What is OLCalc?
OLCalc is being developed as a collection of browser-based calculators and practical learning resources for students, educators, and anyone who needs help with everyday mathematics. Our aim is to pair useful tools with clear instructions and examples, so visitors can understand not only a result but also how to obtain and interpret it.
What you can find here
Online calculators
Interactive tools for supported mathematical, graphing, scientific, and everyday calculation tasks. Each tool page should describe its actual features and limitations.
Practical guides
Step-by-step explanations, worked examples, and definitions intended to help users learn a method and avoid common mistakes.
Our approach
- Clarity: explain what a tool does and how to use it.
- Practical value: prioritize working functionality and examples that can be checked.
- Transparency: identify important limitations and explain relevant data practices honestly.
- Usability: make pages straightforward to navigate on desktop and mobile devices.
Independent project and trademarks
OLCalc is an independent project. References to third-party products or brand names are used only where needed to describe a relevant tool, use case, or compatibility. Unless a page explicitly says otherwise, OLCalc is not affiliated with, sponsored by, or endorsed by the owners of those brands.
Contact us
Have a question, found an error, or want to suggest a tool? Please visit our Contact page or email wangzhifeng.wzf@gmail.com.