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Volumetric Flow Rate

gph (US)togal/day (US)

Convert US gallons per hour (gph (US)) to US gallons per day (gal/day (US)).

Factor1 gph (US) = 24 gal/day (US)

Converter

gph (US)

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

Result
240gal/day (US)

Rendered to 6 significant figures.

Formula

Formula
gal/day (US) = gph (US) × 24

Multiply any value in US gallons per hour by 24 to obtain the value in US gallons per day.

Worked example

Convert 10 gph (US) to gal/day (US).

  1. 01Start with 10 gph (US).
  2. 02Multiply by the conversion factor: 10 × 24 = 240 gal/day (US).
Result10 gph (US) = 240 gal/day (US)

Conversion table

gph (US)gal/day (US)
124
248
5120
10240
20480
501200
1002400
2004800
50012000
100024000

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from gph (US) to gal/day (US)?
1 gph (US) equals 24 gal/day (US). To convert, multiply the value in US gallons per hour by 24.
How do I convert 1 gph (US) to gal/day (US)?
1 gph (US) = 24 gal/day (US). For any value, multiply by 24.
How do I convert gal/day (US) back to gph (US)?
Divide by the same factor — or equivalently, multiply by 0.04166667. So 1 gal/day (US) = 0.0416667 gph (US).
When would I need to convert US gallon per hour to US gallon per day?
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 gal/day (US) is a frequently needed conversion for flow datasheet preparation.
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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