Convert Pounds per second to Pounds per hour
Instantly convert Pounds per second (lb/s) to Pounds per hour (lb/hr) with our free online calculator.
Formula: lb/s to lb/hr — multiply by 3599.99
Reference Table
| Pounds per second (lb/s) | Pounds per hour (lb/hr) |
|---|---|
| 1 | 3599.99 |
| 5 | 18000 |
| 10 | 35999.9 |
| 25 | 89999.8 |
| 50 | 180000 |
| 100 | 359999 |
How to Convert Pounds per second to Pounds per hour
Formula
To convert Pounds per second (lb/s) to Pounds per hour (lb/hr): multiply by 3599.99
Step-by-Step
- Start with your value in Pounds per second (lb/s).
- Multiply by 3599.99 to perform the conversion.
- The result is your value expressed in Pounds per hour (lb/hr).
Conversion Factor
1 lb/s = 3599.99 lb/hr
Reverse Factor
1 lb/hr = 0.000277778 lb/s
Worked Example
Convert 25 Pounds per second to Pounds per hour: 25 lb/s = 89999.8 lb/hr
About Pound per second (lb/s)
An imperial mass-flow unit (≈ 0.453592 kg/s per NIST SP 811). lb/s is the dominant working unit in US aerospace engineering for turbomachinery: turbojet, turbofan, and turboprop engine performance data published by P&W, GE Aviation, Honeywell, and Rolls-Royce North America quote corrected and uncorrected mass flow in lb/s on type-certificate data sheets and FAR Part 33 power-plant certification documents per FAA Advisory Circular 33-2B. US-edition combustion textbooks (Glassman, Turns, Cengel & Boles) and gas-turbine engineering textbooks (Mattingly, Saravanamuttoo, Boyce) use lb/s throughout. Reference values: a GE F404 turbojet (F/A-18 Hornet) airflow ~146 lb/s at takeoff; GE9X (Boeing 777X) ~1,600 lb/s; CF6-80C2 (747-400) ~1,769 lb/s; F-1 first-stage rocket engine (Saturn V) ~5,683 lb/s of RP-1 + LOX; SpaceX Merlin 1D ~520 lb/s. Convert lb/s to kg/s by multiplying by 0.4536; to lb/hr by multiplying by 3,600; to lb/min by multiplying by 60.
About Pound per hour (lb/hr)
An imperial mass-flow unit (≈ 0.453592 kg/hr = 1.25998 × 10⁻⁴ kg/s). lb/hr is the universal working unit in US HVAC, steam engineering, petroleum refining, and chemical process plants. US boiler ratings are traditionally given in lb/hr of saturated steam output: a 'boiler horsepower' (BHP) is defined as 34.5 lb/hr of saturated steam at 212 °F per ASME PTC 4.1, so a '500 BHP boiler' produces 17,250 lb/hr. ASHRAE Handbook chapters on humidification, central plants, district heating, and refrigeration all use lb/hr. Refinery feed rates appear in lb/hr in older facility documentation (newer plants increasingly use kg/hr internationally and BPD for crude). Fuel consumption on large industrial engines, marine prime movers (with bunker fuel oil), and standby diesels is routinely quoted in lb/hr.
