Imperial Gallons per Second to US Gallons per Second
Convert Imperial Gallons per Second to US Gallons per Second 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 Second to US Gallons per Second conversions.
Reserved above the conversion cards and below the converter.
Formula
gal/s = imp gal/s × 1.20095
imp gal/s = gal/s ÷ 1.20095
Conversion table
| 1 imp gal/s | 1.20095 gal/s |
| 5 imp gal/s | 6.00475 gal/s |
| 10 imp gal/s | 12.0095 gal/s |
| 20 imp gal/s | 24.019 gal/s |
| 50 imp gal/s | 60.0475 gal/s |
| 100 imp gal/s | 120.095 gal/s |
| 500 imp gal/s | 600.475 gal/s |
| 1000 imp gal/s | 1200.95 gal/s |
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 second (imp gal/s). The Imperial Gallon (imp gal) is a unit of volume. The Second (s) is a unit of time.
What is the destination unit in this conversion?
The destination unit is us gallons per second (gal/s). The US Gallon (gal) is a unit of volume. The Second (s) is a unit of time.
How do I convert imperial gallons per second to us gallons per second?
Multiply the imperial gallons per second value by 1.20095 to get us gallons per second. For example, 10 imp gal/s × 1.20095 = 12.0095 gal/s.
Is the imperial gallons per second to us gallons per second 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 us gallons per second back to imperial gallons per second?
Yes. Divide the us gallons per second value by 1.20095 (or multiply by 0.832674) to get imperial gallons per second.
Reserved between the FAQ and the article so the page stays balanced.
About this conversion
This page converts imperial gallons per second (imp gal/s) into us gallons per second (gal/s), two units of volumetric flow rate.
The Imperial Gallon (imp gal) is a unit of volume. The Second (s) is a unit of time.
The US Gallon (gal) is a unit of volume. The Second (s) is a unit of time.
The formula is gal/s = imp gal/s × 1.20095, 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.