Pound/sq foot to ftH2O (4°C) Converter

Pressure Converter

29 units available

Decimals:

From

To

0.016018

1 psf = 0.016018 ftH2O

Formula:

ftH2O = psf × 0.0160184635

With your value: 1 psf = 0.01601846 ftH2O

Other Pound/sq foot to ftH2O (4°C) conversions

2 psf to ftH2O 3 psf to ftH2O 4 psf to ftH2O 5 psf to ftH2O 6 psf to ftH2O 7 psf to ftH2O 8 psf to ftH2O

Pound/sq foot to ftH2O (4°C) Conversion Table

Pound/sq foot (psf)	ftH2O (4°C) (ftH2O)
0.5	0.008009
1	0.016018
2	0.032037
5	0.080092
10	0.160185
15	0.240277
20	0.320369
25	0.400462
50	0.800923
100	1.601846
250	4.004616
500	8.009232
1000	16.018463

ftH2O (4°C) to Pound/sq foot Conversion Table

ftH2O (4°C) (ftH2O)	Pound/sq foot (psf)
0.5	31.21398
1	62.42796
2	124.85592
5	312.139801
10	624.279602
15	936.419402
20	1,248.559203
25	1,560.699004
50	3,121.398008
100	6,242.796016
250	15,606.99004
500	31,213.980079
1000	62,427.960158

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Pound/sq foot (psf)

Pressure

Exact conversion

Derived from the pascal (1 Pa = 1 N/m²). The standard atmosphere is exactly 101 325 Pa.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

ftH2O (4°C) (ftH2O)

Pressure

Exact conversion

Derived from the pascal (1 Pa = 1 N/m²). The standard atmosphere is exactly 101 325 Pa.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Pound/sq foot to ftH2O (4°C)

To convert from Pound/sq foot (psf) to ftH2O (4°C) (ftH2O), multiply the value by 0.0160184635.

Formula: ftH2O = psf × 0.0160184635

Reverse: psf = ftH2O × 62.4279601584

Step-by-Step Example

Start with your value in Pound/sq foot. For example: 5 psf
Multiply by the conversion factor: 5 x 0.0160184635
The result is: 0.080092 ftH2O

About Pound/sq foot

The pound/sq foot (psf) is a unit of pressure and stress. One pound/sq foot equals 47.88025898 pascals. UnitConvertLab converts it against every other pressure unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: pressure calculations, engineering and science, education.

About ftH2O (4°C)

The fth2o (4°c) (ftH2O) is a unit of pressure and stress. One fth2o (4°c) equals 2989.0669 pascals. UnitConvertLab converts it against every other pressure unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: pressure calculations, engineering and science, education.

Frequently Asked Questions

How many ftH2O (4°C) are in 1 Pound/sq foot?

There are exactly 0.0160184635 ftH2O (4°C) in 1 Pound/sq foot. This means the conversion factor from Pound/sq foot to ftH2O (4°C) is 0.0160184635.

What is the formula to convert Pound/sq foot to ftH2O (4°C)?

The formula to convert Pound/sq foot to ftH2O (4°C) is: ftH2O = psf × 0.0160184635. For example, to convert 10 Pound/sq foot to ftH2O (4°C), you would multiply 10 by 0.0160184635.

What is a Pound/sq foot?