Fluids Converters · Free Online Tool

Volumetric Flow Rate Converter

Convert between 22 volumetric flow rate units instantly. Enter a value, pick your units and get the result with the formula, a full conversion table and worked examples.

mL/minL/hL/minL/sm³/dML/d+16 more

Value

From

100 GPM = 22.7125 m³/h

1 GPM = 0.227125 m³/h | Formula: m³/h = GPM × 0.227125

Significant digits

Popular:

100 GPM in all volumetric flow rate units

Updates live as you type. Click a row to set it as the target unit.

Unit	Symbol	Value
Millilitre per minute	mL/min	378,541
Litre per hour	L/h	22,712.5
Litre per minute	L/min	378.541
Litre per second	L/s	6.30902
Cubic metre per day	m³/d	545.099
Megalitre per day	ML/d	0.545099
Cubic metre per hour	m³/h	22.7125
Cubic metre per minute	m³/min	0.378541
Cubic metre per second	m³/s	0.00630902
Cubic foot per hour	ft³/h	802.083
Cubic foot per minute	CFM	13.3681
Cubic foot per second	ft³/s	0.222801
Gallon (US) per day	gal/d	144,000
Gallon (US) per hour	gal/h	6,000
Gallon (US) per minute	GPM	100
Gallon (US) per second	gal/s	1.66667
Million gallons (US) per day	MGD	0.144
Gallon (UK) per hour	gal (UK)/h	4,996.05
Gallon (UK) per minute	gal (UK)/min	83.2674
Barrel (oil) per day	bbl/d	3,428.57
Barrel (oil) per hour	bbl/h	142.857
Acre foot per day	ac ft/d	0.441919

How to Convert Volumetric Flow Rate Units

Volumetric flow rate is the volume of fluid passing a point per unit time (Q = A × v). The SI unit is cubic metre per second (m³/s); flow meters are typically ranged in m³/h, L/min, US GPM or CFM.

Every unit on this page is stored as a fixed factor relative to one reference unit, the cubic metre per second (m³/s). Converting is a two step multiply and divide:

Multiply your value by the factor of the source unit to get the value in m³/s.
Divide that result by the factor of the target unit.

Value in B = Value in A × (Factor of A ÷ Factor of B)

Worked example: convert 100 gallon (us) per minute to cubic metre per hour. Using m³/h = GPM × 0.227125: 100 GPM × 0.227125 = 22.7125 m³/h.

Gallon (US) per minute to Cubic metre per hour conversion table

Gallon (US) per minute (GPM)	Cubic metre per hour (m³/h)
1 GPM	0.227125 m³/h
2 GPM	0.454249 m³/h
3 GPM	0.681374 m³/h
4 GPM	0.908499 m³/h
5 GPM	1.13562 m³/h
6 GPM	1.36275 m³/h
7 GPM	1.58987 m³/h
8 GPM	1.817 m³/h
9 GPM	2.04412 m³/h
10 GPM	2.27125 m³/h
15 GPM	3.40687 m³/h
20 GPM	4.54249 m³/h
25 GPM	5.67812 m³/h
30 GPM	6.81374 m³/h
40 GPM	9.08499 m³/h
50 GPM	11.3562 m³/h
75 GPM	17.0344 m³/h
100 GPM	22.7125 m³/h
250 GPM	56.7812 m³/h
500 GPM	113.562 m³/h
1,000 GPM	227.125 m³/h

Volumetric Flow Rate Units and Conversion Factors

Value of one unit expressed in m³/s.

Unit	Symbol	In m³/s
Millilitre per minute	mL/min	1.666666667 × 10⁻⁸
Litre per hour	L/h	2.777777778 × 10⁻⁷
Litre per minute	L/min	0.00001666666667
Litre per second	L/s	0.001
Cubic metre per day	m³/d	0.00001157407407
Megalitre per day	ML/d	0.01157407407
Cubic metre per hour	m³/h	0.0002777777778
Cubic metre per minute	m³/min	0.01666666667
Cubic metre per second	m³/s	1
Cubic foot per hour	ft³/h	0.00000786579072
Cubic foot per minute	CFM	0.0004719474432
Cubic foot per second	ft³/s	0.02831684659
Gallon (US) per day	gal/d	4.381263639 × 10⁻⁸
Gallon (US) per hour	gal/h	0.000001051503273
Gallon (US) per minute	GPM	0.0000630901964
Gallon (US) per second	gal/s	0.003785411784
Million gallons (US) per day	MGD	0.04381263639
Gallon (UK) per hour	gal (UK)/h	0.000001262802778
Gallon (UK) per minute	gal (UK)/min	0.00007576816667
Barrel (oil) per day	bbl/d	0.000001840130728
Barrel (oil) per hour	bbl/h	0.00004416313748
Acre foot per day	ac ft/d	0.01427641016

Frequently Asked Questions

What is the SI unit of volumetric flow rate?

The SI unit of volumetric flow rate is the cubic metre per second (m³/s). Volumetric flow rate is the volume of fluid passing a point per unit time (Q = A × v).

How do I convert GPM to m³/h?

To convert gallon (us) per minute (GPM) to cubic metre per hour (m³/h), multiply the value in GPM by 0.227125. For example, 1 GPM = 0.227125 m³/h.

How do I convert m³/h to GPM?

To convert cubic metre per hour (m³/h) to gallon (us) per minute (GPM), multiply the value in m³/h by 4.40287. For example, 1 m³/h = 4.40287 GPM.

How do I convert L/min to GPM?

To convert litre per minute (L/min) to gallon (us) per minute (GPM), multiply the value in L/min by 0.264172. For example, 1 L/min = 0.264172 GPM.

Can I see a value in every volumetric flow rate unit at once?

Yes. Enter a value and choose the source unit; the "all units" table below the converter instantly lists the equivalent in all 22 supported units. Click any row to make it the target unit.

Learn the theory behind it

Flow meter reading stability factors

A practical, field focused guide on instrumentationblog.in that explains where these units come from and how engineers use them on real plants.

Read Full Article

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