KnowraPlanck lengthLinked fromLinked fromThe 9 pages that link to Planck length, each with the reason it gives.All 9Broader topic 3Related 6Planck constantRelated: It illustrates a derived scale built using ℏ, rather than another name for h.Order of magnitudeRelated: Its scale, about 10⁻³⁵ metres, contrasts sharply with everyday lengths.Compton wavelengthRelated: It equals the Compton wavelength of a particle whose mass is the Planck mass, up to convention.Holographic principleRelated: Black-hole entropy counts area in units set by this quantum-gravity scale.Planck epochRelated: It indicates the scale at which quantum-gravity effects are expected to matter.Quantum foamRelated: It marks the scale where the foam picture places fluctuations of spacetime.