Education & Reference Tools

Study helpers and reference tools for science and school — all free and online.

All Hardware & Screen Brain & Cognitive Productivity & Utility Text & Social Games & Fun Education & Reference Media & Arts

Interactive Periodic Table of Elements

Explore all 118 chemical elements with our interactive periodic table. View atomic mass, electron configuration, melting points, and more. Perfect for students and chemistry enthusiasts.

Molar Mass Calculator - Calculate Molecular Weight

Calculate the molar mass of any chemical compound instantly. Enter a formula like H2O or NaCl and get precise molecular weight in g/mol with element breakdown.

Chemical Equation Balancer - Stoichiometry Calculator

Balance chemical equations instantly using our free online calculator. Get correct stoichiometric coefficients for any reaction. Supports parentheses and polyatomic ions.

Final Grade Calculator - What Do I Need on My Final?

Calculate what score you need on your final exam to get your desired grade. Free online tool for students to plan their study goals.

GPA Calculator - Multi-Scale Grade Point Average Calculator

Free GPA calculator supporting US 4.0/4.3, Canada, Australia, China, UK scales. Create custom grading scales, import/export settings, and calculate with grades or scores.

The Cosmic Forge - Star Evolution Simulator

A romantic cosmic clicker game. Forge elements from Hydrogen to Gold through the life and death of a star.

Education & Reference Tools

Free education tools: periodic table, molar mass, equation balancer, GPA and grade calculators. Study helpers and reference tools for science and school — all free and online.