Welcome to Sig Figs Calculator, your reliable online tool for mastering significant figures and scientific notation.
We created this site with one simple purpose: to make accurate sig fig calculations available to everyone — students, teachers, researchers, and professionals — without unnecessary complexity or distractions.
Our Mission
Our mission is to provide a free, easy-to-use, and educational platform where users can:
- Calculate the number of significant figures in any number.
- Round values to a chosen number of significant figures instantly.
- Understand the rules and logic behind significant figures through clear examples and explanations.
By combining a clean calculator interface with educational content, we aim to help users not only get quick results but also build confidence in applying sig fig rules correctly in their own work.
Who We Are
This site was created and is maintained by Anas Saleem, who has a deep interest in mathematics, problem-solving, and educational tools. With a passion for making learning easier and more engaging, Anas built Sig Figs Calculator to bridge the gap between theory and practice. His goal is to share his love for maths by creating tools that help others understand concepts clearly and apply them confidently.

Who We Serve
- Students: Checking homework, lab reports, and assignments.
- Teachers: Demonstrating examples in classrooms.
- Researchers & Professionals: Ensuring accuracy in data reporting and technical documentation.
- Anyone Curious: Learning the basics of scientific notation and precision in measurement.
Why Sig Figs Matter
Significant figures are essential in science, mathematics, and engineering because they show the precision of a measurement or calculation. Getting them right can mean the difference between correct results and misleading conclusions. That’s why our tool is designed to be simple, accurate, and trustworthy.
Our Commitment
- Accuracy: We test and update our calculator to ensure reliable results.
- Accessibility: The tool is free to use, works across devices, and requires no sign-ups.
- Transparency: Explanations are included so you know why the calculator gives a certain answer.
- Trust: We don’t store your inputs — everything runs in real time in your browser.
If you have suggestions, feedback, or ideas for improvement, we’d love to hear from you. Head over to our contact page to get in touch.
Thank you for choosing Sig Figs Calculator as your trusted resource for significant figures and scientific notation.
