Convert Pounds per hour to Grams per second
Instantly convert Pounds per hour (lb/hr) to Grams per second (g/s) with our free online calculator.
Formula: lb/hr to g/s — multiply by 0.125998
Reference Table
| Pounds per hour (lb/hr) | Grams per second (g/s) |
|---|---|
| 1 | 0.125998 |
| 5 | 0.62999 |
| 10 | 1.25998 |
| 25 | 3.14995 |
| 50 | 6.2999 |
| 100 | 12.5998 |
How to Convert Pounds per hour to Grams per second
Formula
To convert Pounds per hour (lb/hr) to Grams per second (g/s): multiply by 0.125998
Step-by-Step
- Start with your value in Pounds per hour (lb/hr).
- Multiply by 0.125998 to perform the conversion.
- The result is your value expressed in Grams per second (g/s).
Conversion Factor
1 lb/hr = 0.125998 g/s
Reverse Factor
1 g/s = 7.93663 lb/hr
Worked Example
Convert 25 Pounds per hour to Grams per second: 25 lb/hr = 3.14995 g/s
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 Gram per second (g/s)
A metric mass-flow unit equal to exactly 10⁻³ kg/s. g/s is the working unit for small-scale and instrumentation-grade mass-flow measurement applications: automotive Mass Air Flow (MAF) sensor output (typical idle 2-4 g/s, cruise 10-30 g/s, wide-open-throttle on a 3.5 L V6 ~100-180 g/s), engine-management data-logging (HP Tuners, EFILive, Cobb AccessPort, OpenECU all report MAF in g/s for North American vehicles), automotive dyno-tuning and powertrain calibration software, OBD-II Mode 01 PID 0x10 (MAF rate) which is defined as g/s per SAE J1979 and ISO 15031-5, laboratory fuel-injector flow-bench measurement using SAE J1832 procedures, medical respiratory-gas delivery (HFNC high-flow nasal cannula 60-120 g/s of warmed/humidified air-O₂ mix per AARC Clinical Practice Guidelines), small-scale chemical-process dosing (Bronkhorst / Sensirion / Honeywell mass-flow controllers commonly used in semiconductor fabs and pharmaceutical manufacturing), and analytical-instrument carrier-gas flows. Convert g/s to kg/s by dividing by 1,000; to lb/min by multiplying by 0.1323; to kg/hr by multiplying by 3.6.
Quick Facts
- 1 Pound per hour equals 0.125998 Grams per second
- 1 Gram per second equals 7.93663 Pounds per hour
- Pound per hour is a unit of mass flow rate
- Gram per second 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 Gram per second belongs to the metric system
Common Pound per hour to Gram per second Conversions
| Pounds per hour (lb/hr) | Grams per second (g/s) |
|---|---|
| 0.01 | 0.00125998 |
| 0.1 | 0.0125998 |
| 0.25 | 0.0314995 |
| 0.5 | 0.062999 |
| 1 | 0.125998 |
| 2 | 0.251996 |
| 3 | 0.377994 |
| 5 | 0.62999 |
| 10 | 1.25998 |
| 15 | 1.88997 |
| 20 | 2.51996 |
| 25 | 3.14995 |
| 50 | 6.2999 |
| 75 | 9.44985 |
| 100 | 12.5998 |
| 250 | 31.4995 |
| 500 | 62.999 |
| 1000 | 125.998 |
| 5000 | 629.99 |
| 10000 | 1259.98 |
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 Grams per second
The Gram per second (symbol: g/s) is a unit of mass flow rate. A metric mass-flow unit equal to exactly 10⁻³ kg/s. g/s is the working unit for small-scale and instrumentation-grade mass-flow measurement applications: automotive Mass Air Flow (MAF) sensor output (typical idle 2-4 g/s, cruise 10-30 g/s, wide-open-throttle on a 3.5 L V6 ~100-180 g/s), engine-management data-logging (HP Tuners, EFILive, Cobb AccessPort, OpenECU all report MAF in g/s for North American vehicles), automotive dyno-tuning and powertrain calibration software, OBD-II Mode 01 PID 0x10 (MAF rate) which is defined as g/s per SAE J1979 and ISO 15031-5, laboratory fuel-injector flow-bench measurement using SAE J1832 procedures, medical respiratory-gas delivery (HFNC high-flow nasal cannula 60-120 g/s of warmed/humidified air-O₂ mix per AARC Clinical Practice Guidelines), small-scale chemical-process dosing (Bronkhorst / Sensirion / Honeywell mass-flow controllers commonly used in semiconductor fabs and pharmaceutical manufacturing), and analytical-instrument carrier-gas flows. Convert g/s to kg/s by dividing by 1,000; to lb/min by multiplying by 0.1323; to kg/hr by multiplying by 3.6.
It belongs to the metric measurement system.
Grams per second are commonly used in chemical processing, fuel systems, and environmental monitoring.
Why Convert Pounds per hour to Grams per second?
Converting between Pounds per hour and Grams per second 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 Grams per second?
An imperial mass-flow unit (≈ 0. To convert Pounds per hour to Grams per second, multiply by 0.125998. For example, 25 lb/hr equals 3.14995 g/s.
How many Grams per second are in 1 Pound per hour?
There are 0.125998 Grams per second in 1 Pound per hour.
How many Pounds per hour are in 1 Gram per second?
There are 7.93663 Pounds per hour in 1 Gram per second.
What is the formula for Pound per hour to Gram per second conversion?
The formula is: multiply by 0.125998. This means 1 lb/hr = 0.125998 g/s.
Is a Pound per hour bigger than a Gram per second?
Yes. One Pound per hour is larger than one Gram per second because 1 lb/hr equals 0.125998 g/s, which is less than 1.
When do you need to convert between Pounds per hour and Grams per second?
A metric mass-flow unit equal to exactly 10⁻³ kg/s. Pound per hour and Gram per second 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.