Resolution Limit (Rayleigh)

Calculate Resolution Limit (Rayleigh) instantly with the exact formula and a worked example.

Resolution Limit (Rayleigh)

Wavelengthnm
Objective numerical aperture NA
Resolution limit
239.6429nm
Calculate Resolution Limit (Rayleigh) instantly with the exact formula and a worked example.
In micrometers
0.2396µm
Abbe limit λ/(2NA)
196.4nm
Useful magnification
700–1400×

More about: Resolution Limit (Rayleigh)

What it calculates

The “Resolution Limit (Rayleigh)” calculator computes Resolution limit in nm from 2 parameters: wavelength (nm), objective numerical aperture na.

A standard physics formula used in educational and engineering tasks.

Example calculation

With parameters Wavelength = 550 nm, Objective numerical aperture NA = 1.4 the result is 239.64 nm.

How to use

  1. Enter wavelength and objective numerical aperture na — each field above is adjustable with a slider.
  2. Resolution limit (nm) is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is Resolution Limit (Rayleigh) calculated?
The Resolution Limit (Rayleigh) calculator computes Resolution limit (in nm) from wavelength, objective numerical aperture na. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Resolution Limit (Rayleigh) calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.

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