Free online calculators for finance, health, education, construction and everyday decisions.
CalcRange is a free, mobile-friendly online calculator platform for finance, health, education, construction and everyday decisions.
The platform requires no registration and is designed for users in Pakistan, India and worldwide.
- EMI Calculator — calculate monthly loan payments and total interest
- BMI Calculator — estimate Body Mass Index using height and weight
- GPA Calculator — calculate and plan academic GPA
- Zakat Calculator — calculate 2.5% Zakat on eligible wealth
- Concrete Calculator — estimate concrete volume and material requirements
- Date Difference Calculator — calculate the time between two dates
- Free to use
- No registration required
- Mobile and desktop friendly
- Instant calculation results
- Formulas and understandable explanations
- Tools for Pakistan, India and global users
CalcRange uses WordPress for content management and HTML, CSS and JavaScript for its interactive calculators and responsive interface.
CalcRange was started in June 2026 and is under active development. Existing calculators are regularly improved, and new tools are added based on practical user needs.
Feedback is welcome. Use the repository's Issues section to:
- Suggest a new calculator
- Report an incorrect result
- Recommend a usability improvement
- Report a mobile or browser problem
This repository contains public documentation, links and the roadmap for CalcRange. The production website's source code is not currently published as open source.
CalcRange was created by Muhammad Umar Draz, an SEO and digital marketing specialist from Faisalabad, Pakistan.
Visit the website: https://calcrange.com/