Convert Kilograms per hour to Grams per second
Instantly convert Kilograms per hour (kg/hr) to Grams per second (g/s) with our free online calculator.
Formula: kg/hr to g/s — multiply by 0.277778
Reference Table
| Kilograms per hour (kg/hr) | Grams per second (g/s) |
|---|---|
| 1 | 0.277778 |
| 5 | 1.38889 |
| 10 | 2.77778 |
| 25 | 6.94444 |
| 50 | 13.8889 |
| 100 | 27.7778 |
How to Convert Kilograms per hour to Grams per second
Formula
To convert Kilograms per hour (kg/hr) to Grams per second (g/s): multiply by 0.277778
Step-by-Step
- Start with your value in Kilograms per hour (kg/hr).
- Multiply by 0.277778 to perform the conversion.
- The result is your value expressed in Grams per second (g/s).
Conversion Factor
1 kg/hr = 0.277778 g/s
Reverse Factor
1 g/s = 3.6 kg/hr
Worked Example
Convert 25 Kilograms per hour to Grams per second: 25 kg/hr = 6.94444 g/s
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.
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 Kilogram per hour equals 0.277778 Grams per second
- 1 Gram per second equals 3.6 Kilograms per hour
- Kilogram 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 Kilogram per hour belongs to the metric system
Common Kilogram per hour to Gram per second Conversions
| Kilograms per hour (kg/hr) | Grams per second (g/s) |
|---|---|
| 0.01 | 0.00277778 |
| 0.1 | 0.0277778 |
| 0.25 | 0.0694444 |
| 0.5 | 0.138889 |
| 1 | 0.277778 |
| 2 | 0.555556 |
| 3 | 0.833333 |
| 5 | 1.38889 |
| 10 | 2.77778 |
| 15 | 4.16667 |
| 20 | 5.55556 |
| 25 | 6.94444 |
| 50 | 13.8889 |
| 75 | 20.8333 |
| 100 | 27.7778 |
| 250 | 69.4444 |
| 500 | 138.889 |
| 1000 | 277.778 |
| 5000 | 1388.89 |
| 10000 | 2777.78 |
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.
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 Kilograms per hour to Grams per second?
Converting between Kilograms 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 Kilograms per hour to Grams per second?
A metric mass-flow unit equal to exactly 1/3600 kg/s. To convert Kilograms per hour to Grams per second, multiply by 0.277778. For example, 25 kg/hr equals 6.94444 g/s.
How many Grams per second are in 1 Kilogram per hour?
There are 0.277778 Grams per second in 1 Kilogram per hour.
How many Kilograms per hour are in 1 Gram per second?
There are 3.6 Kilograms per hour in 1 Gram per second.
What is the formula for Kilogram per hour to Gram per second conversion?
The formula is: multiply by 0.277778. This means 1 kg/hr = 0.277778 g/s.
Is a Kilogram per hour bigger than a Gram per second?
Yes. One Kilogram per hour is larger than one Gram per second because 1 kg/hr equals 0.277778 g/s, which is less than 1.
When do you need to convert between Kilograms per hour and Grams per second?
A metric mass-flow unit equal to exactly 10⁻³ kg/s. Kilogram 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.