Science Tools
Free calculators for chemistry and physics
These tools handle the recurring computations of school and lab science: work out a molar mass, look up an element, round to the correct significant figures, convert scientific notation, or solve a kinematics problem. Each gives an instant, shareable result in your browser.
Browse Tools
Molar Mass Calculator
Compute molar mass from a chemical formula.
Interactive Periodic Table
Interactive periodic table with element data.
Significant Figures Calculator
Round and count significant figures correctly.
Scientific Notation Converter
Convert to and from scientific notation.
Physics Kinematics Calculator
Solve constant-acceleration kinematics problems.
Frequently asked questions
Are these accurate enough for coursework?
Yes. They use standard constants and formulae (atomic weights, SI units) suitable for school and undergraduate work. For published research, verify against primary references.
Do the tools handle significant figures?
Yes — the significant-figures calculator follows standard rounding rules, and other tools let you control precision.