Photon Energy Calculator
Calculate photon energy from frequency or wavelength
OR
h = 6.626e-34 J·s (Planck's constant)
c = 2.998e8 m/s (speed of light)
Formulas Used
E = hf (energy from frequency)
E = hc/λ (energy from wavelength)
c = fλ (wave equation)
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: University Physics
by Young & Freedman
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.