Feet of seawater to Millibars Converter

1 foot of seawater (fsw) equals 30.6433 millibars (mbar).

Quick answer

  • 1 foot of seawater = 30.6433 millibars
  • 1 millibar = 0.03263356101 feet of seawater
  • Formula: mbar = fsw × 30.6433

1 foot of seawater = 30.6433 millibars

How to convert feet of seawater to millibars

mbar = fsw × 30.6433

To convert feet of seawater to millibars, multiply the number of feet of seawater by 30.6433.

Example: 1 fsw to mbar

  1. Start with the value in feet of seawater: 1 fsw.
  2. Multiply by 30.6433: 1 × 30.6433 = 30.6433.
  3. Result: 1 foot of seawater = 30.6433 millibars.

Going the other way, 1 millibar = 0.032633561007 feet of seawater, so to convert millibars back to feet of seawater you divide by the same number. See millibars to feet of seawater.

Feet of seawater to millibars conversion table

Feet of seawater (fsw)Millibars (mbar)
1 fsw 30.6433 mbar
2 fsw 61.2866 mbar
3 fsw 91.9299 mbar
4 fsw 122.5732 mbar
5 fsw 153.2165 mbar
6 fsw 183.8598 mbar
7 fsw 214.5031 mbar
8 fsw 245.1464 mbar
9 fsw 275.7897 mbar
10 fsw 306.433 mbar
100 fsw 3,064.33 mbar

What is a foot of seawater?

US Navy diving tables use feet of seawater: about 33 fsw equals one atmosphere.

More about feet of seawater →

What is a millibar?

The millibar is a thousandth of a bar, equal to one hectopascal.

More about millibars →

Convert feet of seawater to other units

Convert other units to millibars

Frequently asked questions

How many millibars are in a foot of seawater?

One foot of seawater is 30.6433 millibars.

How many feet of seawater are in a millibar?

One millibar is 0.03263356101 feet of seawater.

What is the formula to convert feet of seawater to millibars?

mbar = fsw × 30.6433.