Convert Centipoise to Pounds per foot-hour
Instantly convert Centipoise (cP) to Pounds per foot-hour (lb/(ft·hr)) with our free online calculator.
Formula: cP to lb/(ft·hr) — multiply by 2.41909
Reference Table
| Centipoise (cP) | Pounds per foot-hour (lb/(ft·hr)) |
|---|---|
| 1 | 2.41909 |
| 5 | 12.0954 |
| 10 | 24.1909 |
| 25 | 60.4772 |
| 50 | 120.954 |
| 100 | 241.909 |
How to Convert Centipoise to Pounds per foot-hour
Formula
To convert Centipoise (cP) to Pounds per foot-hour (lb/(ft·hr)): multiply by 2.41909
Step-by-Step
- Start with your value in Centipoise (cP).
- Multiply by 2.41909 to perform the conversion.
- The result is your value expressed in Pounds per foot-hour (lb/(ft·hr)).
Conversion Factor
1 cP = 2.41909 lb/(ft·hr)
Reverse Factor
1 lb/(ft·hr) = 0.413379 cP
Worked Example
Convert 25 Centipoise to Pounds per foot-hour: 25 cP = 60.4772 lb/(ft·hr)
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-hour (lb/(ft·hr))
An imperial dynamic-viscosity unit using pound-mass per foot-hour (≈ 4.1338 × 10⁻⁴ Pa·s = 0.4134 cP per NIST SP 811 = exactly 1/3,600 of lb/(ft·s)). Used in US process-engineering and HVAC contexts where the natural process timescale is hours rather than seconds — making the time-base of the viscosity unit match the time-base of the mass-flow or heat-flow calculation it appears in, eliminating intermediate unit conversions. Common in heat-transfer-coefficient correlations for gas-phase viscosity at industrial operating conditions (gas viscosity is ~10⁻⁵ Pa·s, which in lb/(ft·hr) becomes ~0.02 — a much more legible number than the SI version). Also appears in older US chemical-engineering handbooks (Perry's pre-2008 editions, McCabe-Smith-Harriott, Bird-Stewart-Lightfoot first edition), refining-process design references where the entire material/energy balance is in lb-h-ft-Btu units, and gas-pipeline transmission design per AGA Report No. 8 and 10 supercompressibility tables. Convert lb/(ft·hr) to Pa·s by multiplying by 4.1338 × 10⁻⁴; to cP by multiplying by 0.4134.
Quick Facts
- 1 Centipoise equals 2.41909 Pounds per foot-hour
- 1 Pound per foot-hour equals 0.413379 Centipoise
- Centipoise is a unit of dynamic viscosity
- Pound per foot-hour 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-hour belongs to the imperial system
Common Centipoise to Pound per foot-hour Conversions
| Centipoise (cP) | Pounds per foot-hour (lb/(ft·hr)) |
|---|---|
| 0.01 | 0.0241909 |
| 0.1 | 0.241909 |
| 0.25 | 0.604772 |
| 0.5 | 1.20954 |
| 1 | 2.41909 |
| 2 | 4.83818 |
| 3 | 7.25726 |
| 5 | 12.0954 |
| 10 | 24.1909 |
| 15 | 36.2863 |
| 20 | 48.3818 |
| 25 | 60.4772 |
| 50 | 120.954 |
| 75 | 181.432 |
| 100 | 241.909 |
| 250 | 604.772 |
| 500 | 1209.54 |
| 1000 | 2419.09 |
| 5000 | 12095.4 |
| 10000 | 24190.9 |
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-hour
The Pound per foot-hour (symbol: lb/(ft·hr)) is a unit of dynamic viscosity. An imperial dynamic-viscosity unit using pound-mass per foot-hour (≈ 4.1338 × 10⁻⁴ Pa·s = 0.4134 cP per NIST SP 811 = exactly 1/3,600 of lb/(ft·s)). Used in US process-engineering and HVAC contexts where the natural process timescale is hours rather than seconds — making the time-base of the viscosity unit match the time-base of the mass-flow or heat-flow calculation it appears in, eliminating intermediate unit conversions. Common in heat-transfer-coefficient correlations for gas-phase viscosity at industrial operating conditions (gas viscosity is ~10⁻⁵ Pa·s, which in lb/(ft·hr) becomes ~0.02 — a much more legible number than the SI version). Also appears in older US chemical-engineering handbooks (Perry's pre-2008 editions, McCabe-Smith-Harriott, Bird-Stewart-Lightfoot first edition), refining-process design references where the entire material/energy balance is in lb-h-ft-Btu units, and gas-pipeline transmission design per AGA Report No. 8 and 10 supercompressibility tables. Convert lb/(ft·hr) to Pa·s by multiplying by 4.1338 × 10⁻⁴; to cP by multiplying by 0.4134.
It belongs to the imperial measurement system.
Pounds per foot-hour are commonly used in lubricant selection, chemical processing, and fluid dynamics.
Why Convert Centipoise to Pounds per foot-hour?
Converting between Centipoise and Pounds per foot-hour 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-hour?
A CGS dynamic-viscosity unit equal to exactly 0. To convert Centipoise to Pounds per foot-hour, multiply by 2.41909. For example, 25 cP equals 60.4772 lb/(ft·hr).
How many Pounds per foot-hour are in 1 Centipoise?
There are 2.41909 Pounds per foot-hour in 1 Centipoise.
How many Centipoise are in 1 Pound per foot-hour?
There are 0.413379 Centipoise in 1 Pound per foot-hour.
What is the formula for Centipoise to Pound per foot-hour conversion?
The formula is: multiply by 2.41909. This means 1 cP = 2.41909 lb/(ft·hr).
Is a Centipoise bigger than a Pound per foot-hour?
No. One Centipoise is smaller than one Pound per foot-hour because 1 cP equals 2.41909 lb/(ft·hr), which is greater than 1.
When do you need to convert between Centipoise and Pounds per foot-hour?
An imperial dynamic-viscosity unit using pound-mass per foot-hour (≈ 4. Centipoise and Pound per foot-hour 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.