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Volumetric Flow Rate

gpm (US)togal/day (US)

Convert US gallons per minute (gpm (US)) to US gallons per day (gal/day (US)).

Factor1 gpm (US) = 1440 gal/day (US)

Converter

gpm (US)

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

Result
1440gal/day (US)

Rendered to 6 significant figures.

Formula

Formula
gal/day (US) = gpm (US) × 1440

Multiply any value in US gallons per minute by 1440 to obtain the value in US gallons per day.

Worked example

Convert 1 gpm (US) to gal/day (US).

  1. 01Start with 1 gpm (US).
  2. 02Multiply by the conversion factor: 1 × 1440 = 1440 gal/day (US).
Result1 gpm (US) = 1440 gal/day (US)

Conversion table

gpm (US)gal/day (US)
11440
22880
57200
1014400
2028800
5072000
1001.4400e+5
2002.8800e+5
5007.2000e+5
10001.4400e+6

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from gpm (US) to gal/day (US)?
1 gpm (US) equals 1440 gal/day (US). To convert, multiply the value in US gallons per minute by 1440.
How do I convert 1 gpm (US) to gal/day (US)?
1 gpm (US) = 1440 gal/day (US). For any value, multiply by 1440.
How do I convert gal/day (US) back to gpm (US)?
Divide by the same factor — or equivalently, multiply by 0.0006944444. So 1 gal/day (US) = 0.000694444 gpm (US).
When would I need to convert US gallon per minute 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. gpm (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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