Convert Pounds per hour to Kilograms per hour
Instantly convert Pounds per hour (lb/hr) to Kilograms per hour (kg/hr) with our free online calculator.
Formula: lb/hr to kg/hr — multiply by 0.453593
Reference Table
| Pounds per hour (lb/hr) | Kilograms per hour (kg/hr) |
|---|---|
| 1 | 0.453593 |
| 5 | 2.26796 |
| 10 | 4.53593 |
| 25 | 11.3398 |
| 50 | 22.6796 |
| 100 | 45.3593 |
How to Convert Pounds per hour to Kilograms per hour
Formula
To convert Pounds per hour (lb/hr) to Kilograms per hour (kg/hr): multiply by 0.453593
Step-by-Step
- Start with your value in Pounds per hour (lb/hr).
- Multiply by 0.453593 to perform the conversion.
- The result is your value expressed in Kilograms per hour (kg/hr).
Conversion Factor
1 lb/hr = 0.453593 kg/hr
Reverse Factor
1 kg/hr = 2.20462 lb/hr
Worked Example
Convert 25 Pounds per hour to Kilograms per hour: 25 lb/hr = 11.3398 kg/hr
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.
About Kilogram per hour (kg/hr)
A metric mass-flow unit equal to exactly 1/3600 kg/s. kg/hr is the working unit for industrial process streams, boiler steam-output ratings (DIN EN 12952 water-tube boiler specs and EN 12953 shell-boiler specs are typically quoted in kg/hr or t/hr), petroleum refinery throughput, chemical-plant material balances (Aspen HYSYS, CHEMCAD, AVEVA SimCentral, gPROMS default unit for material-stream rates), bulk material handling, food and beverage manufacturing (production-line throughput per Codex Alimentarius), and HVAC make-up-water rates in commercial humidification systems. Reference values: a typical industrial steam boiler produces 5,000-50,000 kg/hr of saturated steam; a refinery atmospheric-crude distillation column processes 50,000-500,000 kg/hr of feed; a 100 MW gas-turbine combined-cycle gas-flow ~360,000 kg/hr air; a craft brewery's wort kettle 500-5,000 kg/hr; an espresso machine steam wand ~15 kg/hr of vapour. Convert kg/hr to lb/hr by multiplying by 2.2046; to t/hr by dividing by 1,000; to kg/s by dividing by 3,600.
Quick Facts
- 1 Pound per hour equals 0.453593 Kilograms per hour
- 1 Kilogram per hour equals 2.20462 Pounds per hour
- Pound per hour is a unit of mass flow rate
- Kilogram 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 hour belongs to the imperial system
- The Kilogram per hour belongs to the metric system
Common Pound per hour to Kilogram per hour Conversions
| Pounds per hour (lb/hr) | Kilograms per hour (kg/hr) |
|---|---|
| 0.01 | 0.00453593 |
| 0.1 | 0.0453593 |
| 0.25 | 0.113398 |
| 0.5 | 0.226796 |
| 1 | 0.453593 |
| 2 | 0.907186 |
| 3 | 1.36078 |
| 5 | 2.26796 |
| 10 | 4.53593 |
| 15 | 6.80389 |
| 20 | 9.07186 |
| 25 | 11.3398 |
| 50 | 22.6796 |
| 75 | 34.0195 |
| 100 | 45.3593 |
| 250 | 113.398 |
| 500 | 226.796 |
| 1000 | 453.593 |
| 5000 | 2267.96 |
| 10000 | 4535.93 |
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.
Understanding Kilograms per hour
The Kilogram per hour (symbol: kg/hr) is a unit of mass flow rate. A metric mass-flow unit equal to exactly 1/3600 kg/s. kg/hr is the working unit for industrial process streams, boiler steam-output ratings (DIN EN 12952 water-tube boiler specs and EN 12953 shell-boiler specs are typically quoted in kg/hr or t/hr), petroleum refinery throughput, chemical-plant material balances (Aspen HYSYS, CHEMCAD, AVEVA SimCentral, gPROMS default unit for material-stream rates), bulk material handling, food and beverage manufacturing (production-line throughput per Codex Alimentarius), and HVAC make-up-water rates in commercial humidification systems. Reference values: a typical industrial steam boiler produces 5,000-50,000 kg/hr of saturated steam; a refinery atmospheric-crude distillation column processes 50,000-500,000 kg/hr of feed; a 100 MW gas-turbine combined-cycle gas-flow ~360,000 kg/hr air; a craft brewery's wort kettle 500-5,000 kg/hr; an espresso machine steam wand ~15 kg/hr of vapour. Convert kg/hr to lb/hr by multiplying by 2.2046; to t/hr by dividing by 1,000; to kg/s by dividing by 3,600.
It belongs to the metric measurement system.
Kilograms per hour are commonly used in chemical processing, fuel systems, and environmental monitoring.
Why Convert Pounds per hour to Kilograms per hour?
Converting between Pounds per hour and Kilograms 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 hour to Kilograms per hour?
An imperial mass-flow unit (≈ 0. To convert Pounds per hour to Kilograms per hour, multiply by 0.453593. For example, 25 lb/hr equals 11.3398 kg/hr.
How many Kilograms per hour are in 1 Pound per hour?
There are 0.453593 Kilograms per hour in 1 Pound per hour.
How many Pounds per hour are in 1 Kilogram per hour?
There are 2.20462 Pounds per hour in 1 Kilogram per hour.
What is the formula for Pound per hour to Kilogram per hour conversion?
The formula is: multiply by 0.453593. This means 1 lb/hr = 0.453593 kg/hr.
Is a Pound per hour bigger than a Kilogram per hour?
Yes. One Pound per hour is larger than one Kilogram per hour because 1 lb/hr equals 0.453593 kg/hr, which is less than 1.
When do you need to convert between Pounds per hour and Kilograms per hour?
A metric mass-flow unit equal to exactly 1/3600 kg/s. Pound per hour and Kilogram 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.