Inch of mercury to Inch of water Converter (and vice versa)
Created by: tinycalcs.com/en
Number of supported units: 2
Last update: 2026
This converter allows you to convert inches of mercury [inHg] to inches of water [inH₂O] or inches of water [inH₂O] to inches of mercury [inHg]. Calculations are performed in both directions. The calculation result and the entered value are displayed with up to 20 decimal places for maximum accuracy.
Convert inches of mercury to inches of water
There are two simple ways to convert inches of mercury [inHg] to inches of water [inH₂O]. In the first calculation method, the value in inches of mercury [inHg] is divided by the rounded conversion factor of 0.0735. The second method multiplies the value in inches of mercury [inHg] by the rounded conversion factor of 13.6087.
- Inches of water [inH₂O] ≈ inches of mercury [inHg] ÷ 0.0735
- Inches of water [inH₂O] ≈ inches of mercury [inHg] * 13.6087
However, rounded conversion values are only suitable for rough conversions, as rounding errors can occur in the calculation result. The most accurate conversion of inches of mercury [inHg] to inches of water [inH₂O] can be achieved using the following calculation method.
- Inches of water [inH₂O] = inches of mercury [inHg] * 2,573,655 ÷ 189,118.4
Convert inches of water to inches of mercury
Converting inches of water [inH₂O] to inches of mercury [inHg] is easy and can be done in two ways. The first method involves multiplication, in which the value in inches of water [inH₂O] is multiplied by the rounded conversion factor of 0.0735. The second variant is a division. Here, the value in inches of water [inH₂O] is divided by the rounded conversion factor of 13.6087.
- Inches of mercury [inHg] ≈ inches of water [inH₂O] * 0.0735
- Inches of mercury [inHg] ≈ inches of water [inH₂O] ÷ 13.6087
However, rounded conversion values do not allow for exact calculations because rounding errors can occur in the calculation result. The most accurate conversion of inches of water [inH₂O] to inches of mercury [inHg] can be achieved using the following calculation method.
- Inches of mercury [inHg] = inches of water [inH₂O] ÷ 2,573,655 * 189,118.4
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Inches of mercury
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Inches of mercury
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