Optics and light Calculators

Angular Resolution Calculator The angular resolution calculator finds out the angular resolution of a lens. Aperture Area Calculator The aperture area calculator helps you to compute the aperture area of a lens. Binoculars Range Calculator With this binoculars range calculator, you can find the distance to the object if you know its height. Blackbody Radiation Calculator Calculate the spectral radiance of a blackbody in watts or photons per second using this blackbody radiation calculator. Bragg's Law Calculator With this Bragg's law calculator, you can compute the angle of an incident X-ray for which the reflected wave from a crystal has the maximum intensity. Brewster's Angle Calculator With this Brewster's angle calculator, you can estimate the angle at which reflected light will be perfectly polarized. Contact Lens Vertex Calculator Find out what power contact lens will fit you using this contact lens vertex calculator! Diffraction Grating Calculator Diffraction grating calculator analyzes what happens when a light ray meets a surface with multiple apertures. Diopter Calculator The diopter calculator efficiently determines the optical power of a lens in diopters using its focal length. Distance to Horizon Calculator Learn the geometry of horizons with our distance to the horizon calculator: on Earth or anywhere else in the Solar System! Earth Curvature Calculator The Earth curvature calculator lets you find the distance from you to the horizon, as well as the height of an object that is partially hidden behind it. Index of Refraction Calculator If you need to find the index of refraction of any substance, the index of refraction calculator is here to help you. Laser Beam Divergence Calculator Our laser beam divergence calculator will tell you exactly how much your beam will expand! Laser Beam Expander Calculator Our laser beam expander calculator will teach you everything you need to know about these simple devices. Laser Beam Spot Size Calculator Our laser beam spot size calculator will find out how small a laser beam can be. Laser Brightness Calculator With our laser brightness calculator, you can find the radiance of a gaussian beam or compare two different lasers to see which one is brighter. Laser Linewidth and Bandwidth Calculator With our laser linewidth and bandwidth calculator, you will learn how much your laser pointer deviates from an ideal monochromaticity. Lens Maker Equation Calculator The lens Maker Equation Calculator finds out the focal length of a specific lens. Lumen Calculator (Lumen to Lux to Candela) The Lumen calculator converts between lumens, lux, and candelas. Lux to Foot Candles Converter With our easy-to-use converter, lux to foot candles conversion will never again cause you any problems! Malus Law Calculator With this Malus law calculator, you can find the intensity of light that passes through the polarizer, taking into account the direction of its initial polarization. Mirror Equation Calculator The mirror equation calculator helps you find the unknown among the object position, image position, and focal length of a mirror. Optical Density Calculator This tool allows you to calculate the optical density from the incident light intensity and transmitted light intensity. Radar Horizon Calculator Find how far you can see with a radar with our radar horizon calculator. Snell's Law Calculator Use the Snell's law calculator to analyze the refraction of a ray. Speed of Light Calculator Our speed of light calculator can help you to calculate the distance light can travel in a fixed time. Telescope Field of View Calculator If you want to know how wide is your window on the stars, our telescope field of view calculator is the right tool for you! Telescope Magnification Calculator Use this telescope magnification calculator to estimate the magnification, resolution, brightness, and other properties of the images taken by your scope. Thin Lens Equation Calculator With this thin lens equation calculator, you can find the focal length of your lens. Thin-Film Optical Coating Calculator This thin-film optical coating calculator will calculate the optical path difference and reflectivity at the coating interface.