I will build a custom web calculator for your website


About this gig
Need a custom calculator or interactive tool for your website?
I will build a clean, responsive web calculator using HTML, CSS, and JavaScript based on your formulas, business rules, or requirements.
I can create tools such as:
- Price and quote calculators
- ROI and savings calculators
- eGFR Calculator
- ACR Calculator
- BMI and health calculators
- Percentage and score calculators
- Unit converters
- Cost estimators
- Custom business calculators
- Simple interactive web tools
Your tool can include responsive design, input validation, custom formulas, conditional results, and styling that matches your website.
You will receive clean source code that can be added to a website or hosted as a standalone web page.
Please message me before ordering if your calculator requires complex logic or special functionality so I can confirm the best package.
Get to know Muhammad Yasir
Web and Tool Developer: HTML, JavaScript, API Integration
- FromPakistan
- Member sinceJul 2026
- Avg. response time1 hour
Languages
Urdu, Pashto, English
FAQ
What do you need from me to build the calculator?
Please provide the formula or calculation rules, required input fields, expected results, and any design preferences. A reference example is also helpful if available.
Will the calculator work on mobile devices?
Yes. All packages include responsive design so the calculator can work on desktop, tablet, and mobile screens.
Will I receive the source code?
Yes. You will receive the HTML, CSS, and JavaScript source code included with the package.
Can you match the calculator to my website design?
Yes. Custom styling is available in the Standard and Premium packages. Please provide your website URL, colors, or design reference.
Can you create any type of calculator?
I can build many browser-based calculators and interactive tools. Please contact me before ordering if the project involves complex calculations or unusual functionality.
Can you install it on my website?
I can provide the finished code and basic instructions for adding it to your website. If you need installation or platform-specific integration, please contact me first.

