Covalent Radius Calculator
Explore covalent radii and predict bond lengths for different bond orders.
C
67 pm
O
57 pm
Predicted Bond Length
124 pm
(1.24 A)
Bond length = r(C) + r(O) = 67 + 57 = 124 pm
About Covalent Radii
Covalent radius is defined as half the distance between two identical atoms bonded together. Bond lengths can be predicted by adding the covalent radii of the bonded atoms. Multiple bonds (double, triple) are shorter due to increased electron density between nuclei.