Kilograms per Hour to Kilograms per Second (kg/h to kg/s)
1 kilogram per hour (kg/h) = 0.0002777777778 kilograms per second (kg/s). 1 kg/s = 3600 kg/h. Example: 5000 kg/h = 5000 × 0.0002777777778 = 1.388888889 kg/s.
Also searched as kg/h to kg/s, kg/hr to kg/sec and kilogram per hour to kilogram per second.
1 kg/h = 0.0002777777778 kg/s
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk kilogram per hour to kilogram per second converter to paste a column from Excel.
How to Convert Kilogram per Hour to Kilogram per Second
- 1 kg/h = 0.0002777777778 kg/s
- 1 kg/s = 3600 kg/h
- Example: convert 5000 kg/h to kg/s: 5000 kg/h = 5000 × 0.0002777777778 kg/s = 1.388888889 kg/s
Formula
kg/s = kg/h ÷ 3600
Derivation from SI units:
- 1 kg/h = 1/3600 kg/s.
- Mass per unit time: kg/s.
Both units are defined exactly, so the factor is exact. Kilogram per Hour definition: kilogram per hour; Kilogram per Second definition: kilogram per second.
Worked examples
- 3600 kg/h is 1 kg/s.
3600 kg/h × 0.0002777777778 = 1 kg/s - A boiler making 5000 kg/h of steam makes 1.388888889 kg/s.
5000 kg/h × 0.0002777777778 = 1.388888889 kg/s
Kilogram per Hour to Kilogram per Second conversion table
| Kilograms per Hour (kg/h) | Kilograms per Second (kg/s) |
|---|---|
| 1 kg/h | 0.0002777777778 kg/s |
| 10 kg/h | 0.002777777778 kg/s |
| 50 kg/h | 0.01388888889 kg/s |
| 100 kg/h | 0.02777777778 kg/s |
| 250 kg/h | 0.06944444444 kg/s |
| 500 kg/h | 0.1388888889 kg/s |
| 1000 kg/h | 0.2777777778 kg/s |
| 2000 kg/h | 0.5555555556 kg/s |
| 5000 kg/h | 1.388888889 kg/s |
| 10000 kg/h | 2.777777778 kg/s |
Where it's used
Plant flows in kg/h are converted to kg/s for energy balances and SI equations. Divide by 3600.
Kilogram per Hour to other mass flow rate units
| Conversion | 1 kg/h equals |
|---|---|
| kilogram per hour to kilogram per second | 0.0002777777778 kg/s |
| kilogram per hour to tonne per hour | 0.001 t/h |
| kilogram per hour to tonne per day | 0.024 t/day |
| kilogram per hour to pound per hour | 2.204622622 lb/h |
| kilogram per hour to gram per second | 0.2777777778 g/s |
| kilogram per hour to kilogram per minute | 0.01666666667 kg/min |
| kilogram per hour to pound per second | 0.0006123951727 lb/s |
| kilogram per hour to pound per minute | 0.03674371036 lb/min |
Frequently asked questions
How many kg/s is 1 kg/h?
1 kg/h = 0.0002777777778 kg/s.
How many kilograms per second are in 1 kilogram per hour?
1 kg/h = 0.0002777777778 kg/s.
How do I convert kilograms per hour to kilograms per second?
Multiply the value in kg/h by 0.0002777777778, or divide it by 3600. For example, 5000 kg/h × 0.0002777777778 = 1.388888889 kg/s.
Is the kg/h to kg/s conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (derived units with special names).
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Kilograms per Hour to Kilograms per Second (kg/h to kg/s). Retrieved October 29, 2026, from https://scientificconverters.com/mass-flow-rate/kilograms-per-hour-to-kilograms-per-second/
IEEE
Scientific Converters, "Kilograms per Hour to Kilograms per Second (kg/h to kg/s)," scientificconverters.com. Accessed: Oct. 29, 2026. [Online]. Available: https://scientificconverters.com/mass-flow-rate/kilograms-per-hour-to-kilograms-per-second/