1 ch (chain) is equal to 380,152,397,674.6826 a₀ (Bohr radius). To convert from chain to Bohr radius, multiply by 380,152,397,674.6826 or divide by 0.000000000002630523984898696.
Three Hundred Eighty Billion One Hundred Fifty-Two Million Three Hundred Ninety-Seven Thousand Six Hundred Seventy-Four Point Six Eight Two Six Bohr Radius