Young's Double-Slit
Calculate Young's Double-Slit instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.
Young's Double-Slit
λ, nm
Slit spacing d, µm
Screen distance L, m
Fringe spacing, mm
11
More about: Young's Double-Slit
What it calculates
The “Young's Double-Slit” calculator computes Fringe spacing, mm from 3 parameters: λ, nm, slit spacing d, µm, screen distance l, m.
A standard physics formula used in educational and engineering tasks.
Example calculation
With parameters λ, nm = 550, Slit spacing d, µm = 100, Screen distance L, m = 2 the result is 11.
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.