1 gallon (US) per hour [gal/h] = 0.000001 cubic meter per second [m3/s]
Example: 1 gallon (US) per hour [gal/h] equals 0.000001 cubic meter per second [m3/s].
Examples
1 gallon (US) per hour [gal/h] = 0.000001 cubic meter per second [m3/s]
2 gallon (US) per hour [gal/h] = 0.000002 cubic meter per second [m3/s]
5 gallon (US) per hour [gal/h] = 0.000005 cubic meter per second [m3/s]
10 gallon (US) per hour [gal/h] = 0.000011 cubic meter per second [m3/s]
20 gallon (US) per hour [gal/h] = 0.000021 cubic meter per second [m3/s]
25 gallon (US) per hour [gal/h] = 0.000026 cubic meter per second [m3/s]
Practical Uses for gallon us per hour to cubic meter per second
quick homework checksshopping and product comparisonstravel planningprofessional estimatesDIY and household measurementsgeneral reference
Sources and Accuracy
Flow rate conversions use cubic meter per second as the reference unit and include common pump, plumbing, HVAC, and process-flow units.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-05-21.
About These Units
gallon (US) per hour [gal/h]
Definition
The gallon (US) per hour (gal/h) is a flow rate unit used to express measurements in this converter.
History
This unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current use
Use gallon (US) per hour when comparing flow rate values, checking specifications, converting between systems, or preparing quick estimates.
cubic meter per second [m3/s]
Definition
The cubic meter per second (m3/s) is a flow rate unit used to express measurements in this converter.
History
This unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current use
Use cubic meter per second when comparing flow rate values, checking specifications, converting between systems, or preparing quick estimates.
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How to Convert
Enter the value in the “From value” field.
Confirm the source unit is gallon (US) per hour [gal/h].
Confirm the target unit is cubic meter per second [m3/s].
How do I convert gallon (US) per hour to cubic meter per second?
Use this formula: 1 gallon (US) per hour [gal/h] = 0.000001 cubic meter per second [m3/s] Enter your value in the calculator and the result updates instantly.
How many cubic meter per second are in 1 gallon (US) per hour?
1 gallon (US) per hour [gal/h] equals 0.000001 cubic meter per second [m3/s].
Can I reverse this conversion?
Yes. Use the swap button in the calculator or open the related reverse conversion link when it is listed on this page.