Millimeters of water to Meters of seawater Converter

1 millimeter of water (mmH₂O) equals 0.000980665 meters of seawater (msw).

Quick answer

  • 1 millimeter of water = 0.000980665 meters of seawater
  • 1 meter of seawater = 1,019.716213 millimeters of water
  • Formula: msw = mmH₂O × 0.000980665

1 millimeter of water = 0.000980665 meters of seawater

How to convert millimeters of water to meters of seawater

msw = mmH₂O × 0.000980665

To convert millimeters of water to meters of seawater, multiply the number of millimeters of water by 0.000980665.

Example: 1 mmH₂O to msw

  1. Start with the value in millimeters of water: 1 mmH₂O.
  2. Multiply by 0.000980665: 1 × 0.000980665 = 0.000980665.
  3. Result: 1 millimeter of water = 0.000980665 meters of seawater.

Going the other way, 1 meter of seawater = 1,019.71621298 millimeters of water, so to convert meters of seawater back to millimeters of water you divide by the same number. See meters of seawater to millimeters of water.

Millimeters of water to meters of seawater conversion table

Millimeters of water (mmH₂O)Meters of seawater (msw)
1 mmH₂O 0.000980665 msw
2 mmH₂O 0.00196133 msw
3 mmH₂O 0.002941995 msw
4 mmH₂O 0.00392266 msw
5 mmH₂O 0.004903325 msw
6 mmH₂O 0.00588399 msw
7 mmH₂O 0.006864655 msw
8 mmH₂O 0.00784532 msw
9 mmH₂O 0.008825985 msw
10 mmH₂O 0.00980665 msw
100 mmH₂O 0.0980665 msw

What is a millimeter of water?

The millimeter of water is used for ventilation, duct and chimney draft pressures.

More about millimeters of water →

What is a meter of seawater?

Divers express pressure in meters of seawater: each 10 msw adds about 1 bar.

More about meters of seawater →

Frequently asked questions

How many meters of seawater are in a millimeter of water?

One millimeter of water is 0.000980665 meters of seawater.

How many millimeters of water are in a meter of seawater?

One meter of seawater is 1,019.716213 millimeters of water.

What is the formula to convert millimeters of water to meters of seawater?

msw = mmH₂O × 0.000980665.