This calculator allows you to convert from Pound-force square second/foot to Ton (assay) (US) and in a reverse direction. To convert from Pound-force square second/foot to Ton (assay) (US), enter the amount of Pound-force square second/foot into the first input and to convert from Ton (assay) (US) to Pound-force square second/foot, enter the amount of Ton (assay) (US) into the second input.