Input interpretation
potassium | nuclear radius
Result
3.202 fm (femtometers)
Unit conversions
3.202×10^-15 meters
1.261×10^-13 inches
Comparisons as radius
≈ 1.1 × classical electron radius ( ≈ 2.8×10^-15 m )
≈ 3.8 × proton root-mean-square charge radius ( ≈ 8.4×10^-16 m )