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Volumetric Flow Rate

gph (US)tomL/min

Convert US gallons per hour (gph (US)) to millilitres per minute (mL/min).

Factor1 gph (US) = 63.0902 mL/min

Converter

gph (US)

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

Result
63.0902mL/min

Rendered to 6 significant figures.

Formula

Formula
mL/min = gph (US) × 63.0902

Multiply any value in US gallons per hour by 63.0902 to obtain the value in millilitres per minute.

Worked example

Convert 1 gph (US) to mL/min.

  1. 01Start with 1 gph (US).
  2. 02Multiply by the conversion factor: 1 × 63.0902 = 63.0902 mL/min.
Result1 gph (US) = 63.0902 mL/min

Conversion table

gph (US)mL/min
163.09
2126.18
5315.45
10630.9
201261.8
503154.5
1006309
20012618
50031545
100063090

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from gph (US) to mL/min?
1 gph (US) equals 63.0902 mL/min. To convert, multiply the value in US gallons per hour by 63.0902.
How do I convert 1 gph (US) to mL/min?
1 gph (US) = 63.0902 mL/min. For any value, multiply by 63.0902.
How do I convert mL/min back to gph (US)?
Divide by the same factor — or equivalently, multiply by 0.01585032. So 1 mL/min = 0.0158503 gph (US).
When would I need to convert US gallon per hour to millilitre per minute?
Flow-rate conversions show up in pump curve interpretation, control valve sizing (Cv vs Kv), and aligning vendor specifications with process simulation outputs. gph (US) to mL/min is a frequently needed conversion for flow datasheet preparation.
Is the conversion exact?
Yes. Both gph (US) and mL/min are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).

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