Convert Centipoise to Pounds per foot-second
Instantly convert Centipoise (cP) to Pounds per foot-second (lb/(ft·s)) with our free online calculator.
Formula: cP to lb/(ft·s) — multiply by 6.7197e-4
Reference Table
| Centipoise (cP) | Pounds per foot-second (lb/(ft·s)) |
|---|---|
| 1 | 0.000671971 |
| 5 | 0.00335985 |
| 10 | 0.00671971 |
| 25 | 0.0167993 |
| 50 | 0.0335985 |
| 100 | 0.0671971 |
How to Convert Centipoise to Pounds per foot-second
Formula
To convert Centipoise (cP) to Pounds per foot-second (lb/(ft·s)): multiply by 6.7197e-4
Step-by-Step
- Start with your value in Centipoise (cP).
- Multiply by 6.7197e-4 to perform the conversion.
- The result is your value expressed in Pounds per foot-second (lb/(ft·s)).
Conversion Factor
1 cP = 0.000671971 lb/(ft·s)
Reverse Factor
1 lb/(ft·s) = 1488.16 cP
Worked Example
Convert 25 Centipoise to Pounds per foot-second: 25 cP = 0.0167993 lb/(ft·s)
About Centipoise (cP)
A CGS dynamic-viscosity unit equal to exactly 0.01 poise = 0.001 Pa·s = 1 mPa·s. Centipoise is the traditional working unit in coatings, paints, petroleum products, food processing, and pharmaceutical excipient characterization — Brookfield rotational viscometers (the industry-standard QC instrument since the 1930s) default to reporting in cP on the dial readout. Test methods: ASTM D445 (kinematic viscosity, but cross-references to cP via density), ASTM D2196 (rheological properties via rotational viscometer), ASTM D562 (Stormer viscometer Krebs Units, with cP cross-reference), ISO 2555 (Brookfield-method paint and ink), USP <911> (pharmacopoeial Brookfield method). Reference values: water = 1 cP at 20 °C (the famous calibration baseline; viscosity standards are sold traceable to NIST in mPa·s / cP units), SAE 10W30 motor oil at 100 °C ~12 cP, latex paint 500-1,500 cP, ketchup ~50,000 cP (highly shear-thinning so the exact number depends on shear rate).
About Pound per foot-second (lb/(ft·s))
An imperial dynamic-viscosity unit using pound-mass per foot-second (≈ 1.4882 Pa·s per NIST SP 811 = 1,488 cP). Primarily encountered in US petroleum engineering (older API and SPE journal articles quote downhole-fluid viscosities in lb/(ft·s) alongside cP for drilling-fluid rheology and well-cementing calcs per API RP 13B), legacy ASME fluid-mechanics and heat-transfer textbooks (older editions of Streeter, McCabe-Smith-Harriott, Bird-Stewart-Lightfoot, Incropera-DeWitt), and HVAC calculations performed in fully-imperial unit systems where consistency with lb / ft / s eliminates conversion factors in Reynolds-number and Prandtl-number dimensionless-group formulas. Most modern US engineering has migrated to centipoise / Pa·s for new work; lb/(ft·s) is most useful for interpreting pre-1990s US-edition specifications, journal articles, and ASME-code background calculation derivations. Convert lb/(ft·s) to Pa·s by multiplying by 1.4882; to cP / mPa·s by multiplying by 1,488.2; to lb/(ft·hr) by multiplying by 3,600.
