Interactive Laser Beam Expander Calculator How to Use This Calculator This calculator determines the properties of a laser beam after passing through a two-lens beam expander. Enter the Wavelength (λ)

Pressure Calculator P = F / A Solve for Pressure (P) Solve for Force (F) Solve for Area (A) Pressure (P) Pascals (Pa) Kilopascals (kPa) Atmospheres (atm) Bar PSI Force

E=mc² Calculator (Mass-Energy Equivalence) Calculator Instructions Theory & Formulas Mass (m): kg (kilograms) g (grams) mg (milligrams) µg (micrograms) amu (atomic mass units) lb (pounds) oz (ounces) Calculate Energy How

Interactive Aperture Area Calculator How to Use This Calculator This calculator determines the light-collecting area of a circular aperture, such as a telescope lens or mirror. It can also account