1,001hPa=..........Pa 256Pa=.....N/m 0,238Kn=............N  

1,001hPa=1,001*100Pa=100,1Pa   256Pa=256N/m²   0,238kN=0,238*1000N=238N

1,001hPa= 100,1 Pa (1hPa = 100Pa) 256Pa=256 N/m^2 (1Pa = 1N/m^2) 0,238kN= 238N (1kN = 1000N)