1.3.5 Safe to install
Desktop Calculator C: A Simple Yet Powerful Tool for Everyday Calculations

Desktop Calculator C offers a user-friendly interface and efficient functionality, making it an excellent choice for anyone in need of a reliable calculator on their desktop.
This free calculator application serves as an effective tool for both home and office use, offering a range of features designed to facilitate various mathematical calculations.
Features:
- Independent Memory
- Square Root Function
- Change Sign (+/-)
- Tax Calculation
- Percent Calculation
- Constant Calculation
- Grand Total Memory
- Slide Switch for Rounding Options
- Calculation Result History
Tax Calculation:
- To determine the price including tax for a total of 1000: Input 1000 followed by [TAX+].
- To find the price excluding tax from a total of 1080: Input 1080 followed by [TAX-].
* The current tax rate can be confirmed by pressing the [TAX+] button.
Slide Switch (Rounding):
- F: Floating Decimal
- CUT: Values are truncated to the specified number of decimal places.
- UP: Values are rounded up according to the selected decimal settings.
- 5/4: Values are approximated; digits 0-4 are cut off while 5-9 are rounded up, based on the current settings.
- 4,3,2,1,0: Designates the exact number of decimal places.
Percent Calculation:
- Add 10%: Input 1000 [×] 10 [%] [+].
- Subtract 10%: Input 1000 [×] 10 [%] [-].
The formula for determining markup percentage is: Markup% = (Markup Price - Cost) / (Markup Price).
Grand Total Memory:
The result of any calculation performed after pressing the “=” key is automatically stored in the Grand Total Memory. This value can be recalled using the “GT” key, which functions similarly to the “MR” key for memory retrieval.
Constant Calculation:
To register a constant, press any operation key (“+”, “-”, “×”, “÷”) twice. The "K" indicator will be displayed to confirm that constant calculation is active. It alters the sequence of input values; for instance, entering 4--3 will yield a result of 3-4.
* Please note that there are additional paid features available within the app.
Overview
Desktop Calculator C - Excellent & Convenient is a Freeware software in the category Business developed by Takahiro Kusano.
The latest version of Desktop Calculator C - Excellent & Convenient is 1.3.5, released on 01/08/2025. It was initially added to our database on 01/08/2025.
Desktop Calculator C - Excellent & Convenient runs on the following operating systems: iOS.
Users of Desktop Calculator C - Excellent & Convenient gave it a rating of 2 out of 5 stars.

Pete Milner
I'm Pete, a software reviewer at UpdateStar with a passion for the ever-evolving world of technology. My background in engineering gives me a unique insight into the intricacies of software, allowing me to provide in-depth, knowledgeable reviews and analyses. Whether it's the newest software releases, tech innovations, or the latest trends, I'm here to break it all down for you. I work from UpdateStar’s Berlin main office.
Latest Reviews by Pete Milner
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