Convert Millimeter of Water to Millimeter of Mercury (mmH2O to Millimeter of Mercury)
Millimeter of Water (mmH2O) and Millimeter of Mercury (Millimeter of Mercury) are both units of pressure. With the conversion form below, you can effortlessly and accurately convert millimeter of water to millimeter of mercury. This free online calculator tool makes it simple and easy to perform the conversion from mmH2O unit to the Millimeter of Mercury unit.
Millimeter of Water to Millimeter of Mercury conversion
Millimeter of Water to Millimeter of Mercury Conversion Formula
One Millimeter of Water is equal to 0.073555924007 Millimeter of Mercury.
Formula: 1 mmH2O = 0.073555924007 Millimeter of Mercury
By using this conversion factor, you can easily convert any pressure measurement from millimeter of water unit to millimeter of mercury unit with precision.
How to Convert mmH2O to Millimeter of Mercury?
Converting from mmH2O to Millimeter of Mercury is a straightforward process. Follow these steps to ensure accurate conversions from millimeter of water to millimeter of mercury:
- Select the Millimeter of Water Value: Start by determining the millimeter of water (mmH2O) value you want to convert into millimeter of mercury (Millimeter of Mercury). This is your starting point.
- Multiply by the Conversion Factor: To calculate millimeter of water to equivalent millimeter of mercury amount, multiply the selected mmH2O value by 0.073555924007.
- Illustration of Multiplication:
- 1 mmH2O = 0.073555924007 Millimeter of Mercury
- 10 mmH2O = 0.735559240069 Millimeter of Mercury
- 100 mmH2O = 7.355592401 Millimeter of Mercury
- Find the Conversion Result: The result of this multiplication is your converted value in millimeter of mercury unit. This represents the same pressure but in a different unit.
- Save Your Millimeter of Mercury Value: After converting, remember to save the result. This value represents the pressure you initially measured, now expressed in millimeter of mercurys.
- Alternative Method – Division: If you prefer not to multiply, you can achieve the same conversion by dividing the millimeter of water value by 13.595098063. This alternative method also gives you the correct pressure in millimeter of mercurys.
- Illustration of Division:
- Millimeter of Mercury = mmh2o ÷ 13.595098063
What is Pressure?
Pressure is the force applied perpendicular to a surface per unit area: P = F / A. The SI unit is the pascal (Pa), equal to one newton per square metre (1 Pa = 1 N/m²). Practical applications use larger units: the bar (1 bar = 100,000 Pa, close to standard atmospheric pressure), atmosphere (atm) (1 atm = 101,325 Pa), and psi (pounds per square inch, used in the US for tire and gas pressures). Blood pressure is measured in mmHg (millimetres of mercury), also called torr.
What is Millimeter of Water?
The millimeter of water (symbol: mmH₂O or mmH2O) is a non-SI unit of pressure defined as the pressure exerted by a one-millimeter column of water under standard gravity. It is commonly used in ventilation systems, clean rooms, HVAC engineering, and laboratory instruments to measure small pressure differences. Although the pascal is the SI unit of pressure, the millimeter of water remains a practical unit for low-pressure applications. It is based on the concept of a water column.
One millimeter of water is equal to 9.80665 pascals, 0.1 centimeter of water, 0.0000980665 bar, 0.00142233 pounds per square inch, and 0.00980665 kilopascal. The millimeter of water is widely used for measuring very low gas and liquid pressures.
What is Millimeter of Mercury?
The millimeter of mercury (symbol: mmHg) is a non-SI unit of pressure based on the pressure exerted by a one-millimeter column of mercury under standard gravity. It is widely used in medicine, physiology, meteorology, and vacuum technology. Blood pressure is commonly measured in millimeters of mercury, making it one of the world's best-known pressure units. The unit is closely related to the Torr.
One millimeter of mercury is equal to 133.322 pascals, 0.133322 kilopascals, 0.00133322 bar, 0.0193368 pounds per square inch, and 0.00131579 standard atmosphere. The millimeter of mercury remains the standard unit for blood pressure measurements.
