Convert Centimeter of water to Millimeter of Mercury (cmH2O to Millimeter of Mercury)
Centimeter of water (cmH2O) and Millimeter of Mercury (Millimeter of Mercury) are both units of pressure. With the conversion form below, you can effortlessly and accurately convert centimeter of water to millimeter of mercury. This free online calculator tool makes it simple and easy to perform the conversion from cmH2O unit to the Millimeter of Mercury unit.
Centimeter of water to Millimeter of Mercury conversion
Centimeter of water to Millimeter of Mercury Conversion Formula
One Centimeter of water is equal to 0.735559240069 Millimeter of Mercury.
Formula: 1 cmH2O = 0.735559240069 Millimeter of Mercury
By using this conversion factor, you can easily convert any pressure measurement from centimeter of water unit to millimeter of mercury unit with precision.
How to Convert cmH2O to Millimeter of Mercury?
Converting from cmH2O to Millimeter of Mercury is a straightforward process. Follow these steps to ensure accurate conversions from centimeter of water to millimeter of mercury:
- Select the Centimeter of water Value: Start by determining the centimeter of water (cmH2O) value you want to convert into millimeter of mercury (Millimeter of Mercury). This is your starting point.
- Multiply by the Conversion Factor: To calculate centimeter of water to equivalent millimeter of mercury amount, multiply the selected cmH2O value by 0.735559240069.
- Illustration of Multiplication:
- 1 cmH2O = 0.735559240069 Millimeter of Mercury
- 10 cmH2O = 7.355592401 Millimeter of Mercury
- 100 cmH2O = 73.555924007 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 centimeter of water value by 1.359509806. This alternative method also gives you the correct pressure in millimeter of mercurys.
- Illustration of Division:
- Millimeter of Mercury = cmh2o ÷ 1.359509806
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 Centimeter of water?
The centimeter of water (symbol: cmH₂O) is a non-SI unit of pressure defined as the pressure exerted by a one-centimeter column of water under standard gravity. It is widely used in medical equipment, ventilation systems, HVAC engineering, and fluid mechanics because it provides a practical scale for measuring relatively low pressures. The unit is derived from the hydrostatic pressure of water and is described alongside other pressure units in the centimeter of water reference.
One centimeter of water is equal to 98.0665 pascals, 10 millimeters of water, 0.000980665 bar, 0.0142233 psi, and 0.000967841 standard atmosphere. The centimeter of water is commonly used whenever accurate measurement of low pressure is required.
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 Centimeter of water to Millimeter of Mercury conversions
- 0.1 cmH2O = 0.073555924007 Millimeter of Mercury
- 0.2 cmH2O = 0.147111848014 Millimeter of Mercury
- 0.3 cmH2O = 0.220667772021 Millimeter of Mercury
- 0.4 cmH2O = 0.294223696028 Millimeter of Mercury
- 0.5 cmH2O = 0.367779620035 Millimeter of Mercury
- 0.6 cmH2O = 0.441335544041 Millimeter of Mercury
- 0.7 cmH2O = 0.514891468048 Millimeter of Mercury
- 0.8 cmH2O = 0.588447392055 Millimeter of Mercury
- 0.9 cmH2O = 0.662003316062 Millimeter of Mercury
- 1 cmH2O = 0.735559240069 Millimeter of Mercury
- 2 cmH2O = 1.47111848 Millimeter of Mercury
- 3 cmH2O = 2.20667772 Millimeter of Mercury
- 4 cmH2O = 2.94223696 Millimeter of Mercury
- 5 cmH2O = 3.6777962 Millimeter of Mercury
- 6 cmH2O = 4.41335544 Millimeter of Mercury
- 7 cmH2O = 5.14891468 Millimeter of Mercury
- 8 cmH2O = 5.884473921 Millimeter of Mercury
- 9 cmH2O = 6.620033161 Millimeter of Mercury
- 10 cmH2O = 7.355592401 Millimeter of Mercury
- 20 cmH2O = 14.711184801 Millimeter of Mercury
- 30 cmH2O = 22.066777202 Millimeter of Mercury
- 40 cmH2O = 29.422369603 Millimeter of Mercury
- 50 cmH2O = 36.777962003 Millimeter of Mercury
- 60 cmH2O = 44.133554404 Millimeter of Mercury
- 70 cmH2O = 51.489146805 Millimeter of Mercury
- 80 cmH2O = 58.844739206 Millimeter of Mercury
- 90 cmH2O = 66.200331606 Millimeter of Mercury
- 100 cmH2O = 73.555924007 Millimeter of Mercury

Centimeter of water to Millimeter of Mercury Examples
Example 1:
Convert 0.3 Centimeter of water pressure to Millimeter of Mercury unit.
Solution:
We know that one Centimeter of water is equivalent to 0.735559240069 Millimeter of Mercury.
Therefore,
0.3 cmH2O = 0.3 x 0.735559240069 Millimeter of Mercury.
0.3 cmH2O = 0.220667772021 Millimeter of Mercury.
Hence, 0.3 Centimeter of water is approximately equal to 0.220667772021 Millimeter of Mercury.
Example 2:
Convert 4 Centimeter of water pressure to Millimeter of Mercury unit.
Solution:
We know that one Centimeter of water is equivalent to 0.735559240069 Millimeter of Mercury.
Therefore,
4 cmH2O = 4 x 0.735559240069 Millimeter of Mercury.
4 cmH2O = 2.94223696 Millimeter of Mercury.
Hence, 4 Centimeter of water is approximately equal to 2.94223696 Millimeter of Mercury.
Frequently Asked Questions
How do you convert cmH2O to Millimeter of Mercury formula?
The main formula for the conversion of the cmH2O value to Millimeter of Mercury amount is to multiply the cmH2O value by 0.735559240069.
There are 0.735559240069 Millimeter of Mercury in 1 Centimeter of water.To convert from Centimeter of water to Millimeter of Mercury, multiply your figure by 0.735559240069 (or divide by 1.359509806).
What is the relation between Centimeter of water and Millimeter of Mercury?
The relationship between Centimeter of water and Millimeter of Mercury is given as follows: 1 cmH2O = 0.735559240069 Millimeter of Mercury
What is the value of 1 Centimeter of water in equivalent Millimeter of Mercury?
1 Centimeter of water pressure is equivalent to 0.735559240069 Millimeter of Mercury pressure.
What is the centimeter-of-water in millimeter-of-mercury?
1 centimeter-of-water equals 0.735559240069 millimeter-of-mercurys.
What is the value of 15 Centimeter of water in Millimeter of Mercurys?
We know that 1 Centimeter of water is equal to 0.735559240069 Millimeter of Mercury, multiply 15 by 0.735559240069 Millimeter of Mercury. Therefore, 15 Centimeter of water = 15 x 0.735559240069 Millimeter of Mercury, 15 cmH2O = 11.033388601 Millimeter of Mercury. Hence, the value of 15 Centimeter of water in Millimeter of Mercury is 11.033388601 Millimeter of Mercury.
What Pressure is 1 Millimeter of Mercury?
The Pressure of 1 Millimeter of Mercury spans 1.359509806 Centimeter of water.
1 cmH2O how much millimeter-of-mercury?
1 Centimeter of water (cmH2O) corresponds to 0.735559240069 Millimeter of Mercury (Millimeter of Mercury).