Convert Pounds per minute to Pounds per hour
Instantly convert Pounds per minute (lb/min) to Pounds per hour (lb/hr) with our free online calculator.
Formula: lb/min to lb/hr — multiply by 59.9999
Reference Table
| Pounds per minute (lb/min) | Pounds per hour (lb/hr) |
|---|---|
| 1 | 59.9999 |
| 5 | 300 |
| 10 | 599.999 |
| 25 | 1500 |
| 50 | 3000 |
| 100 | 5999.99 |
How to Convert Pounds per minute to Pounds per hour
Formula
To convert Pounds per minute (lb/min) to Pounds per hour (lb/hr): multiply by 59.9999
Step-by-Step
- Start with your value in Pounds per minute (lb/min).
- Multiply by 59.9999 to perform the conversion.
- The result is your value expressed in Pounds per hour (lb/hr).
Conversion Factor
1 lb/min = 59.9999 lb/hr
Reverse Factor
1 lb/hr = 0.0166667 lb/min
Worked Example
Convert 25 Pounds per minute to Pounds per hour: 25 lb/min = 1500 lb/hr
About Pound per minute (lb/min)
An imperial mass-flow unit equal to exactly 1/60 of lb/s ≈ 7.5599 × 10⁻³ kg/s. lb/min is used for medium-timescale US engineering applications where the per-second timebase would give awkwardly small decimals and the per-hour timebase too-large numbers. Common uses: HVAC humidification (commercial steam-injection humidifiers rated 5-100 lb/min per ASHRAE Handbook), compressed-air-system purge and surge calculations, pneumatic-conveying mass-handling rates per CEMA standards (food-processing line dispensing of flour, sugar, salt, dried fruit; pharmaceutical excipient transfer per ISPE Baseline Guide for solid-dosage manufacturing), powder-coating gun flow rates (typical 1-5 lb/min), legacy reciprocating internal-combustion-engine air-flow specifications (lb/min was the standard automotive MAF unit before the industry transitioned to g/s in the early 2000s on OBD-II Mode 01 PID 0x10 per SAE J1979), and packaging-line throughput specifications for bulk consumer products. Convert lb/min to kg/s by multiplying by 7.5599 × 10⁻³; to g/s by multiplying by 7.5599; to lb/hr by multiplying by 60; to lb/s by dividing 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 minute equals 59.9999 Pounds per hour
- 1 Pound per hour equals 0.0166667 Pounds per minute
- Pound per minute 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 minute belongs to the imperial system
Common Pound per minute to Pound per hour Conversions
| Pounds per minute (lb/min) | Pounds per hour (lb/hr) |
|---|---|
| 0.01 | 0.599999 |
| 0.1 | 5.99999 |
| 0.25 | 15 |
| 0.5 | 30 |
| 1 | 59.9999 |
| 2 | 120 |
| 3 | 180 |
| 5 | 300 |
| 10 | 599.999 |
| 15 | 899.999 |
| 20 | 1200 |
| 25 | 1500 |
| 50 | 3000 |
| 75 | 4499.99 |
| 100 | 5999.99 |
| 250 | 15000 |
| 500 | 30000 |
| 1000 | 59999.9 |
| 5000 | 300000 |
| 10000 | 599999 |
Understanding Pounds per minute
The Pound per minute (symbol: lb/min) is a unit of mass flow rate. An imperial mass-flow unit equal to exactly 1/60 of lb/s ≈ 7.5599 × 10⁻³ kg/s. lb/min is used for medium-timescale US engineering applications where the per-second timebase would give awkwardly small decimals and the per-hour timebase too-large numbers. Common uses: HVAC humidification (commercial steam-injection humidifiers rated 5-100 lb/min per ASHRAE Handbook), compressed-air-system purge and surge calculations, pneumatic-conveying mass-handling rates per CEMA standards (food-processing line dispensing of flour, sugar, salt, dried fruit; pharmaceutical excipient transfer per ISPE Baseline Guide for solid-dosage manufacturing), powder-coating gun flow rates (typical 1-5 lb/min), legacy reciprocating internal-combustion-engine air-flow specifications (lb/min was the standard automotive MAF unit before the industry transitioned to g/s in the early 2000s on OBD-II Mode 01 PID 0x10 per SAE J1979), and packaging-line throughput specifications for bulk consumer products. Convert lb/min to kg/s by multiplying by 7.5599 × 10⁻³; to g/s by multiplying by 7.5599; to lb/hr by multiplying by 60; to lb/s by dividing by 60.
It belongs to the imperial measurement system.
Pounds per minute 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 minute to Pounds per hour?
Converting between Pounds per minute 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 minute to Pounds per hour?
An imperial mass-flow unit equal to exactly 1/60 of lb/s ≈ 7. To convert Pounds per minute to Pounds per hour, multiply by 59.9999. For example, 25 lb/min equals 1500 lb/hr.
How many Pounds per hour are in 1 Pound per minute?
There are 59.9999 Pounds per hour in 1 Pound per minute.
How many Pounds per minute are in 1 Pound per hour?
There are 0.0166667 Pounds per minute in 1 Pound per hour.
What is the formula for Pound per minute to Pound per hour conversion?
The formula is: multiply by 59.9999. This means 1 lb/min = 59.9999 lb/hr.
Is a Pound per minute bigger than a Pound per hour?
No. One Pound per minute is smaller than one Pound per hour because 1 lb/min equals 59.9999 lb/hr, which is greater than 1.
When do you need to convert between Pounds per minute and Pounds per hour?
An imperial mass-flow unit (≈ 0. Pound per minute 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.