atm	N/m2	bars	kg/cm2	gm/cm2	mm Hg	in Hg	lb/in2
		Pa			cm H2O		"Hg	psi
1 atmosphere	1	1.013×105	1.013	1.033	1033	760	29.92	14.7
1 Newton (N)/m2 or Pascal (Pa)	.9869×10-5	1	10-5	1.02×10-5	.0102	.0075	.2953×10-3	.1451×10-3
1 bar	.9869	105	1	1.02	1020	750.1	29.53	14.51
1 kg/cm2	.9681	.9807×105	.9807	1	1000	735	28.94	14.22
1 gm/cm2 (1 cm H20)	968.1	98.07	.9807×10-3	.001	1	.735	.02894	.01422
1 mm Hg	.001316	133.3	.001333	.00136	1.36	1	.03937	.01934
1 in Hg	.0334	3386	.03386	.03453	34.53	25.4	1	.491
1 lb/in2 (psi)	.06804	6895	.06895	.0703	70.3	51.7	2.035	1
Abridged adaptation from NOAA