Laser calculators

Wavelength and frequency

Easily convert your laser wavelength to frequency and laser frequency to wavelength with this free online calculator.

Average power and power density

Convert laser average power and energy per pulse to average power density/irradiance and average power with this online calculator. Works for both Gaussian and flat beam profiles.

Peak power and peak power density

Calculate laser peak power and peak power density for your pulsed laser from your energy per pulse or average power.

Energy density / Fluence

Input basic beam parameters about your laser and let our tool calculates its energy density in a second.

Aperture transmission

Calculate a laser beam transmission through an aperture with this free online calculator.

Beam divergence and diameter

Calculate your laser beam divergence (half-angle) and diameter easily with this online calculator.

Spot size and beam waist

This calculator gives you the laser spot size and laser beam waist values based on the beam diameter at lens, wavelength, and other parameters you input.

Gaussian Beam diameter converter

Convert your aperture diameter from one laser beam diameter definition to another one.

Laser Frequency calculator

Calculate your laser frequency and repetition rate from your average power and energy per pulse.

Gaussian Beam parameters

Calculate your Gaussian laser beam parameters: beam divergence (half-angle), beam diameter, Rayleigh range, wavefront radius of curvature, and more.

Fiber numerical aperture

Calculate your laser's fiber numerical aperture or maximum incident angle.