THEORETICAL DEPTH AT ALTITUDE - METRIC (UPDATED VERSION)
	Surface Atmospheric Pressure (in atm)
	at Various Altitudes (of meters above sea level)
	300	600	900	1200	1500	1800	2100	2400	2700	3000
	0.9649	0.9309	0.8978	0.8657	0.8345	0.8042	0.7749	0.7464	0.7187	0.6919
Actual
Depth	Theoretical Ocean Depth (in msw)
(mfw)	at Various Altitudes (of meters above sea level)
	300	600	900	1200	1500	1800	2100	2400	2700	3000
0	0	0	0	0	0	0	0	0	0	0
2	2	2	2	2	2	2	3	3	3	3
4	4	4	4	4	5	5	5	5	5	6
6	6	6	7	7	7	7	8	8	8	8
8	8	8	9	9	9	10	10	10	11	11
10	10	10	11	11	12	12	13	13	14	14
12	12	13	13	13	14	15	15	16	16	17
14	14	15	15	16	16	17	18	18	19	20
16	16	17	17	18	19	19	20	21	22	23
18	18	19	20	20	21	22	23	23	24	25
20	20	21	22	22	23	24	25	26	27	28
22	22	23	24	25	26	27	28	29	30	31
24	24	25	26	27	28	29	30	31	33	34
26	26	27	28	29	30	31	33	34	35	37
28	28	29	30	31	33	34	35	37	38	39
30	30	31	33	34	35	36	38	39	41	42
32	32	33	35	36	37	39	40	42	43	45
34	34	36	37	38	40	41	43	44	46	48
36	36	38	39	40	42	44	45	47	49	51
38	38	40	41	43	44	46	48	50	51	53
40	40	42	43	45	47	48	50	52	54	56
Ocean
Stop
Depth	Safety/Emergency Decompression Stop Depth (in mfw)
(msw)	at Various Altitudes (of meters above sea level)
	300	600	900	1200	1500	1800	2100	2400	2700	3000
4.0	4.0	3.8	3.7	3.6	3.4	3.3	3.2	3.1	3.0	2.8
6.0	5.9	5.7	5.5	5.3	5.1	5.0	4.8	4.6	4.4	4.3