Quick Facts
- 1 Pound per second equals 3599.99 Pounds per hour
- 1 Pound per hour equals 0.000277778 Pounds per second
- Pound per second is a unit of mass flow rate
- Pound per hour is a unit of mass flow rate
- This conversion is commonly used in chemical processing, fuel systems, and environmental monitoring
- The Pound per second belongs to the imperial system
Common Pound per second to Pound per hour Conversions
| Pounds per second (lb/s) | Pounds per hour (lb/hr) |
|---|---|
| 0.01 | 35.9999 |
| 0.1 | 359.999 |
| 0.25 | 899.998 |
| 0.5 | 1800 |
| 1 | 3599.99 |
| 2 | 7199.99 |
| 3 | 10800 |
| 5 | 18000 |
| 10 | 35999.9 |
| 15 | 53999.9 |
| 20 | 71999.9 |
| 25 | 89999.8 |
| 50 | 180000 |
| 75 | 270000 |
| 100 | 359999 |
| 250 | 899998 |
| 500 | 1800000 |
| 1000 | 3599990 |
| 5000 | 18000000 |
| 10000 | 35999900 |
Understanding Pounds per second
The Pound per second (symbol: lb/s) is a unit of mass flow rate. An imperial mass-flow unit (≈ 0.453592 kg/s per NIST SP 811). lb/s is the dominant working unit in US aerospace engineering for turbomachinery: turbojet, turbofan, and turboprop engine performance data published by P&W, GE Aviation, Honeywell, and Rolls-Royce North America quote corrected and uncorrected mass flow in lb/s on type-certificate data sheets and FAR Part 33 power-plant certification documents per FAA Advisory Circular 33-2B. US-edition combustion textbooks (Glassman, Turns, Cengel & Boles) and gas-turbine engineering textbooks (Mattingly, Saravanamuttoo, Boyce) use lb/s throughout. Reference values: a GE F404 turbojet (F/A-18 Hornet) airflow ~146 lb/s at takeoff; GE9X (Boeing 777X) ~1,600 lb/s; CF6-80C2 (747-400) ~1,769 lb/s; F-1 first-stage rocket engine (Saturn V) ~5,683 lb/s of RP-1 + LOX; SpaceX Merlin 1D ~520 lb/s. Convert lb/s to kg/s by multiplying by 0.4536; to lb/hr by multiplying by 3,600; to lb/min by multiplying by 60.
It belongs to the imperial measurement system.
Pounds per second are commonly used in chemical processing, fuel systems, and environmental monitoring.
Understanding Pounds per hour
The Pound per hour (symbol: lb/hr) is a unit of mass flow rate. An imperial mass-flow unit (≈ 0.453592 kg/hr = 1.25998 × 10⁻⁴ kg/s). lb/hr is the universal working unit in US HVAC, steam engineering, petroleum refining, and chemical process plants. US boiler ratings are traditionally given in lb/hr of saturated steam output: a 'boiler horsepower' (BHP) is defined as 34.5 lb/hr of saturated steam at 212 °F per ASME PTC 4.1, so a '500 BHP boiler' produces 17,250 lb/hr. ASHRAE Handbook chapters on humidification, central plants, district heating, and refrigeration all use lb/hr. Refinery feed rates appear in lb/hr in older facility documentation (newer plants increasingly use kg/hr internationally and BPD for crude). Fuel consumption on large industrial engines, marine prime movers (with bunker fuel oil), and standby diesels is routinely quoted in lb/hr.
It belongs to the imperial measurement system.
Pounds per hour are commonly used in chemical processing, fuel systems, and environmental monitoring.
Why Convert Pounds per second to Pounds per hour?
Converting between Pounds per second and Pounds per hour is a frequent requirement for engineers, scientists, and students working with mass flow rate 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 mass flow rate conversion is essential.
Frequently Asked Questions
How do I convert Pounds per second to Pounds per hour?
An imperial mass-flow unit (≈ 0. To convert Pounds per second to Pounds per hour, multiply by 3599.99. For example, 25 lb/s equals 89999.8 lb/hr.
How many Pounds per hour are in 1 Pound per second?
There are 3599.99 Pounds per hour in 1 Pound per second.
How many Pounds per second are in 1 Pound per hour?
There are 0.000277778 Pounds per second in 1 Pound per hour.
What is the formula for Pound per second to Pound per hour conversion?
The formula is: multiply by 3599.99. This means 1 lb/s = 3599.99 lb/hr.
Is a Pound per second bigger than a Pound per hour?
No. One Pound per second is smaller than one Pound per hour because 1 lb/s equals 3599.99 lb/hr, which is greater than 1.
When do you need to convert between Pounds per second and Pounds per hour?
An imperial mass-flow unit (≈ 0. Pound per second and Pound per hour are both mass flow 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.