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Mass Flow Rate

st/hrtokg/s

Convert short tons per hour (st/hr) to kilograms per second (kg/s).

Factor1 st/hr = 0.2519958 kg/s

Converter

st/hr

Accepts numbers or expressions, e.g. 150 + 14.7

Result
2.51996kg/s

Rendered to 6 significant figures.

Formula

Formula
kg/s = st/hr × 0.2519958

Multiply any value in short tons per hour by 0.2519958 to obtain the value in kilograms per second.

Worked example

Convert 10 st/hr to kg/s.

  1. 01Start with 10 st/hr.
  2. 02Multiply by the conversion factor: 10 × 0.2519958 = 2.51996 kg/s.
Result10 st/hr = 2.51996 kg/s

Conversion table

st/hrkg/s
10.252
20.50399
51.26
102.52
205.0399
5012.6
10025.2
20050.399
500126
1000252

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from st/hr to kg/s?
1 st/hr equals 0.2519958 kg/s. To convert, multiply the value in short tons per hour by 0.2519958.
How do I convert 1 st/hr to kg/s?
1 st/hr = 0.251996 kg/s. For any value, multiply by 0.2519958.
How do I convert kg/s back to st/hr?
Divide by the same factor — or equivalently, multiply by 3.968321. So 1 kg/s = 3.96832 st/hr.
When would I need to convert short ton per hour to kilogram per second?
Mass flow conversions between st/hr and kg/s are common in material balances, process stream summaries, bulk solids handling, custody transfer, and equipment sizing where kg/hr, t/hr, lb/hr, and lb/s may all appear in different datasheets or vendor documents.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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