Convert Inches of Water to Inches of Mercury
Convert inches of water to inches of mercury (inH₂O to inHg) with our instant calculator. 1 inH₂O = 0.073556 inHg. Includes exact formula and reference tables.
How to Convert Inches of Water to Inches of Mercury (inH₂O to inHg)
1 Inch of Water (inH₂O) is equal to 0.073556 Inches of Mercury (inHg). Multiply the inch of water value by 0.07355590572
Unit Definitions & Metrology Context
The SI unit of pressure is the pascal (Pa). Standard sea-level atmosphere is defined as 101,325 Pa (1.01325 bar or ~14.696 psi).
About Inches of Water (inH₂O): Inch of Water (inH₂O) is a unit in the Pressure measurement category. It is widely used in hvac duct & fan static pressure. Relative to the pressure base unit, 1 inH₂O equals 249.08891 Pascals (Pa).
About Inches of Mercury (inHg): Inch of Mercury (inHg) is a unit in the Pressure measurement category. It is widely used in inches of mercury (aviation altimeters). Relative to the pressure base unit, 1 inHg equals 3386.389 Pascals (Pa).
Need to convert in the opposite direction? Visit our Convert Inches of Mercury to Inches of Water (inHg to inH₂O) calculator (1 inHg = 13.595101 inH₂O).
Step-by-Step Worked Examples (inH₂O to inHg)
- Convert 5 Inches of Water to Inches of Mercury: Applying the formula (inHg = inH₂O × 0.07355590572): starting with 5 inH₂O, multiply the inch of water value by 0.07355590572 to get 0.3678 inHg.
- Convert 10 Inches of Water to Inches of Mercury: Applying the formula (inHg = inH₂O × 0.07355590572): starting with 10 inH₂O, multiply the inch of water value by 0.07355590572 to get 0.7356 inHg.
- Convert 50 Inches of Water to Inches of Mercury: Applying the formula (inHg = inH₂O × 0.07355590572): starting with 50 inH₂O, multiply the inch of water value by 0.07355590572 to get 3.6778 inHg.
Popular Pressure Conversions
Frequently Asked Questions
Verified answers and formulas for converting inches of water to inches of mercury.
There are 0.073556 inches of mercury (inHg) in 1 inch of water (inH₂O). Conversely, 1 inch of mercury equals 13.595101 inches of water.
To convert inches of water (inH₂O) to inches of mercury (inHg), use the formula: inHg = inH₂O × 0.07355590572. Multiply the inch of water value by 0.07355590572. For example, 10 inH₂O equals 0.7356 inHg.
To convert in the reverse direction from inches of mercury (inHg) to inches of water (inH₂O), use the inverse formula: inH₂O = inHg × 13.59510144. Multiply the inch of mercury value by 13.59510144 (1 inHg = 13.595101 inH₂O).
Both inch of water and inch of mercury measure pressure. Inch of Water (inH₂O) is a unit in the Pressure measurement category. It is widely used in hvac duct & fan static pressure. Relative to the pressure base unit, 1 inH₂O equals 249.08891 Pascals (Pa). Inch of Mercury (inHg) is a unit in the Pressure measurement category. It is widely used in inches of mercury (aviation altimeters). Relative to the pressure base unit, 1 inHg equals 3386.389 Pascals (Pa).
1 bar equals approximately 14.5038 PSI. For car tires, 2.2 bar is roughly 32 PSI.