Inches of water to Barg (gauge bar) Converter

Convert inches of water (inH₂O) to barg (gauge bar) (barg) with the formula and table below.

Quick answer

  • Formula: barg = inH₂O × 0.0024908891 − 1.01325
  • Example: 1 inH₂O = -1.0107591 barg

1 inch of water = -1.010759111 barg (gauge bar)

How to convert inches of water to barg (gauge bar)

barg = inH₂O × 0.0024908891 − 1.01325

This conversion is not a simple multiplication, so the size of one unit alone does not tell you the answer. Example: 4 inH₂O = -1.003286444 barg. For the reverse, see barg (gauge bar) to inches of water.

Inches of water to barg (gauge bar) conversion table

Inches of water (inH₂O)Barg (gauge bar) (barg)
1 inH₂O -1.010759111 barg
2 inH₂O -1.008268222 barg
3 inH₂O -1.005777333 barg
4 inH₂O -1.003286444 barg
5 inH₂O -1.000795555 barg
6 inH₂O -0.9983046654 barg
7 inH₂O -0.9958137763 barg
8 inH₂O -0.9933228872 barg
9 inH₂O -0.9908319981 barg
10 inH₂O -0.988341109 barg
100 inH₂O -0.76416109 barg

What is an inch of water?

The inch of water column is the standard unit for low pressures in US gas and HVAC work: natural gas appliances run at about 3.5–7 inches of water, and duct static pressures are measured the same way.

More about inches of water →

What is a barg (gauge bar)?

Barg means bar gauge: pressure measured relative to the surrounding atmosphere, which is what most pressure gauges read.

More about barg (gauge bar) →

Frequently asked questions

How many barg (gauge bar) are in an inch of water?

One inch of water is -1.010759111 barg (gauge bar).

How many inches of water are in a barg (gauge bar)?

One barg (gauge bar) is 808.2455377 inches of water.

What is the formula to convert inches of water to barg (gauge bar)?

barg = inH₂O × 0.0024908891 − 1.01325.