MEASUREMENT & METHODS

Kilograms per hour (kg/h): mass flow unit guide

Understand kilograms per hour (kg/h) for mass flow. Check base-unit equivalents, examples, comparison tables and source conventions.

What is being measured?

Mass flow is mass per time. Converting it into volumetric flow requires a density at the relevant conditions.

Mass flow cannot convert to volumetric flow without density. Pounds are avoirdupois.

Meaning of kg/h

Kilograms per hour uses the symbol kg/h in this library and measures mass flow rate. Under the stated reference convention, 1 kg/h = approximately 0.000277777777778 kg/s. This equivalence changes how a known value is written. It does not increase measurement accuracy or establish whether a measurement is appropriate to a real application.

Conversion method

Multiply the value by the source factor (0.00027777777777777777777777777777777777777777777777778), then divide by the target factor (1). The factor ratio expresses the same mass flow rate measurement in the other unit.

Worked example

For a known value of 10 kg/h, the reference conversion gives 0.00277777777778 kg/s. Converting that result back gives approximately 10 kg/h. This reverse check helps catch a reversed factor, but matching round-trip arithmetic alone does not independently verify a source definition.

Common reference values

Input (kg/h)Reference equivalent (kg/s)
10.000277777777778
50.00138888888889
100.00277777777778
250.00694444444444
500.0138888888889
1000.0277777777778

Compare one kg/h with other units

Target unitEquivalent of 1 kg/hDefinition guide
Kilograms per second (kg/s)0.000277777777778Read definition
Grams per second (g/s)0.277777777778Read definition
Grams per minute (g/min)16.6666666667Read definition
Pounds per second (lb/s)0.000612395172736Read definition
Pounds per hour (lb/h)2.20462262185Read definition

Precision and common mistakes

  • Keep the source and target quantity consistent. A matching symbol is not enough to establish a compatible definition.
  • Record the original measurement precision. Showing twelve significant digits in a table does not make a rounded input more precise.
  • Check symbol capitalization, prefixes and any regional convention in the source. Use the displayed unit definition rather than a similarly named unit.
  • Factors involving repeating fractions or π use finite numerical precision. Round the final answer to the precision justified by your input.

Use a working converter

Source and verification scope

Examples and tables are computed from the versioned unit definitions used by the linked converters. The source access dates appear below. Computandum is independent of the cited organizations; a citation does not mean that a publisher endorses this page or an actual project.

Sources

Read the calculation and sourcing methodology →