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Convert Gallons per hour to Liters per second

Instantly convert Gallons per hour (GPH) to Liters per second (L/s) with our free online calculator.

Formula: GPH to L/smultiply by 0.00105151

Reference Table

Gallons per hour (GPH)Liters per second (L/s)
10.00105151
50.00525755
100.0105151
250.0262878
500.0525755
1000.105151

How to Convert Gallons per hour to Liters per second

Formula

To convert Gallons per hour (GPH) to Liters per second (L/s): multiply by 0.00105151

Step-by-Step

  1. Start with your value in Gallons per hour (GPH).
  2. Multiply by 0.00105151 to perform the conversion.
  3. The result is your value expressed in Liters per second (L/s).

Conversion Factor

1 GPH = 0.00105151 L/s

Reverse Factor

1 L/s = 951.013 GPH

Worked Example

Convert 25 Gallons per hour to Liters per second: 25 GPH = 0.0262878 L/s

About Gallon per hour (GPH)

A US flow-rate unit for slow/metered flows. Used on aquarium pumps, water-feature recirculators, irrigation drip emitters, oil burners, fuel-dispensing meters, and some industrial dosing equipment. Boat fuel-flow meters also report fuel consumption in GPH, a useful figure for cruising range calculations.

About Liter per second (L/s)

A metric flow-rate unit equal to 0.001 m³/s. L/s is the typical unit for plumbing fixtures in metric-using countries, fire-pump capacities, and medium-flow industrial processes. A typical kitchen faucet is 0.1–0.15 L/s; a fire hydrant can deliver 30–60 L/s. Converting L/s to GPM (×15.85) is routine for international pump and plumbing equipment.

Quick Facts

  • 1 Gallon per hour equals 0.00105151 Liters per second
  • 1 Liter per second equals 951.013 Gallons per hour
  • Gallon per hour is a unit of volumetric flow rate
  • Liter per second is a unit of volumetric flow rate
  • This conversion is commonly used in plumbing, HVAC systems, and chemical process engineering
  • The Gallon per hour belongs to the imperial system
  • The Liter per second belongs to the metric system

Common Gallon per hour to Liter per second Conversions

Gallons per hour (GPH)Liters per second (L/s)
0.010.0000105151
0.10.000105151
0.250.000262878
0.50.000525755
10.00105151
20.00210302
30.00315453
50.00525755
100.0105151
150.0157727
200.0210302
250.0262878
500.0525755
750.0788633
1000.105151
2500.262877
5000.525755
10001.05151
50005.25755
1000010.5151

Understanding Gallons per hour

The Gallon per hour (symbol: GPH) is a unit of volumetric flow rate. A US flow-rate unit for slow/metered flows. Used on aquarium pumps, water-feature recirculators, irrigation drip emitters, oil burners, fuel-dispensing meters, and some industrial dosing equipment. Boat fuel-flow meters also report fuel consumption in GPH, a useful figure for cruising range calculations.

It belongs to the imperial measurement system.

Gallons per hour are commonly used in plumbing, HVAC systems, and chemical process engineering.

Understanding Liters per second

The Liter per second (symbol: L/s) is a unit of volumetric flow rate. A metric flow-rate unit equal to 0.001 m³/s. L/s is the typical unit for plumbing fixtures in metric-using countries, fire-pump capacities, and medium-flow industrial processes. A typical kitchen faucet is 0.1–0.15 L/s; a fire hydrant can deliver 30–60 L/s. Converting L/s to GPM (×15.85) is routine for international pump and plumbing equipment.

It belongs to the metric measurement system.

Liters per second are commonly used in plumbing, HVAC systems, and chemical process engineering.

Why Convert Gallons per hour to Liters per second?

Converting between Gallons per hour and Liters per second is a frequent requirement for engineers, scientists, and students working with volumetric flow rate values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate volumetric flow rate conversion is essential.

Frequently Asked Questions

How do I convert Gallons per hour to Liters per second?

A US flow-rate unit for slow/metered flows. To convert Gallons per hour to Liters per second, multiply by 0.00105151. For example, 25 GPH equals 0.0262878 L/s.

How many Liters per second are in 1 Gallon per hour?

There are 0.00105151 Liters per second in 1 Gallon per hour.

How many Gallons per hour are in 1 Liter per second?

There are 951.013 Gallons per hour in 1 Liter per second.

What is the formula for Gallon per hour to Liter per second conversion?

The formula is: multiply by 0.00105151. This means 1 GPH = 0.00105151 L/s.

Is a Gallon per hour bigger than a Liter per second?

Yes. One Gallon per hour is larger than one Liter per second because 1 GPH equals 0.00105151 L/s, which is less than 1.

When do you need to convert between Gallons per hour and Liters per second?

A metric flow-rate unit equal to 0. Gallon per hour and Liter per second are both volumetric flow units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.

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