Litres per second to US gallons per minute Converter L/s → GPM

1 litre per second (L/s) = 15.85032314 US gallons per minute (GPM). Type a value below — the conversion happens instantly, entirely on your device.

From

1 L/s = 15.85032314 GPM

Precision

1 litres per second = 15.850323 US gallons per minute

1 × 15.8503 = 15.850323

1 L/s equals 15.8503 GPM, so multiplying by 15.8503 converts the value. The result describes the exact same quantity — only the measuring stick changes.

Rate this tool:

Anonymous — no account, no identifier

How to convert litres per second to US gallons per minute

US gallons per minute = litres per second × 15.85032314 — multiply the litre per second value by 15.8503.

Example: 1 L/s = 15.8503 GPM.

To convert the other way: litres per second = US gallons per minute ÷ 15.85032314

Litres per second to US gallons per minute multiplies by about 15.85: 1 L/s is about 15.85 GPM. Larger flows are quoted in L/s (metric) or GPM (US).

Litres per second to US gallons per minute conversion table

Litres per second (L/s)	US gallons per minute (GPM)
0.1	1.5850323
0.25	3.9625808
0.5	7.9251616
1	15.850323
2	31.700646
3	47.550969
4	63.401293
5	79.251616
6	95.101939
7	110.95226
8	126.80259
9	142.65291
10	158.50323
15	237.75485
20	317.00646
25	396.25808
30	475.50969
40	634.01293
50	792.51616
75	1188.7742
100	1585.0323
250	3962.5808
500	7925.1616
1000	15,850.323

About the units

What is a litre per second?

One litre per second is 0.001 m³/s. A common unit for pumps and plumbing flows.

What is a us gallon per minute?

US gallons per minute — the standard US pump and plumbing rate. One GPM is about 3.785 L/min.

Frequently asked questions

How many US gallons per minute are in 1 litre per second?

1 litre per second (L/s) = 15.85032314 US gallons per minute (GPM).

What is the formula to convert litres per second to US gallons per minute?

US gallons per minute = litres per second × 15.85032314 — multiply the litre per second value by 15.8503.

How do I convert L/s to GPM without a calculator?

Multiply by 15.9 for a close estimate. Exact factor: 1 L/s = 15.85032314 GPM.

Is this L/s-to-GPM converter accurate and private?

Yes. It uses the exact internationally defined conversion factors and computes results locally in your browser — your input is never sent to a server, and the page keeps working offline.