Gallon (UK) per Minute to Liter per Minute (imp gal/min to LPM)
Convert imp gal/min to LPM — Flow Rate converter
One gallon (UK) per minute equals 4.546091 LPM, so to convert gallons (UK) per minute to liters per minute you multiply the value by 4.546091. A gallon (UK) per minute is larger than a liter per minute — going the other way, 1 LPM = 0.21996918 imp gal/min. For example, 10 imp gal/min = 45.460914 LPM and 50 imp gal/min = 227.30457 LPM.
1 imp gal/min = 4.546091 LPM
Gallon (UK) per Minute to Liter per Minute formula
1 Gallon (UK) per Minute = 4.546091 LPM
Worked examples
- 25 imp gal/min = 113.652285 LPM
- 100 imp gal/min = 454.60914 LPM
Gallon (UK) per Minute to Liter per Minute conversion table
| Gallon (UK) per Minute (imp gal/min) | Liter per Minute (LPM) |
|---|---|
| 1 | 4.546091 |
| 2 | 9.092183 |
| 3 | 13.638274 |
| 5 | 22.730457 |
| 8 | 36.368731 |
| 10 | 45.460914 |
| 12 | 54.553097 |
| 15 | 68.191371 |
| 20 | 90.921828 |
| 25 | 113.652285 |
| 50 | 227.30457 |
| 100 | 454.60914 |
| 250 | 1136.52 |
| 500 | 2273.05 |
| 1000 | 4546.09 |
Which gallon, and which trade
The single most expensive mistake in flow conversion is the gallon. A US liquid gallon is 3.785411784 litres; an imperial gallon is 4.54609 litres. US GPM and imperial GPM differ by about 20%, and pump datasheets frequently do not say which one they mean. Check the manufacturer's country of origin before trusting a GPM figure.
Different trades default to different units for the same physical quantity: HVAC and compressed air work in CFM, plumbing and pumps in GPM or LPM, and process and water engineering in m³/h or L/s. A specification that mixes them is usually quoting different equipment, not different flows. On this page, 1 imp gal/min = 4.546091 LPM.
Frequently asked questions
How many liters per minute are in one gallon (UK) per minute?
One gallon (UK) per minute equals 4.546091 liters per minute (LPM).
How many gallons (UK) per minute are in one liter per minute?
One liter per minute equals 0.21996918 gallons (UK) per minute (imp gal/min).
How do you convert gallons (UK) per minute to liters per minute?
1 Gallon (UK) per Minute = 4.546091 LPM. Use the calculator above for any value.
What is 5 imp gal/min in LPM?
5 imp gal/min = 22.730457 LPM.
What is 100 imp gal/min in LPM?
100 imp gal/min = 454.60914 LPM.
What is 10 imp gal/min in LPM?
10 imp gal/min = 45.460914 LPM.
What is 20 imp gal/min in LPM?
20 imp gal/min = 90.921828 LPM.
What is 50 imp gal/min in LPM?
50 imp gal/min = 227.30457 LPM.
What is 500 imp gal/min in LPM?
500 imp gal/min = 2273.05 LPM.
Is a gallon (UK) per minute bigger than a liter per minute?
Yes. A gallon (UK) per minute is larger — one gallon (UK) per minute equals 4.546091 liters per minute (LPM).