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Convert Gallons per hour to Milliliters per second

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

Formula: GPH to mL/smultiply by 1.05151

Reference Table

Gallons per hour (GPH)Milliliters per second (mL/s)
11.05151
55.25755
1010.5151
2526.2878
5052.5755
100105.151

How to Convert Gallons per hour to Milliliters per second

Formula

To convert Gallons per hour (GPH) to Milliliters per second (mL/s): multiply by 1.05151

Step-by-Step

  1. Start with your value in Gallons per hour (GPH).
  2. Multiply by 1.05151 to perform the conversion.
  3. The result is your value expressed in Milliliters per second (mL/s).

Conversion Factor

1 GPH = 1.05151 mL/s

Reverse Factor

1 mL/s = 0.951013 GPH

Worked Example

Convert 25 Gallons per hour to Milliliters per second: 25 GPH = 26.2878 mL/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 Milliliter per second (mL/s)

A small-scale flow-rate unit (1 mL/s = 10⁻⁶ m³/s) used in laboratory chemistry, HPLC columns, medical infusions, and micro-scale fluidic research. Typical HPLC flow rates are 0.5–2 mL/s. Peristaltic dosing pumps, analytical chemistry equipment, and lab-on-a-chip devices commonly specify flow in mL/s or mL/min.

Quick Facts

  • 1 Gallon per hour equals 1.05151 Milliliters per second
  • 1 Milliliter per second equals 0.951013 Gallons per hour
  • Gallon per hour is a unit of volumetric flow rate
  • Milliliter 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 Milliliter per second belongs to the metric system

Common Gallon per hour to Milliliter per second Conversions

Gallons per hour (GPH)Milliliters per second (mL/s)
0.010.0105151
0.10.105151
0.250.262878
0.50.525755
11.05151
22.10302
33.15453
55.25755
1010.5151
1515.7727
2021.0302
2526.2878
5052.5755
7578.8633
100105.151
250262.878
500525.755
10001051.51
50005257.55
1000010515.1

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 Milliliters per second

The Milliliter per second (symbol: mL/s) is a unit of volumetric flow rate. A small-scale flow-rate unit (1 mL/s = 10⁻⁶ m³/s) used in laboratory chemistry, HPLC columns, medical infusions, and micro-scale fluidic research. Typical HPLC flow rates are 0.5–2 mL/s. Peristaltic dosing pumps, analytical chemistry equipment, and lab-on-a-chip devices commonly specify flow in mL/s or mL/min.

It belongs to the metric measurement system.

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

Why Convert Gallons per hour to Milliliters per second?

Converting between Gallons per hour and Milliliters 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 Milliliters per second?

A US flow-rate unit for slow/metered flows. To convert Gallons per hour to Milliliters per second, multiply by 1.05151. For example, 25 GPH equals 26.2878 mL/s.

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

There are 1.05151 Milliliters per second in 1 Gallon per hour.

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

There are 0.951013 Gallons per hour in 1 Milliliter per second.

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

The formula is: multiply by 1.05151. This means 1 GPH = 1.05151 mL/s.

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

No. One Gallon per hour is smaller than one Milliliter per second because 1 GPH equals 1.05151 mL/s, which is greater than 1.

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

A small-scale flow-rate unit (1 mL/s = 10⁻⁶ m³/s) used in laboratory chemistry, HPLC columns, medical infusions, and micro-scale fluidic research. Gallon per hour and Milliliter 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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