A54A5~1\Setup.exe /remove /q0
Estimated size: 948.09 KB
Language: English (United States)

Program filesFiles installed by OpalCalc

Program executable:OpalCalc.exe
Path:C:\Program Files\OpalCalc\OpalCalc.exe
Additional files:
  • OpalCalc.exe - OpalCalc
  • Antlr3.Runtime.dll - ANTLR3.Runtime.NET
  • Jint.dll - Jint
  • uninstall.exe

How do I remove OpalCalc?

You can uninstall OpalCalc from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8/10: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program OpalCalc, click it, and then do one of the following:
    • Windows Vista/7/8/10: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove OpalCalc.

Win 10 57%
Win 7 7%
Uninstall it 6%
Keep it 94%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 10 57.14%
Windows 7 35.71%
Windows XP 7.14%
Which OS releases does it run on?
Windows 10 Pro 35.71%
Windows 7 Home Premium 14.29%
Microsoft Windows XP 7.14%
Windows 10 Home 7.14%
Windows 7 Home Basic 7.14%
Windows 7 Professional 7.14%

Distribution by countryGeography

86.96% of installs come from the United States
Which countries install it?
  United States 86.96%
  Canada 4.35%
  India 4.35%
  Lithuania 4.35%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Dell 45.45%
Acer 27.27%
Sony 9.09%
Lenovo 9.09%
Common models
Dell Inspiron 530s 30.77%
TOSHIBA Satellite L755 23.08%
Acer Aspire 7741 15.38%
Sony VPCEB34EN 7.69%
Packard Bell Easynote TE6... 7.69%
LENOVO 224362G 7.69%


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