optics Calculators
Focal Length Calculator
Find the focal length of a lens given the distance to the object and the distance to the formed image. Essential for photographers, opticians, and physics students working with thin-lens optics.
Magnification Calculator
Compute the optical magnification of a lens or mirror by comparing the image height to the object height. Use it to determine whether a lens enlarges, reduces, or inverts an object.
Snell's Law Calculator
Determine the refraction angle when light passes between two media of different refractive indices using Snell's Law. Useful in optics coursework, lens design, and understanding phenomena like rainbows and fiber optics.
Critical Angle Calculator
Calculate the critical angle beyond which light undergoes total internal reflection at the boundary between a denser and a rarer medium. Essential for fiber optics, prism design, and understanding optical phenomena.
Numerical Aperture Calculator
Calculate the numerical aperture (NA) of an optical fiber from the refractive indices of its core and cladding. NA determines light-gathering ability and the maximum acceptance angle of the fiber.
F-Number Calculator
Compute the f-number (f-stop) of a lens by dividing its focal length by the aperture diameter. Use it when selecting lenses, comparing lens speed, or setting exposure in photography.
Diffraction Grating Calculator
Find the diffraction angle for any order of light passing through a grating using the grating equation. Ideal for optics lab work, spectroscopy setups, and physics coursework.
Brewster's Angle Calculator
Calculate Brewster's angle — the incidence angle at which reflected light is perfectly polarized — given two media's refractive indices. Essential for optics design, laser engineering, and polarization experiments.
Optical Power Calculator
Convert a lens's focal length in centimetres to optical power in diopters instantly. Use it to understand eyeglass prescriptions, compare lenses, or solve optics problems.
Depth of Field Calculator
Compute the total depth of field for any camera and lens combination using focal length, f-number, focus distance, and circle of confusion. Use it to plan sharp focus zones before a shoot.
Lens Focal Length Calculator
Compute the focal length of any thick or thin lens from its refractive index, surface curvatures, and center thickness using the lensmaker's equation. Essential for optical designers, physics students, and DIY telescope builders.
Optical Magnification Calculator
Find the total magnification of a microscope or telescope from objective and eyepiece focal lengths. Useful for students, lab technicians, and amateur astronomers configuring optical instruments.
Fresnel Reflection Calculator
Calculate the percentage of light reflected at an optical interface for s- or p-polarization using the Fresnel equations. Indispensable for anti-reflection coating design, laser optics, and photography filter analysis.
Fiber Optic Parameters Calculator
Compute the numerical aperture, acceptance cone half-angle, or critical angle of an optical fiber from its core and cladding refractive indices. Used by fiber installers, photonics students, and optical engineers.
Telescope Resolution Calculator
Determine the angular resolution, light-gathering power, or limiting magnitude of a telescope based on aperture and wavelength. Perfect for amateur astronomers comparing instruments or planning observations.
Prism Deviation Calculator
Determine how much a glass prism bends a light ray using its apex angle, refractive index, and incident angle. Use this when studying optics, designing spectrometers, or verifying Snell's law experiments.
Laser Beam Parameters Calculator
Compute key Gaussian laser beam properties — Rayleigh range, half-angle divergence, or beam radius at any distance from the waist. Essential for laser system design, focusing optics, and beam alignment tasks.
Optical Magnification Calculator
Find the total magnification of a microscope or telescope from objective and eyepiece focal lengths. Use it when selecting lens combinations or checking whether a setup meets a target magnification.
Diffraction Limit Calculator
Calculate the smallest resolvable spot or feature that an optical system can distinguish, based on wavelength and aperture. Use it when designing cameras, telescopes, or microscopes where resolution is critical.
Laser Beam Divergence Calculator
Compute laser beam spot radius at any propagation distance, accounting for beam quality factor M². Use it when planning laser delivery systems, safety exclusion zones, or long-range targeting setups.
Depth of Field Calculator
Determine the depth of field, hyperfocal distance, and near/far focus limits for any lens and camera combination. Ideal for photographers choosing aperture and focus distance to keep subjects sharp.
Snell's Law Refraction Calculator
Calculate the refraction angle when light passes between two media using Snell's Law. Use it in optics coursework, lens design, or to find the critical angle for total internal reflection.
Interference Fringe Calculator
Compute the fringe spacing in a Young's double-slit or similar two-beam interference experiment. Useful for optics labs, physics coursework, and verifying experimental setups.
Polarization Calculator
Calculate the intensity of light transmitted through a polarizer and analyzer using Malus's Law. Perfect for optics students and engineers designing polarized optical systems.
Telescope Magnification Calculator
Calculate the magnification, resolution, and light-gathering power of any telescope from its objective focal length, eyepiece, and aperture. Ideal for astronomers choosing eyepieces for a target.
Depth of Field Calculator
Calculate the depth of field, hyperfocal distance, and sharp focus range for any camera setup. Use this when planning shots where controlling foreground-to-background sharpness is critical.
Fiber Optic Numerical Aperture Calculator
Compute the numerical aperture (NA) and acceptance angle of an optical fiber from its core and cladding refractive indices. Essential for fiber optic system design, light-coupling efficiency analysis, and telecom engineering.
Laser Beam Divergence Calculator
Calculate how a laser beam's spot radius grows with propagation distance, accounting for beam quality factor M². Use this when designing laser systems, targeting applications, or evaluating beam collimation quality.
Prism Dispersion Calculator
Calculate the deviation angle of light passing through a prism given its apex angle, incident angle, and refractive index. Useful for designing spectrometers, understanding chromatic dispersion, and optics coursework.
Interferometer Fringe Calculator
Calculate fringe spacing and visibility in optical interferometers based on wavelength, beam separation, and source coherence length. Used in precision metrology, optical testing, and physics experiments.
Optical Power Budget Calculator
Determine whether a fiber optic link has enough signal margin by calculating the power budget. Use it when designing or troubleshooting single-mode or multimode fiber runs.
Hologram Diffraction Calculator
Find the diffraction angle of light leaving a holographic grating for any order, wavelength, and incident angle. Useful for designing holographic optical elements, spectrometers, and display systems.
Thin Lens Focal Length Calculator
Compute the focal length of a thin lens from object and image distances, or find where an image forms for a known lens. Essential for optics lab work, camera design, and eyeglass prescription analysis.
Camera Depth of Field Calculator
Calculate how much of a scene will appear sharp in a photograph based on your lens, aperture, and focus distance. Use it when planning portrait, landscape, or macro shots to control background blur.
Interferometry Fringe Calculator
Calculate the fringe spacing produced when two coherent beams intersect at a given angle and wavelength. Use it when setting up laser interferometers, holographic recording setups, or optical metrology systems.
Polarization & Malus Law Calculator
Calculates transmitted light intensity after passing through one or more polarizers using Malus's Law. Use it when designing optical systems, analyzing polarized filters, or studying light attenuation in physics labs.
Optical Resolution Calculator
Determines the minimum resolvable distance between two point sources through a microscope or lens using the Rayleigh criterion. Essential for microscopists, optical engineers, and anyone specifying imaging system performance.
Fiber Optic Loss Calculator
Computes total optical power loss in a fiber optic link by summing cable attenuation, connector insertion loss, and splice loss. Use it when planning network infrastructure or verifying a fiber link's power budget.