Calculator
Physics for students
Physics, finally clear.
Plain-English explanations, worked examples and free calculators for students studying physics at school, college and beyond.
Calculators
Calculator
Free fall calculator
Calculator
Kinetic and potential energy calculator
Calculator
Hooke’s law calculator
Calculator
Ohm’s law calculator
Calculator
Series and parallel resistance calculator
Calculator
Wave speed, frequency and wavelength calculator
Calculator
Snell’s law calculator
Calculator
Density calculator
Calculator
Specific heat capacity calculator
Calculator
Half-life calculator
The periodic table of topics
Study guide
Physics Formula Sheet
A printable physics formula sheet: motion, forces, energy, momentum, circular motion, waves, electricity and light, with symbols, units and worked guides.
Independent
Our coverage is never paid for. Advertisers do not choose or review what we publish.
Sourced
We check facts against primary sources and official guidance, and list them on every guide.
Kept current
We revisit guides when facts, prices or rules change, and date every update.