Imperial Gallons per Day to Cubic Inches per Millisecond
Convert Imperial Gallons per Day to Cubic Inches per Millisecond instantly. Free online flow rate unit converter with exact formula, conversion table and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Converter
Length Converter
Convert metric, imperial, and nautical distance units.
Context values
Some unit families need one extra value for a physically accurate result.
Use the converter to see the formula.
Results update instantly for Imperial Gallons per Day to Cubic Inches per Millisecond conversions.
Reserved above the conversion cards and below the converter.
Formula
in3/ms = imp gal/d × 3.21087e-6
imp gal/d = in3/ms ÷ 3.21087e-6
Conversion table
| 1 imp gal/d | 3.21087e-6 in3/ms |
| 5 imp gal/d | 1.60544e-5 in3/ms |
| 10 imp gal/d | 3.21087e-5 in3/ms |
| 20 imp gal/d | 6.42175e-5 in3/ms |
| 50 imp gal/d | 0.000160544 in3/ms |
| 100 imp gal/d | 0.000321087 in3/ms |
| 500 imp gal/d | 0.00160544 in3/ms |
| 1000 imp gal/d | 0.00321087 in3/ms |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
What is the source unit in this conversion?
The source unit is imperial gallons per day (imp gal/d). The Imperial Gallon (imp gal) is a unit of volume. The Day (d) is a unit of time.
What is the destination unit in this conversion?
The destination unit is cubic inches per millisecond (in3/ms). The Cubic Inch (in3) is a unit of volume. The Millisecond (ms) is a unit of time.
How do I convert imperial gallons per day to cubic inches per millisecond?
Multiply the imperial gallons per day value by 3.21087e-6 to get cubic inches per millisecond. For example, 10 imp gal/d × 3.21087e-6 = 3.21087e-5 in3/ms.
Is the imperial gallons per day to cubic inches per millisecond conversion exact?
It's exact under the SI-based volume and time definitions used here, since both units convert to cubic meters per second through fixed, non-rounded factors.
Where is this conversion commonly used?
Flow rate conversions like this are used in plumbing, HVAC, irrigation, chemical processing, fuel and water metering, and engineering flow calculations.
Can I convert cubic inches per millisecond back to imperial gallons per day?
Yes. Divide the cubic inches per millisecond value by 3.21087e-6 (or multiply by 311442) to get imperial gallons per day.
Reserved between the FAQ and the article so the page stays balanced.
About this conversion
This page converts imperial gallons per day (imp gal/d) into cubic inches per millisecond (in3/ms), two units of volumetric flow rate.
The Imperial Gallon (imp gal) is a unit of volume. The Day (d) is a unit of time.
The Cubic Inch (in3) is a unit of volume. The Millisecond (ms) is a unit of time.
The formula is in3/ms = imp gal/d × 3.21087e-6, based on the fixed relationship between these two flow rate units.
Flow rate is calculated as a volume unit divided by a time unit, so every combination of a volume unit and a time unit forms a valid, exact flow rate unit.