Free browser-based calculators

Laser Toolkit

Six practical calculators for quick laser-planning estimates. Units and formulas are explicit, and every result is calculated locally in your browser.

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Planning estimates, not process guarantees. These idealized calculations do not account for beam profile, optical losses, machine dynamics, material response, or safety controls. Verify settings on your equipment and follow your established laser safety procedures.

Pulse energy

Convert average optical power and pulse rate into energy per pulse, with an optional ideal peak-power estimate.

Average power W Average optical output during marking. Pulse rate kHz Thousands of pulses each second. Pulse duration ns · optional Used only for an ideal rectangular-pulse peak estimate.

Spot energy density

Estimate nominal pulse energy per unit area using a uniform circular spot model.

Pulse energy µJ Energy delivered in one pulse. Spot diameter µm Use the same diameter convention as your optical data.

Pulse overlap

Estimate center spacing and geometric overlap between pulses along the scan direction.

Scan speed mm/s Commanded movement speed. Pulse rate kHz Thousands of pulses each second. Spot diameter µm Geometric diameter used for the overlap comparison.

Hatch overlap

Compare cross-scan hatch spacing with spot diameter using a geometric center-to-center model.

Spot diameter µm Geometric spot width. Hatch spacing µm Center-to-center distance between adjacent lines.

Raster time

Estimate ideal marked-motion time for a rectangular raster fill across one or more passes.

Scan width mm Distance marked along each line. Fill height mm Distance covered across the hatch. Hatch spacing µm Center-to-center line spacing. Scan speed mm/s Ideal constant speed along each line. Passes whole number Repeated full-area passes. Turnarounds, jumps, acceleration, and controller delays are omitted.

Power / speed scaling

Estimate the power required to preserve nominal line energy when changing scan speed.

Current power W Use calibrated average optical power, not a percentage. Current speed mm/s Speed associated with the current power. Target speed mm/s New speed to evaluate. Available maximum W · optional Shows a warning when the estimate exceeds this value.

Core relationships: energy = power ÷ rate, spacing = speed ÷ rate, and overlap = 1 − spacing ÷ diameter. Signed negative overlap is reported as a gap, not clamped.

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