Nuclear Radius Calculator

Calculate nuclear dimensions using the empirical radius formula

Common values: 1.2 fm (charge), 1.25 fm (matter), 1.3 fm (skin)

Nuclear Radius Formula

Empirical Formula: R = r₀ × A^(1/3)

where:

  • R = nuclear radius
  • r₀ ≈ 1.2-1.3 fm (experimentally determined constant)
  • A = mass number (protons + neutrons)
  • 1 fm (femtometer) = 10^-15 m

This formula shows that nuclear volume is proportional to A, meaning nuclear density is approximately constant.