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Bars to Millimeters of mercury Converter

1 bar = 750.062 mmHg (bar → millimeter of mercury)

1 bar = 750.062 mmHg

1 bar equals 750.062 millimeters of mercury. To convert bars to millimeters of mercury, multiply the bar value by 750.062. For quick reference: 1 bar = 750.062 mmHg, 5 bar = 3750.31 mmHg, 10 bar = 7500.62 mmHg, 100 bar = 75006.2 mmHg.

750.062
FormulaMillimeters of mercury = Bars × 750.062
Quick

When to use bars → millimeters of mercury

Bar to millimetres of mercury multiplies by 750.06 (100,000 ÷ 133.322387415). A 1.013 bar sea-level reading is about 760 mmHg; a 0.950 bar storm low is 712.6 mmHg. The conversion links modern barometric instruments, which report in bar or hPa, to older mercury-column records and some medical contexts. A common slip is treating 1 bar as 760 mmHg — that figure belongs to the atmosphere (1.01325 bar), and carrying it over to the bar builds in a 1.3 % error.

Anaesthesia machines and medical gas cylinders labelled in bar for the European market need converting to millimetres of mercury for older pressure charts still used in some clinical protocols. A 1 bar cylinder reading is 750.1 mmHg; a low-pressure oxygen line regulated to 0.4 bar is 300.0 mmHg. Because the bar-to-mmHg factor carries several significant figures rather than a round number, biomedical engineers calibrating imported equipment against a legacy mmHg gauge should use the full factor rather than rounding, which drifts noticeably at low pressures.

How to convert bars to millimeters of mercury

  1. Take your value

    Start with your value in bars.

  2. Multiply by 750.062

    Multiply the bar value by 750.062. This is the exact conversion factor from bars to millimeters of mercury.

  3. Read the result

    The product is your value in millimeters of mercury. For example, 5 bar × 750.062 = 3750.31 mmHg.

Conversion formula

The exact factor from bars to millimeters of mercury is 750.062.

Millimeters of mercury = Bars × 750.062

Bars to Millimeters of mercury conversion table

Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.

Conversion table from bars to millimeters of mercury
Bars (bar)Millimeters of mercury (mmHg)
0.001 bar0.75006 mmHg
0.01 bar7.5006 mmHg
0.1 bar75.006 mmHg
0.5 bar375.03 mmHg
1 bar750.06 mmHg
1.5 bar1125.1 mmHg
2 bar1500.1 mmHg
2.5 bar1875.2 mmHg
3 bar2250.2 mmHg
4 bar3000.2 mmHg
5 bar3750.3 mmHg
6 bar4500.4 mmHg
7 bar5250.4 mmHg
8 bar6000.5 mmHg
9 bar6750.6 mmHg
10 bar7500.6 mmHg
14 bar10501 mmHg
15 bar11251 mmHg
20 bar15001 mmHg
25 bar18752 mmHg
30 bar22502 mmHg
32 bar24002 mmHg
35 bar26252 mmHg
40 bar30002 mmHg
50 bar37503 mmHg
60 bar45004 mmHg
75 bar56255 mmHg
80 bar60005 mmHg
100 bar75006 mmHg
101.325 bar76000 mmHg
150 bar112509 mmHg
200 bar150012 mmHg
250 bar187515 mmHg
300 bar225018 mmHg
400 bar300025 mmHg
500 bar375031 mmHg
760 bar570047 mmHg
1000 bar750062 mmHg
1013.25 bar760000 mmHg
2000 bar1500123 mmHg
5000 bar3750308 mmHg
10000 bar7500616 mmHg
14.7 bar11026 mmHg
50000 bar37503079 mmHg
100000 bar75006158 mmHg
101325 bar75999989 mmHg
200000 bar150012315 mmHg
500000 bar375030788 mmHg
1000000 bar750061576 mmHg
10000000 bar7500615758 mmHg

Real-world reference

Standard atmospheric pressure is about 1.013 bar. A scuba tank is typically filled to 200 bar. In millimeters of mercury, that gives you: 1 bar = 750.062 mmHg, 10 bar = 7500.62 mmHg, 100 bar = 75006.2 mmHg.

Frequently asked questions

How many millimeters of mercury are in 1 bar?
1 bar equals 750.062 millimeters of mercury.
How do I convert bars to millimeters of mercury?
Multiply the bar value by 750.062. So x bar × 750.062 = the equivalent in mmHg.
What is 5 bars in millimeters of mercury?
5 bars equals 3750.31 millimeters of mercury.
What is 10 bars in millimeters of mercury?
10 bars equals 7500.62 millimeters of mercury.
What is 100 bars in millimeters of mercury?
100 bars equals 75006.2 millimeters of mercury.
How do I convert back from millimeters of mercury to bars?
Multiply the millimeter of mercury value by 0.00133322. For example, 1 mmHg = 0.00133322 bar.
Is the bar bigger than the millimeter of mercury?
Yes. 1 bar is larger than 1 millimeter of mercury — specifically 750.062 times larger.
Are these conversion factors exact?
The factor is derived directly from the SI definitions of bar and millimeter of mercury; the displayed value is rounded for readability, and the browser computes using IEEE 754 double-precision arithmetic.

About the bar and the millimeter of mercury

The bar

The bar equals exactly 100,000 pascals — close to but not equal to standard atmospheric pressure (1 atm = 1.01325 bar). It is the working unit for compressed-air systems, pneumatic tools, dive computers, and weather pressure outside North America.

The millimeter of mercury

The millimeter of mercury (mmHg) equals approximately 133.322 Pa — the pressure exerted by a 1 mm column of mercury under standard gravity. It is the conventional unit for blood pressure worldwide, even in countries that have otherwise gone fully metric.

Related converters

Millimeters of mercury to Bars
mmHg → bar
Pascals to Kilopascals
Pa → kPa
Pascals to Bars
Pa → bar
Pascals to Standard atmospheres
Pa → atm
Pascals to Pounds per square inch
Pa → psi
Pascals to Millimeters of mercury
Pa → mmHg

Sources