Quick Facts
- 1 Centipoise equals 0.000671971 Pounds per foot-second
- 1 Pound per foot-second equals 1488.16 Centipoise
- Centipoise is a unit of dynamic viscosity
- Pound per foot-second is a unit of dynamic viscosity
- This conversion is commonly used in lubricant selection, chemical processing, and fluid dynamics
- The Centipoise belongs to the metric system
- The Pound per foot-second belongs to the imperial system
Common Centipoise to Pound per foot-second Conversions
| Centipoise (cP) | Pounds per foot-second (lb/(ft·s)) |
|---|---|
| 0.01 | 0.00000671971 |
| 0.1 | 0.0000671971 |
| 0.25 | 0.000167993 |
| 0.5 | 0.000335985 |
| 1 | 0.000671971 |
| 2 | 0.00134394 |
| 3 | 0.00201591 |
| 5 | 0.00335985 |
| 10 | 0.00671971 |
| 15 | 0.0100796 |
| 20 | 0.0134394 |
| 25 | 0.0167993 |
| 50 | 0.0335985 |
| 75 | 0.0503978 |
| 100 | 0.0671971 |
| 250 | 0.167993 |
| 500 | 0.335985 |
| 1000 | 0.671971 |
| 5000 | 3.35985 |
| 10000 | 6.71971 |
Understanding Centipoise
The Centipoise (symbol: cP) is a unit of dynamic viscosity. A CGS dynamic-viscosity unit equal to exactly 0.01 poise = 0.001 Pa·s = 1 mPa·s. Centipoise is the traditional working unit in coatings, paints, petroleum products, food processing, and pharmaceutical excipient characterization — Brookfield rotational viscometers (the industry-standard QC instrument since the 1930s) default to reporting in cP on the dial readout. Test methods: ASTM D445 (kinematic viscosity, but cross-references to cP via density), ASTM D2196 (rheological properties via rotational viscometer), ASTM D562 (Stormer viscometer Krebs Units, with cP cross-reference), ISO 2555 (Brookfield-method paint and ink), USP <911> (pharmacopoeial Brookfield method). Reference values: water = 1 cP at 20 °C (the famous calibration baseline; viscosity standards are sold traceable to NIST in mPa·s / cP units), SAE 10W30 motor oil at 100 °C ~12 cP, latex paint 500-1,500 cP, ketchup ~50,000 cP (highly shear-thinning so the exact number depends on shear rate).
It belongs to the metric measurement system.
Centipoise are commonly used in lubricant selection, chemical processing, and fluid dynamics.
Understanding Pounds per foot-second
The Pound per foot-second (symbol: lb/(ft·s)) is a unit of dynamic viscosity. An imperial dynamic-viscosity unit using pound-mass per foot-second (≈ 1.4882 Pa·s per NIST SP 811 = 1,488 cP). Primarily encountered in US petroleum engineering (older API and SPE journal articles quote downhole-fluid viscosities in lb/(ft·s) alongside cP for drilling-fluid rheology and well-cementing calcs per API RP 13B), legacy ASME fluid-mechanics and heat-transfer textbooks (older editions of Streeter, McCabe-Smith-Harriott, Bird-Stewart-Lightfoot, Incropera-DeWitt), and HVAC calculations performed in fully-imperial unit systems where consistency with lb / ft / s eliminates conversion factors in Reynolds-number and Prandtl-number dimensionless-group formulas. Most modern US engineering has migrated to centipoise / Pa·s for new work; lb/(ft·s) is most useful for interpreting pre-1990s US-edition specifications, journal articles, and ASME-code background calculation derivations. Convert lb/(ft·s) to Pa·s by multiplying by 1.4882; to cP / mPa·s by multiplying by 1,488.2; to lb/(ft·hr) by multiplying by 3,600.
It belongs to the imperial measurement system.
Pounds per foot-second are commonly used in lubricant selection, chemical processing, and fluid dynamics.
Why Convert Centipoise to Pounds per foot-second?
Converting between Centipoise and Pounds per foot-second is a frequent requirement for engineers, scientists, and students working with dynamic viscosity values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate dynamic viscosity conversion is essential.
Frequently Asked Questions
How do I convert Centipoise to Pounds per foot-second?
A CGS dynamic-viscosity unit equal to exactly 0. To convert Centipoise to Pounds per foot-second, multiply by 6.7197e-4. For example, 25 cP equals 0.0167993 lb/(ft·s).
How many Pounds per foot-second are in 1 Centipoise?
There are 0.000671971 Pounds per foot-second in 1 Centipoise.
How many Centipoise are in 1 Pound per foot-second?
There are 1488.16 Centipoise in 1 Pound per foot-second.
What is the formula for Centipoise to Pound per foot-second conversion?
The formula is: multiply by 6.7197e-4. This means 1 cP = 0.000671971 lb/(ft·s).
Is a Centipoise bigger than a Pound per foot-second?
Yes. One Centipoise is larger than one Pound per foot-second because 1 cP equals 0.000671971 lb/(ft·s), which is less than 1.
When do you need to convert between Centipoise and Pounds per foot-second?
An imperial dynamic-viscosity unit using pound-mass per foot-second (≈ 1. Centipoise and Pound per foot-second are both dynamic viscosity units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.