PlotParticleCalc turns tricky quantum box problems into easy steps. Plot where a particle is likely to be and compare energy levels at a glance. Switch between infinite and finite wells to see how barriers change behavior. Explore many-particle cases with fermions or bosons and watch how filling rules shape energy. Check the wavefunction value at any point, estimate box size for a target energy, or infer mass from measured spectra. Resize systems to feel nano-scale effects and see levels shift. Clear visuals and quick inputs help you learn faster and design smarter. Perfect for class, lab, and projects.