Interactive Tools
Calculators, simulators, and reference tools for physics
Cosmology Calculator
Calculate cosmic distances, lookback times, and comoving volumes using Planck 2018 cosmological parameters.
Black Hole Calculator
Compute Schwarzschild radius, Hawking temperature, entropy, ISCO, and evaporation time for any black hole mass.
Physics Constants Explorer
Browse and search 40+ fundamental physical constants with values, units, and uncertainties.
Unit Converter
Convert between physics units: energy (eV, J, erg), length (nm, Angstrom, parsec), mass (amu, MeV/cĀ²), and more.
Wave Simulator
Visualize wave superposition, constructive and destructive interference with adjustable amplitude, frequency, and wavelength.
Projectile Motion Simulator
Launch projectiles with adjustable angle, velocity, and gravity. See real-time trajectory, max height, and range.
Plasma Physics Explorer
PlasmaPy-powered simulator for Debye shielding, particle orbits, dispersion relations, and plasma regimes.