Some Millimeter of Water to Millimeter of Mercury conversions
- 0.1 mmH2O = 0.007355592401 Millimeter of Mercury
- 0.2 mmH2O = 0.014711184801 Millimeter of Mercury
- 0.3 mmH2O = 0.022066777202 Millimeter of Mercury
- 0.4 mmH2O = 0.029422369603 Millimeter of Mercury
- 0.5 mmH2O = 0.036777962003 Millimeter of Mercury
- 0.6 mmH2O = 0.044133554404 Millimeter of Mercury
- 0.7 mmH2O = 0.051489146805 Millimeter of Mercury
- 0.8 mmH2O = 0.058844739206 Millimeter of Mercury
- 0.9 mmH2O = 0.066200331606 Millimeter of Mercury
- 1 mmH2O = 0.073555924007 Millimeter of Mercury
- 2 mmH2O = 0.147111848014 Millimeter of Mercury
- 3 mmH2O = 0.220667772021 Millimeter of Mercury
- 4 mmH2O = 0.294223696028 Millimeter of Mercury
- 5 mmH2O = 0.367779620035 Millimeter of Mercury
- 6 mmH2O = 0.441335544041 Millimeter of Mercury
- 7 mmH2O = 0.514891468048 Millimeter of Mercury
- 8 mmH2O = 0.588447392055 Millimeter of Mercury
- 9 mmH2O = 0.662003316062 Millimeter of Mercury
- 10 mmH2O = 0.735559240069 Millimeter of Mercury
- 20 mmH2O = 1.47111848 Millimeter of Mercury
- 30 mmH2O = 2.20667772 Millimeter of Mercury
- 40 mmH2O = 2.94223696 Millimeter of Mercury
- 50 mmH2O = 3.6777962 Millimeter of Mercury
- 60 mmH2O = 4.41335544 Millimeter of Mercury
- 70 mmH2O = 5.14891468 Millimeter of Mercury
- 80 mmH2O = 5.884473921 Millimeter of Mercury
- 90 mmH2O = 6.620033161 Millimeter of Mercury
- 100 mmH2O = 7.355592401 Millimeter of Mercury

Millimeter of Water to Millimeter of Mercury Examples
Example 1:
Convert 0.6 Millimeter of Water pressure to Millimeter of Mercury unit.
Solution:
We know that one Millimeter of Water is equivalent to 0.073555924007 Millimeter of Mercury.
Therefore,
0.6 mmH2O = 0.6 x 0.073555924007 Millimeter of Mercury.
0.6 mmH2O = 0.044133554404 Millimeter of Mercury.
Hence, 0.6 Millimeter of Water is approximately equal to 0.044133554404 Millimeter of Mercury.
Example 2:
Convert 9 Millimeter of Water pressure to Millimeter of Mercury unit.
Solution:
We know that one Millimeter of Water is equivalent to 0.073555924007 Millimeter of Mercury.
Therefore,
9 mmH2O = 9 x 0.073555924007 Millimeter of Mercury.
9 mmH2O = 0.662003316062 Millimeter of Mercury.
Hence, 9 Millimeter of Water is approximately equal to 0.662003316062 Millimeter of Mercury.
Frequently Asked Questions
How do you convert mmH2O to Millimeter of Mercury formula?
The main formula for the conversion of the mmH2O value to Millimeter of Mercury amount is to multiply the mmH2O value by 0.073555924007.
There are 0.073555924007 Millimeter of Mercury in 1 Millimeter of Water.To convert from Millimeter of Water to Millimeter of Mercury, multiply your figure by 0.073555924007 (or divide by 13.595098063).
What is the relation between Millimeter of Water and Millimeter of Mercury?
The relationship between Millimeter of Water and Millimeter of Mercury is given as follows: 1 mmH2O = 0.073555924007 Millimeter of Mercury
What is the value of 1 Millimeter of Water in equivalent Millimeter of Mercury?
1 Millimeter of Water pressure is equivalent to 0.073555924007 Millimeter of Mercury pressure.
What is the millimeter-of-water in millimeter-of-mercury?
1 millimeter-of-water equals 0.073555924007 millimeter-of-mercurys.
What is the value of 15 Millimeter of Water in Millimeter of Mercurys?
We know that 1 Millimeter of Water is equal to 0.073555924007 Millimeter of Mercury, multiply 15 by 0.073555924007 Millimeter of Mercury. Therefore, 15 Millimeter of Water = 15 x 0.073555924007 Millimeter of Mercury, 15 mmH2O = 1.10333886 Millimeter of Mercury. Hence, the value of 15 Millimeter of Water in Millimeter of Mercury is 1.10333886 Millimeter of Mercury.
What Pressure is 1 Millimeter of Mercury?
The Pressure of 1 Millimeter of Mercury spans 13.595098063 Millimeter of Water.
1 mmH2O how much millimeter-of-mercury?
1 Millimeter of Water (mmH2O) corresponds to 0.073555924007 Millimeter of Mercury (Millimeter of Mercury).
Millimeter of Water to Other Unit Conversions
- mmH2O to Attopascal
- mmH2O to Bar
- mmH2O to Ba
- mmH2O to Centimeter of Mercury
- mmH2O to Centimeter of water