Millimeter of water 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 millimeters of water [mmH₂O, mmWS] to pascals [Pa] or pascals [Pa] to millimeters of water [mmH₂O, mmWS]. 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 millimeter of water [mmH₂O, mmWS] ≈ 9.8067 pascals [Pa]1 pascal [Pa] ≈ 0.102 millimeters of water [mmH₂O, mmWS]

Convert millimeters of water to pascals

There are two simple ways to convert millimeters of water [mmH₂O, mmWS] to pascals [Pa]. In the first calculation method, the value in millimeters of water [mmH₂O, mmWS] is divided by the rounded conversion factor of 0.102. The second method multiplies the value in millimeters of water [mmH₂O, mmWS] by the rounded conversion factor of 9.8067.

  • Pascals [Pa] ≈ millimeters of water [mmH₂O, mmWS] ÷ 0.102
  • Pascals [Pa] ≈ millimeters of water [mmH₂O, mmWS] * 9.8067

However, rounded conversion values are only suitable for rough conversions, as rounding errors can occur in the calculation result. The most accurate conversion of millimeters of water [mmH₂O, mmWS] to pascals [Pa] can be achieved using the following calculation method.

  • Pascals [Pa] = millimeters of water [mmH₂O, mmWS] * 9.80665

Convert pascals to millimeters of water

Converting pascals [Pa] to millimeters of water [mmH₂O, mmWS] 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 0.102. The second variant is a division. Here, the value in pascals [Pa] is divided by the rounded conversion factor of 9.8067.

  • Millimeters of water [mmH₂O, mmWS] ≈ pascals [Pa] * 0.102
  • Millimeters of water [mmH₂O, mmWS] ≈ pascals [Pa] ÷ 9.8067

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 millimeters of water [mmH₂O, mmWS] can be achieved using the following calculation method.

  • Millimeters of water [mmH₂O, mmWS] = pascals [Pa] ÷ 9.80665

Converter

Decimal places

How it's calculated

Factor: 
≈ 9.807
Pascals = Millimeters of water * 9.80665
Millimeters of water = Pascals ÷ 9.80665

To all available units

Millimeters of water

Psi

Millimeters of water

Standard atmospheres

Millipascals

Decapascals

Millipascals

Gigapascals

Millipascals

Megapascals