Pound per square inch 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 pounds per square inch [lb/in²] to inches of water [inH₂O] or inches of water [inH₂O] to pounds per square inch [lb/in²]. 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 pound per square inch [lb/in²] ≈ 27.7076 inches of water [inH₂O]1 inch of water [inH₂O] ≈ 0.0361 pounds per square inch [lb/in²]

Convert pounds per square inch to inches of water

There are two simple ways to convert pounds per square inch [lb/in²] to inches of water [inH₂O]. In the first calculation method, the value in pounds per square inch [lb/in²] is divided by the rounded conversion factor of 0.0361. The second method multiplies the value in pounds per square inch [lb/in²] by the rounded conversion factor of 27.7076.

  • Inches of water [inH₂O] ≈ pounds per square inch [lb/in²] ÷ 0.0361
  • Inches of water [inH₂O] ≈ pounds per square inch [lb/in²] * 27.7076

However, rounded conversion values are only suitable for rough conversions, as rounding errors can occur in the calculation result. The most accurate conversion of pounds per square inch [lb/in²] to inches of water [inH₂O] can be achieved using the following calculation method.

  • Inches of water [inH₂O] = pounds per square inch [lb/in²] * 453.59237 * 9.80665 ÷ 160.5416144

Convert inches of water to pounds per square inch

Converting inches of water [inH₂O] to pounds per square inch [lb/in²] 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 0.0361. The second variant is a division. Here, the value in inches of water [inH₂O] is divided by the rounded conversion factor of 27.7076.

  • Pounds per square inch [lb/in²] ≈ inches of water [inH₂O] * 0.0361
  • Pounds per square inch [lb/in²] ≈ inches of water [inH₂O] ÷ 27.7076

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 pounds per square inch [lb/in²] can be achieved using the following calculation method.

  • Pounds per square inch [lb/in²] = inches of water [inH₂O] ÷ 453.59237 ÷ 9.80665 * 160.5416144

Converter

Decimal places

How it's calculated

Factor: 
≈ 27.708
Inches of water = Pounds per square inch * 453.59237 * 9.80665 ÷ 160.5416144
Pounds per square inch = Inches of water ÷ 453.59237 ÷ 9.80665 * 160.5416144

To all available units

Pounds per square inch

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