@parsa123 1 Joule = 1 kg·m²/s²; Planck’s constant is in Joule-hertz^−1 or Joule-seconds. So J * s = 1 kg·m²/s - which is in line with what we currently have. I will close this suggestion for now, but if you have reference links or other rationale to add, feel free to resubmit another suggestion