Newton-Second/sq Meter to Pound/Foot-Second Converter

Dynamic Viscosity Converter

8 units available

Decimals:

From

To

0.671969

1 N·s/m² = 0.671969 lb/(ft·s)

Formula:

lb/(ft·s) = N·s/m² × 0.6719689948

With your value: 1 N·s/m² = 0.67196899 lb/(ft·s)

Other Newton-Second/sq Meter to Pound/Foot-Second conversions

2 N·s/m² to lb/(ft·s)3 N·s/m² to lb/(ft·s)4 N·s/m² to lb/(ft·s)5 N·s/m² to lb/(ft·s)6 N·s/m² to lb/(ft·s)7 N·s/m² to lb/(ft·s)8 N·s/m² to lb/(ft·s)

Newton-Second/sq Meter to Pound/Foot-Second Conversion Table

Newton-Second/sq Meter (N·s/m²)	Pound/Foot-Second (lb/(ft·s))
0.5	0.335984
1	0.671969
2	1.343938
5	3.359845
10	6.71969
15	10.079535
20	13.43938
25	16.799225
50	33.59845
100	67.196899
250	167.992249
500	335.984497
1000	671.968995

Pound/Foot-Second to Newton-Second/sq Meter Conversion Table

Pound/Foot-Second (lb/(ft·s))	Newton-Second/sq Meter (N·s/m²)
0.5	0.744082
1	1.488164
2	2.976328
5	7.44082
10	14.881639
15	22.322459
20	29.763278
25	37.204098
50	74.408195
100	148.81639
250	372.040975
500	744.08195
1000	1,488.1639

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.

Newton-Second/sq Meter (N·s/m²)

Dynamic Viscosity

Exact conversion

Derived quantity, pascal-second (Pa·s = kg/(m·s)). The poise is exactly 0.1 Pa·s by CGS definition.

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

Pound/Foot-Second (lb/(ft·s))

Dynamic Viscosity

Exact conversion

Derived quantity, pascal-second (Pa·s = kg/(m·s)). The poise is exactly 0.1 Pa·s by CGS definition.

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 Newton-Second/sq Meter to Pound/Foot-Second

To convert from Newton-Second/sq Meter (N·s/m²) to Pound/Foot-Second (lb/(ft·s)), multiply the value by 0.6719689948.

Formula: lb/(ft·s) = N·s/m² × 0.6719689948

Reverse: N·s/m² = lb/(ft·s) × 1.4881639

Step-by-Step Example

Start with your value in Newton-Second/sq Meter. For example: 5 N·s/m²
Multiply by the conversion factor: 5 x 0.6719689948
The result is: 3.359845 lb/(ft·s)

About Newton-Second/sq Meter

The newton-second/sq meter (N·s/m²) is a unit of dynamic viscosity. One newton-second/sq meter equals 1 base unit. UnitConvertLab converts it against every other dynamic viscosity unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: dynamic viscosity calculations, engineering and science, education.

About Pound/Foot-Second

The pound/foot-second (lb/(ft·s)) is a unit of dynamic viscosity. One pound/foot-second equals 1.4881639 base units. UnitConvertLab converts it against every other dynamic viscosity unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: dynamic viscosity calculations, engineering and science, education.

Frequently Asked Questions

How many Pound/Foot-Second are in 1 Newton-Second/sq Meter?

There are exactly 0.6719689948 Pound/Foot-Second in 1 Newton-Second/sq Meter. This means the conversion factor from Newton-Second/sq Meter to Pound/Foot-Second is 0.6719689948.

What is the formula to convert Newton-Second/sq Meter to Pound/Foot-Second?

The formula to convert Newton-Second/sq Meter to Pound/Foot-Second is: lb/(ft·s) = N·s/m² × 0.6719689948. For example, to convert 10 Newton-Second/sq Meter to Pound/Foot-Second, you would multiply 10 by 0.6719689948.

What is a Newton-Second/sq Meter?