mmHg (0°C) to ftH2O (4°C) Converter

Pressure Converter

29 units available

Decimals:

From

To

0.044603

1 mmHg = 0.044603 ftH2O

Formula:

ftH2O = mmHg × 0.0446033468

With your value: 1 mmHg = 0.04460335 ftH2O

Other mmHg (0°C) to ftH2O (4°C) conversions

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

mmHg (0°C) to ftH2O (4°C) Conversion Table

mmHg (0°C) (mmHg)	ftH2O (4°C) (ftH2O)
0.5	0.022302
1	0.044603
2	0.089207
5	0.223017
10	0.446033
15	0.66905
20	0.892067
25	1.115084
50	2.230167
100	4.460335
250	11.150837
500	22.301673
1000	44.603347

ftH2O (4°C) to mmHg (0°C) Conversion Table

ftH2O (4°C) (ftH2O)	mmHg (0°C) (mmHg)
0.5	11.209921
1	22.419842
2	44.839685
5	112.099211
10	224.198423
15	336.297634
20	448.396846
25	560.496057
50	1,120.992115
100	2,241.984229
250	5,604.960573
500	11,209.921147
1000	22,419.842293

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.

mmHg (0°C) (mmHg)

Pressure

Conventional value

The conventional millimetre of mercury is 133.322 387 415 Pa, based on mercury density 13 595.1 kg/m³ and g₀ = 9.806 65 m/s².

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 mmHg (0°C) to ftH2O (4°C)

To convert from mmHg (0°C) (mmHg) to ftH2O (4°C) (ftH2O), multiply the value by 0.0446033468.

Formula: ftH2O = mmHg × 0.0446033468

Reverse: mmHg = ftH2O × 22.4198422932

Step-by-Step Example

Start with your value in mmHg (0°C). For example: 5 mmHg
Multiply by the conversion factor: 5 x 0.0446033468
The result is: 0.223017 ftH2O

About mmHg (0°C)

The mmhg (0°c) (mmHg) is a unit of pressure and stress. One mmhg (0°c) equals 133.3223874 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 mmHg (0°C)?

There are exactly 0.0446033468 ftH2O (4°C) in 1 mmHg (0°C). This means the conversion factor from mmHg (0°C) to ftH2O (4°C) is 0.0446033468.

What is the formula to convert mmHg (0°C) to ftH2O (4°C)?

The formula to convert mmHg (0°C) to ftH2O (4°C) is: ftH2O = mmHg × 0.0446033468. For example, to convert 10 mmHg (0°C) to ftH2O (4°C), you would multiply 10 by 0.0446033468.

What is a mmHg (0°C)?