Air Pressure Inches To Millibars

Outdoor Article of the Month - August 1998

Barometric Pressure Conversion Chart

Inches of Mercury (Hg) / MilliBars / kiloPascals

In Hg	mB	kP	In Hg	mB	kP	In Hg	mB	kP	In Hg	mB	kP
29.00	982.i	98.two	29.50	999.0	99.9	30.00	1015.ix	101.6	30.fifty	1032.ix	103.3
29.01	982.4	98.2	29.51	999.three	99.ix	30.01	1016.iii	101.6	30.51	1033.2	103.3
29.02	982.seven	98.3	29.52	999.7	100.0	30.02	1016.half-dozen	101.7	30.52	1033.v	103.4
29.03	983.1	98.3	29.53	grand.0	100.0	thirty.03	1016.9	101.7	thirty.53	1033.9	103.4
29.04	983.four	98.iii	29.54	g.iii	100.0	30.04	1017.3	101.7	30.54	1034.2	103.4
29.05	983.8	98.four	29.55	k.7	100.1	xxx.05	1017.half-dozen	101.eight	30.55	1034.6	103.5
29.06	984.ane	98.4	29.56	1001.0	100.1	30.06	1018.0	101.8	30.56	1034.9	103.5
29.07	984.4	98.4	29.57	1001.iv	100.i	30.07	1018.3	101.8	30.57	1035.2	103.5
29.08	984.8	98.5	29.58	1001.7	100.two	thirty.08	1018.half-dozen	101.9	thirty.58	1035.6	103.vi
29.09	985.ane	98.five	29.59	1002.0	100.2	30.09	1019.0	101.9	thirty.59	1035.9	103.6
29.ten	985.4	98.5	29.threescore	1002.4	100.2	30.10	1019.iii	101.9	thirty.60	1036.2	103.6
29.11	985.8	98.six	29.61	1002.vii	100.3	30.xi	1019.seven	102.0	30.61	1036.6	103.7
29.12	986.one	98.6	29.62	1003.i	100.iii	30.12	1020.0	102.0	30.62	1036.9	103.7
29.xiii	986.5	98.6	29.63	1003.iv	100.3	30.13	1020.three	102.0	30.63	1037.iii	103.7
29.14	986.eight	98.7	29.64	1003.7	100.4	30.xiv	1020.7	102.1	30.64	1037.vi	103.viii
29.15	987.1	98.7	29.65	1004.1	100.4	30.15	1021.0	102.i	30.65	1037.nine	103.8
29.16	987.5	98.vii	29.66	1004.4	100.4	30.16	1021.iii	102.one	30.66	1038.three	103.8
29.17	987.8	98.8	29.67	1004.7	100.5	30.17	1021.7	102.ii	thirty.67	1038.six	103.nine
29.18	988.2	98.8	29.68	1005.1	100.5	30.eighteen	1022.0	102.2	30.68	1039.0	103.9
29.19	988.5	98.8	29.69	1005.iv	100.v	30.19	1022.4	102.2	xxx.69	1039.3	103.9
29.twenty	988.eight	98.nine	29.lxx	1005.8	100.6	thirty.xx	1022.7	102.iii	thirty.seventy	1039.vi	104.0
29.21	989.two	98.9	29.71	1006.ane	100.six	xxx.21	1023.0	102.three	xxx.71	1040.0	104.0
29.22	989.5	99.0	29.72	1006.4	100.6	thirty.22	1023.4	102.3	30.72	1040.3	104.0
29.23	989.eight	99.0	29.73	1006.8	100.vii	thirty.23	1023.7	102.4	30.73	1040.six	104.ane
29.24	990.2	99.0	29.74	1007.1	100.7	30.24	1024.1	102.4	30.74	1041.0	104.i
29.25	990.5	99.one	29.75	1007.5	100.7	30.25	1024.4	102.four	30.75	1041.3	104.1
29.26	990.9	99.ane	29.76	1007.8	100.eight	xxx.26	1024.7	102.five	30.76	1041.7	104.two
29.27	991.2	99.i	29.77	1008.one	100.eight	30.27	1025.1	102.5	thirty.77	1042.0	104.two
29.28	991.5	99.2	29.78	1008.5	100.viii	thirty.28	1025.4	102.5	xxx.78	1042.3	104.ii
29.29	991.9	99.2	29.79	1008.8	100.nine	30.29	1025.seven	102.6	30.79	1042.7	104.iii
29.30	992.2	99.two	29.80	1009.two	100.ix	30.30	1026.1	102.6	30.lxxx	1043.0	104.3
29.31	992.6	99.3	29.81	1009.v	100.9	30.31	1026.4	102.6	xxx.81	1043.4	104.3
29.32	992.9	99.3	29.82	1009.8	101.0	30.32	1026.8	102.seven	thirty.82	1043.seven	104.4
29.33	993.2	99.three	29.83	1010.ii	101.0	30.33	1027.1	102.7	30.83	1044.0	104.four
29.34	993.six	99.4	29.84	1010.v	101.one	xxx.34	1027.4	102.7	30.84	1044.4	104.iv
29.35	993.9	99.4	29.85	1010.eight	101.i	30.35	1027.8	102.viii	30.85	1044.7	104.5
29.36	994.3	99.4	29.86	1011.two	101.1	30.36	1028.1	102.8	thirty.86	1045.0	104.5
29.37	994.6	99.5	29.87	1011.5	101.2	30.37	1028.5	102.8	30.87	1045.4	104.5
29.38	994.9	99.5	29.88	1011.nine	101.2	30.38	1028.8	102.nine	xxx.88	1045.seven	104.6
29.39	995.3	99.5	29.89	1012.ii	101.2	30.39	1029.i	102.9	30.89	1046.i	104.6
29.40	995.6	99.6	29.90	1012.five	101.3	xxx.forty	1029.5	102.9	30.90	1046.4	104.6
29.41	995.9	99.vi	29.91	1012.nine	101.3	30.41	1029.8	103.0	30.91	1046.7	104.seven
29.42	996.3	99.6	29.92	1013.2	101.3	30.42	1030.1	103.0	30.92	1047.1	104.vii
29.43	996.vi	99.vii	29.93	1013.6	101.4	30.43	1030.5	103.0	30.93	1047.4	104.seven
29.44	997.0	99.7	29.94	1013.ix	101.iv	thirty.44	1030.8	103.1	30.94	1047.eight	104.8
29.45	997.three	99.seven	29.95	1014.two	101.4	xxx.45	1031.2	103.ane	30.95	1048.one	104.viii
29.46	997.vi	99.8	29.96	1014.6	101.v	thirty.46	1031.5	103.two	30.96	1048.4	104.viii
29.47	998.0	99.8	29.97	1014.9	101.5	30.47	1031.8	103.2	30.97	1048.8	104.9
29.48	998.3	99.8	29.98	1015.2	101.five	30.48	1032.2	103.ii	30.98	1049.1	104.nine
29.49	998.vii	99.ix	29.99	1015.half dozen	101.half-dozen	30.49	1032.5	103.iii	30.99	1049.5	104.9