Physics Calculator
Force, energy, speed, Ohm’s law.
Chemistry Calculator
Moles, molarity, ideal gas.
Biology Magnification
Image, actual size and magnification.
Periodic Table
All 118 elements, interactive.
Molecular Weight
Molar mass from any formula.
Electronegativity
Bond type from element pairs.
Center of Mass
Balance point of point masses.
Solution Dilution
C₁V₁ = C₂V₂ solver.
Population Growth
Exponential growth and decay.
Statistics
Mean, median, standard deviation.
Scientific Notation
Standard form conversion.
Pool Volume
Volume and salt dosing.
Free science calculators and tools
Explore physics, chemistry, and biology with this set of free science tools. Calculate forces and energy, work with moles and molarity, find molar masses, predict chemical bonds, run statistics on a dataset, and browse an interactive periodic table — all in your browser, with no sign-up.
Built for students and curious minds
These tools suit GCSE, A-level, and introductory college science, as well as anyone who needs a quick, reliable answer. They use standard SI units and recognised formulas. The periodic table and molecular weight calculator work hand in hand, and the chemistry calculator pairs with the dilution calculator for lab work.