Convert Millimeters of Water to Baryes
1 millimeter of water (mmH₂O) equals 98.0665 baryes (Ba).
1 mmH₂O = 98.0665 Ba
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk millimeter of water to barye converter to paste a column from Excel.
How to Convert Millimeter of Water to Barye
- 1 mmH₂O = 98.0665 Ba
- 1 Ba = 0.01019716213 mmH₂O
- Example: convert 15 mmH₂O to Ba: 15 mmH₂O = 15 × 98.0665 Ba = 1470.9975 Ba
Reference conditions. mmH₂O: Conventional water column: ρ = 1000 kg/m³ and gₙ = 9.80665 m/s² (≈ water at 4 °C).
Formula
Ba = mmH₂O × 98.0665
Derivation from SI units:
- 1 mmH₂O = 1000 kg/m³ × 9.80665 m/s² × 0.001 m = 9.80665 Pa
- 1 Ba = 1 dyn/cm² = 10⁻⁵ N ÷ 10⁻⁴ m² = 0.1 Pa
- 1 mmH₂O = 9.80665 Pa ÷ 0.1 Pa per Ba = 98.0665 Ba
Both units are defined exactly, so the factor is exact. Millimeter of Water definition: millimeter of water; Barye definition: barye.
Worked examples
- A reading of 25 mmH₂O converts to 2451.6625 Ba.
25 mmH₂O × 98.0665 = 2451.6625 Ba - A value of 250 mmH₂O is 24516.625 Ba.
250 mmH₂O × 98.0665 = 24516.625 Ba
Millimeter of Water to Barye conversion table
| Millimeters of Water (mmH₂O) | Baryes (Ba) |
|---|---|
| 1 mmH₂O | 98.0665 Ba |
| 2 mmH₂O | 196.133 Ba |
| 5 mmH₂O | 490.3325 Ba |
| 10 mmH₂O | 980.665 Ba |
| 15 mmH₂O | 1470.9975 Ba |
| 20 mmH₂O | 1961.33 Ba |
| 25 mmH₂O | 2451.6625 Ba |
| 30 mmH₂O | 2941.995 Ba |
| 50 mmH₂O | 4903.325 Ba |
| 75 mmH₂O | 7354.9875 Ba |
| 100 mmH₂O | 9806.65 Ba |
| 150 mmH₂O | 14709.975 Ba |
| 200 mmH₂O | 19613.3 Ba |
| 250 mmH₂O | 24516.625 Ba |
| 300 mmH₂O | 29419.95 Ba |
| 500 mmH₂O | 49033.25 Ba |
| 1000 mmH₂O | 98066.5 Ba |
| 2000 mmH₂O | 196133 Ba |
| 5000 mmH₂O | 490332.5 Ba |
| 10000 mmH₂O | 980665 Ba |
Where it's used
Millimeters of Water are used for fan static pressure and duct design in Asia and Europe, while baryes appear in older physics and acoustics literature. Both measure pressure, stress and differential pressure (force per unit area), so the conversion is a fixed factor.
Millimeter of Water to other pressure units
| Conversion | 1 mmH₂O equals |
|---|---|
| millimeter of water to pascal | 9.80665 Pa |
| millimeter of water to kilopascal | 0.00980665 kPa |
| millimeter of water to megapascal | 0.00000980665 MPa |
| millimeter of water to psi | 0.001422334331 psi |
| millimeter of water to bar | 0.0000980665 bar |
| millimeter of water to millibar | 0.0980665 mbar |
| millimeter of water to decibar | 0.000980665 dbar |
| millimeter of water to torr | 0.07355592401 Torr |
| millimeter of water to millimeter of mercury | 0.07355591353 mmHg |
| millimeter of water to centimeter of water | 0.1 cmH₂O |
| millimeter of water to inch of water | 0.03937007874 inH₂O |
| millimeter of water to inch of water (60 °F) | 0.03940945989 inH₂O (60 °F) |
| millimeter of water to inch of mercury | 0.002895902107 inHg |
| millimeter of water to atmosphere | 0.00009678411054 atm |
| millimeter of water to barye | 98.0665 Ba |
Frequently asked questions
How many baryes are in 1 millimeter of water?
1 mmH₂O = 98.0665 Ba.
How do I convert millimeters of water to baryes?
Multiply the value in mmH₂O by 98.0665. For example, 15 mmH₂O × 98.0665 = 1470.9975 Ba.
Is the mmH₂O to Ba conversion exact?
Yes. Both units are defined exactly, and 1 mmH₂O is exactly 98.0665 Ba.
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "millimeter of water, conventional (mmH2O)".
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "dyne per square centimeter (dyn/cm²)".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Millimeters of Water to Baryes. Retrieved October 17, 2026, from https://scientificconverters.com/pressure/millimeter-of-water-to-barye/
IEEE
Scientific Converters, "Convert Millimeters of Water to Baryes," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/pressure/millimeter-of-water-to-barye/