mH2O to ftH2O, bar, psi and inHg Conversion Table

Look up a liquid level in metres of water column to find the conversion value in feet of water, bar, pounds per square inch or inches of mercury.

Alternatively you can use the pressure unit converter to calculate the equivalent metres of water gauge value in other units.

The inHg pressure units shown below are for mercury at 0°C, (32°F). The mH₂O and ftH₂O pressure units shown below are for water at 4°C (39.2°F).

mH₂O Conversion Table

mH2O	ftH2O	bar	psi	inHg
1	3.28	0.098	1.42	2.896
2	6.56	0.196	2.84	5.792
3	9.84	0.294	4.27	8.688
4	13.12	0.392	5.69	11.58
5	16.40	0.490	7.11	14.48
6	19.69	0.588	8.53	17.38
7	22.97	0.686	9.96	20.27
8	26.25	0.785	11.38	23.17
9	29.53	0.883	12.80	26.06
10	32.81	0.981	14.22	28.96
11	36.09	1.079	15.65	31.85
12	39.37	1.177	17.07	34.75
13	42.65	1.275	18.49	37.65
14	45.93	1.373	19.91	40.54
15	49.21	1.471	21.34	43.44
16	52.49	1.569	22.76	46.33
17	55.77	1.667	24.18	49.23
18	59.06	1.765	25.60	52.13
19	62.34	1.863	27.02	55.02
20	65.62	1.961	28.45	57.92
21	68.90	2.059	29.87	60.81
22	72.18	2.157	31.29	63.71
23	75.46	2.256	32.71	66.61
24	78.74	2.354	34.14	69.50
25	82.02	2.452	35.56	72.40
30	98.43	2.942	42.67	86.88
35	114.8	3.432	49.78	101.4
40	131.2	3.923	56.89	115.8
45	147.6	4.413	64.01	130.3
50	164.0	4.903	71.12	144.8
55	180.4	5.394	78.23	159.3
60	196.9	5.884	85.34	173.8
65	213.3	6.374	92.45	188.2
70	229.7	6.865	99.56	202.7
75	246.1	7.355	106.7	217.2
80	262.5	7.845	113.8	231.7
85	278.9	8.336	120.9	246.2
90	295.3	8.826	128.0	260.6
95	311.7	9.316	135.1	275.1
100	328.1	9.807	142.2	289.6
110	360.9	10.79	156.5	318.5
120	393.7	11.77	170.7	347.5
130	426.5	12.75	184.9	376.5
140	459.3	13.73	199.1	405.4
150	492.1	14.71	213.4	434.4
160	524.9	15.69	227.6	463.3
170	557.7	16.67	241.8	492.3
180	590.6	17.65	256.0	521.3
190	623.4	18.63	270.2	550.2
200	656.2	19.61	284.5	579.2
210	689.0	20.59	298.7	608.1
220	721.8	21.57	312.9	637.1
230	754.6	22.56	327.1	666.1
240	787.4	23.54	341.4	695.0
250	820.2	24.52	355.6	724.0
275	902.2	26.97	391.1	796.4
300	984.3	29.42	426.7	868.8
325	1066	31.87	462.3	941.2
350	1148	34.32	497.8	1014
375	1230	36.77	533.4	1086
400	1312	39.23	568.9	1158
425	1394	41.68	604.5	1231
450	1476	44.13	640.1	1303
475	1558	46.58	675.6	1376
500	1640	49.03	711.2	1448
550	1804	53.94	782.3	1593
600	1969	58.84	853.4	1738
650	2133	63.74	924.5	1882
700	2297	68.65	995.6	2027
750	2461	73.55	1067	2172
800	2625	78.45	1138	2317
850	2789	83.36	1209	2462
900	2953	88.26	1280	2606
950	3117	93.16	1351	2751
1000	3281	98.07	1422	2896

To convert pressure from ftH2O to a higher precision use this pressure unit converter.