Quantum Physics Calculators

Calculate photon energy, frequency, and wavelength using Planck's equation.

Find photon frequency from energy or wavelength and compare related photon values.

Calculate matter-wave wavelength from momentum, mass, and velocity.

Calculate minimum position or momentum uncertainty from the uncertainty principle.

Calculate rest mass energy from mass or mass from rest energy.

Calculate remaining quantity, initial quantity, half-life, or time for radioactive decay.

Calculate Lorentz factor from velocity or velocity from Lorentz factor.

Calculate photon wavelength from energy or frequency with meters, nanometers, and picometers.

Calculate photon momentum from wavelength or energy.

Analyze matter-wave wavelength, momentum, velocity, and energy estimates.

Use Planck's equation to calculate energy, frequency, or wavelength.

Calculate energy levels, box length, or quantum number approximation for a one-dimensional particle in a box.

Calculate hydrogen atom energy levels, transition energy, and emitted or absorbed photon wavelength.

Calculate Bohr orbit radius for hydrogen-like atoms.

Calculate electron transition energy and photon wavelength for hydrogen-like transitions.

Calculate quantum harmonic oscillator energy from angular frequency and quantum number.

Estimate tunneling probability through a rectangular potential barrier.

Calculate probability density from real and imaginary wave function amplitudes.

Calculate simple wave function phase, real value, wavelength, and frequency relationships.

Calculate electron momentum from velocity or de Broglie wavelength.

Calculate electron velocity from momentum, kinetic energy, or wavelength.

Convert between mass and equivalent energy using Einstein's equation.

Calculate half-life, remaining quantity, or time required for radioactive decay.

Estimate nuclear binding energy from mass defect, proton count, neutron count, and nuclear mass.

Calculate nuclear reaction Q-value from reactant and product masses.

Calculate dilated time, proper time, or velocity from relativistic time dilation.

Calculate total and kinetic relativistic energy from mass and velocity.

Calculate classical or relativistic particle momentum and reverse velocity estimates.

Check simple quantum number ranges, shell capacity, and orbital counts.

Calculate spin multiplicity, spin states, and basic spin angular momentum estimates.

Calculate photon energy, frequency, and wavelength using Planck's equation.

Find photon frequency from energy or wavelength and compare related photon values.

Calculate matter-wave wavelength from momentum, mass, and velocity.

Calculate minimum position or momentum uncertainty from the uncertainty principle.

Calculate rest mass energy from mass or mass from rest energy.

Calculate remaining quantity, initial quantity, half-life, or time for radioactive decay.

Calculate Lorentz factor from velocity or velocity from Lorentz factor.

Use a keyboard-friendly scientific calculator with trig, logs, powers, constants, and memory.

Calculate percentages, percent change, discounts, increases, and reverse percentages.

Calculate force, mass, or acceleration using Newton's second law.

Calculate the hypotenuse and area of a right triangle.

Calculate logarithms for any positive base and value.

Calculate powers and exponential values quickly.