Inch of mercury to Pascal 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 pascals [Pa] or pascals [Pa] 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.

1 inch of mercury [inHg] ≈ 3,386.3882 pascals [Pa]1 pascal [Pa] ≈ 2.953 * 10-4 inches of mercury [inHg]

Convert inches of mercury to pascals

There are two simple ways to convert inches of mercury [inHg] to pascals [Pa]. In the first calculation method, the value in inches of mercury [inHg] is divided by the rounded conversion factor of 2.953 * 10-4. The second method multiplies the value in inches of mercury [inHg] by the rounded conversion factor of 3,386.3882.

  • Pascals [Pa] ≈ inches of mercury [inHg] ÷ (2.953 * 10-4)
  • Pascals [Pa] ≈ inches of mercury [inHg] * 3,386.3882

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 pascals [Pa] can be achieved using the following calculation method.

  • Pascals [Pa] = inches of mercury [inHg] * 2,573,655 ÷ 760

Convert pascals to inches of mercury

Converting pascals [Pa] to inches of mercury [inHg] is easy and can be done in two ways. The first method involves multiplication, in which the value in pascals [Pa] is multiplied by the rounded conversion factor of 2.953 * 10-4. The second variant is a division. Here, the value in pascals [Pa] is divided by the rounded conversion factor of 3,386.3882.

  • Inches of mercury [inHg] ≈ pascals [Pa] * 2.953 * 10-4
  • Inches of mercury [inHg] ≈ pascals [Pa] ÷ 3,386.3882

However, rounded conversion values do not allow for exact calculations because rounding errors can occur in the calculation result. The most accurate conversion of pascals [Pa] to inches of mercury [inHg] can be achieved using the following calculation method.

  • Inches of mercury [inHg] = pascals [Pa] ÷ 2,573,655 * 760

Converter

Decimal places

How it's calculated

Factor: 
≈ 3,386.388
Pascals = Inches of mercury * 2,573,655 ÷ 760
Inches of mercury = Pascals ÷ 2,573,655 * 760

To all available units

Inches of mercury

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Standard atmospheres

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Inches of water

Decapascals

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Gigapascals