optics Calculators

Focal Length Calculator

Calculate the focal length of a lens using object and image distances

Calculate optical magnification from object and image parameters

Calculate refraction angles using Snell's law of refraction

Calculate the critical angle for total internal reflection

Calculate numerical aperture of optical fibers or lenses

Calculate f-number (f-stop) from focal length and aperture diameter

Calculate diffraction angles for gratings using the grating equation

Calculate Brewster's angle for polarization by reflection

Calculate optical power in diopters from focal length

Calculate depth of field for photography and imaging

Calculate the focal length of a lens using the lensmaker's equation with refractive index and curvature radii

Calculate total magnification for compound optical systems like microscopes and telescopes

Calculate numerical aperture and resolving power of optical systems including microscope objectives

Calculate depth of field, hyperfocal distance, and focus range for photography and cinematography

Calculate diffraction angles, wavelengths, and grating spacing using the grating equation

Calculate Fresnel reflection and transmission coefficients for optical interfaces

Calculate numerical aperture, acceptance angle, and propagation characteristics of optical fibers

Calculate angular resolution, light gathering power, and limiting magnitude for telescopes

Calculate light ray deviation, minimum deviation, and critical angle for optical prisms

Calculate Gaussian beam waist, divergence angle, Rayleigh range, and beam quality factors