Convert Atmospheres to Millibars

Enter your atmosphere value in the form below to get the value calculated in millibars.

Results in Millibars:

1 atm = 1,013.25 millibars

How to Convert Atmospheres to Millibars Using an Easy Conversion Formula

Calculators can be used to convert measurements from one unit to another

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Convert atmospheres to millibars with this simple formula:

millibars = atmospheres × 1013.25

Converting an atmosphere pressure measurement to a millibar measurement involves multiplying your pressure by the conversion ratio to find the result. An atmosphere is equal to 1013.25 millibars, so to convert simply multiply by 1013.25.

For example:

5atm = (5 × 1013.25) = 5,066.25 millibars

Atmospheres and millibars are both units used to measure pressure. Learn more about pressure and find more pressure measurement conversion calculators. An atmosphere is a pressure measurement and can be abbreviated as atm, for example 1atm. A millibar is a metric measurement. Learn more about the metric system, including the common unit prefixes and how to convert between metric units.

atmospheres and millibars are units used to measure pressure

Convert Millibars to Atmospheres

Atmosphere Measurements and Equivalent Millibar Conversions

Common atmosphere values converted to the equivalent millibar value
Atmospheres	Millibars	Atmospheres	Millibars	Atmospheres	Millibars
1	1,013	21	21,278	41	41,543
2	2,027	22	22,292	42	42,557
3	3,040	23	23,305	43	43,570
4	4,053	24	24,318	44	44,583
5	5,066	25	25,331	45	45,596
6	6,080	26	26,345	46	46,610
7	7,093	27	27,358	47	47,623
8	8,106	28	28,371	48	48,636
9	9,119	29	29,384	49	49,649
10	10,133	30	30,398	50	50,663
11	11,146	31	31,411	51	51,676
12	12,159	32	32,424	52	52,689
13	13,172	33	33,437	53	53,702
14	14,186	34	34,451	54	54,716
15	15,199	35	35,464	55	55,729
16	16,212	36	36,477	56	56,742
17	17,225	37	37,490	57	57,755
18	18,239	38	38,504	58	58,769
19	19,252	39	39,517	59	59,782
20	20,265	40	40,530	60	60,795