Mass Flow Rate Converter
Mass flow rate is how much mass passes a point per unit of time. The SI unit is the kilogram per second. Process engineering works in kilograms or tonnes per hour, US practice uses pounds per hour, and compressor and boiler ratings mix the two freely.
36 units supported Base unit kilogram per second (kg/s)
Multiply the number of kilograms per hour by 0.000277777777778 to get kilograms per second. How this is calculated
About mass flow rate conversion
Mass Flow Rate conversion is commonly needed when process plants, boilers, compressors, and dosing systems. Mass flow stays constant through a system even where temperature and pressure change the volume, which is why process engineers prefer it to volumetric flow.
Popular conversions
Convert Kilogram per Hour to other mass flow rate units
1 kg/h expressed in every other mass flow rate unit on this site.
- Kilogram per Second kg/s 0.00027777778
- Exagram per Second Eg/s 2.7777778e-19
- Petagram per Second Pg/s 2.7777778e-16
- Teragram per Second Tg/s 2.7777778e-13
- Gigagram per Second Gg/s 2.7777778e-10
- Hectogram per Second hg/s 0.0027777778
- Dekagram per Second dag/s 0.027777778
- Decigram per Second dg/s 2.7777778
- Centigram per Second cg/s 27.777778
- Microgram per Second µg/s 277,777.78
- Milligram per Hour mg/h 1,000,000
- Milligram per Day mg/d 24,000,000
- Kilogram per Minute kg/min 0.016666667
- Kilogram per Hour kg/h 1
- Kilogram per Day kg/d 24
- Gram per Second g/s 0.27777778
- Gram per Minute g/min 16.666667
- Gram per Hour g/h 1,000
- Gram per Day g/d 24,000
- Milligram per Second mg/s 277.77778
- Milligram per Minute mg/min 16,666.667
- Metric Ton per Second t/s 2.7777778e-7
- Metric Ton per Minute t/min 0.000016666667
- Metric Ton per Hour t/h 0.001
- Metric Ton per Day t/d 0.024
- Pound per Second lb/s 0.00061239517
- Pound per Minute lb/min 0.03674371
- Pound per Hour lb/h 2.2046226
- Pound per Day lb/d 52.910943
- Ounce per Second oz/s 0.0097983228
- Ounce per Minute oz/min 0.58789937
- Ounce per Hour oz/h 35.273962
- Short Ton per Hour ton/h (US) 0.0011023113
- Short Ton per Day ton/d (US) 0.026455471
- Long Ton per Hour ton/h (UK) 0.00098420653
- Long Ton per Day ton/d (UK) 0.023620957
Complete list of mass flow rate units
All 36 units this converter supports, each stated against the kilogram per second (kg/s).
| Unit | Symbol | System | In kilograms per second | Conversions |
|---|---|---|---|---|
| Kilogram per Second | kg/s | SI | base unit (kg/s) | kg/s to t/h |
| Exagram per Second | Eg/s | SI | 1 Eg/s = 1e+15 kg/s | — |
| Petagram per Second | Pg/s | SI | 1 Pg/s = 1,000,000,000,000 kg/s | — |
| Teragram per Second | Tg/s | SI | 1 Tg/s = 1,000,000,000 kg/s | — |
| Gigagram per Second | Gg/s | SI | 1 Gg/s = 1,000,000 kg/s | — |
| Hectogram per Second | hg/s | SI | 1 hg/s = 0.1 kg/s | — |
| Dekagram per Second | dag/s | SI | 1 dag/s = 0.01 kg/s | — |
| Decigram per Second | dg/s | SI | 1 dg/s = 0.0001 kg/s | — |
| Centigram per Second | cg/s | SI | 1 cg/s = 0.00001 kg/s | — |
| Microgram per Second | µg/s | SI | 1 µg/s = 1e-9 kg/s | — |
| Milligram per Hour | mg/h | SI | 1 mg/h = 2.77777777778e-10 kg/s | — |
| Milligram per Day | mg/d | SI | 1 mg/d = 1.15740740741e-11 kg/s | — |
| Kilogram per Minute | kg/min | SI | 1 kg/min = 0.0166666666667 kg/s | — |
| Kilogram per Hour | kg/h | SI | 1 kg/h = 0.000277777777778 kg/s | kg/h to lb/h |
| Kilogram per Day | kg/d | SI | 1 kg/d = 0.0000115740740741 kg/s | — |
| Gram per Second | g/s | Metric | 1 g/s = 0.001 kg/s | — |
| Gram per Minute | g/min | Metric | 1 g/min = 0.0000166666666667 kg/s | — |
| Gram per Hour | g/h | Metric | 1 g/h = 2.77777777778e-7 kg/s | — |
| Gram per Day | g/d | Metric | 1 g/d = 1.15740740741e-8 kg/s | — |
| Milligram per Second | mg/s | Metric | 1 mg/s = 0.000001 kg/s | — |
| Milligram per Minute | mg/min | Metric | 1 mg/min = 1.66666666667e-8 kg/s | — |
| Metric Ton per Second | t/s | Metric | 1 t/s = 1,000 kg/s | — |
| Metric Ton per Minute | t/min | Metric | 1 t/min = 16.6666666667 kg/s | — |
| Metric Ton per Hour | t/h | Metric | 1 t/h = 0.277777777778 kg/s | t/h to kg/s |
| Metric Ton per Day | t/d | Metric | 1 t/d = 0.0115740740741 kg/s | — |
| Pound per Second | lb/s | Imperial | 1 lb/s = 0.45359237 kg/s | — |
| Pound per Minute | lb/min | Imperial | 1 lb/min = 0.00755987283333 kg/s | — |
| Pound per Hour | lb/h | Imperial | 1 lb/h = 0.000125997880556 kg/s | lb/h to kg/h |
| Pound per Day | lb/d | Imperial | 1 lb/d = 0.00000524991168981 kg/s | — |
| Ounce per Second | oz/s | Imperial | 1 oz/s = 0.028349523125 kg/s | — |
| Ounce per Minute | oz/min | Imperial | 1 oz/min = 0.000472492052083 kg/s | — |
| Ounce per Hour | oz/h | Imperial | 1 oz/h = 0.00000787486753472 kg/s | — |
| Short Ton per Hour | ton/h (US) | US | 1 ton/h (US) = 0.251995761111 kg/s | — |
| Short Ton per Day | ton/d (US) | US | 1 ton/d (US) = 0.0104998233796 kg/s | — |
| Long Ton per Hour | ton/h (UK) | Imperial | 1 ton/h (UK) = 0.282235252444 kg/s | — |
| Long Ton per Day | ton/d (UK) | Imperial | 1 ton/d (UK) = 0.0117598021852 kg/s | — |
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Frequently asked questions
What is the base unit for mass flow rate?
Mass Flow Rate conversions on this site are calculated against the kilogram per second (kg/s).
Which mass flow rate units can I convert?
You can convert between 36 units, including kilogram per second, exagram per second, petagram per second, teragram per second, and more.
Where is mass flow rate conversion useful?
It is commonly needed when process plants, boilers, compressors, and dosing systems.
Does this converter mix measurement systems?
The converter supports SI, Metric, Imperial, US units and keeps their exact definitions separate so results stay accurate.
Related categories
Conversion factors are based on internationally agreed unit definitions. See our methodology and sources for details on how these values are verified.