Flow Converter
Convert volumetric flow rates between metric, US customary, and Imperial units.
Converter guide
About Volumetric Flow Rate Converter
Volumetric flow rate measures how much volume passes a point per unit time. Common units include liters per second, cubic meters per hour, and gallons per minute. This converter helps compare flow readings when equipment documents use different unit systems.
How to use this converter
- 1Enter the volume flow rate and choose its source unit.
- 2Select the target unit, checking both the volume unit and time denominator.
- 3Read the converted figure and confirm that the source describes volumetric flow rather than mass flow or total capacity.
Conversion method and technical details
The tool converts the volume and time portions using fixed factors. A rate per minute can be changed to a rate per second using 60 seconds per minute; cubic meters and liters are related by 1 m³ = 1,000 L. The physical flow stays the same.
Worked real-world example
60 liters per minute equals 1 liter per second, because a minute contains 60 seconds.
Common scenarios and use cases
Compare pump, pipe, ventilation, water, or process flow specifications where the same throughput appears in different units.
For a dependable comparison, confirm both unit labels, keep the original measurement with the converted value, and use the precision required by the task. The converter changes the representation of a value; it does not measure the item or decide which standard your project requires.
Important details and limitations
Volumetric flow can vary with pressure and temperature for compressible fluids. This conversion does not account for pipe geometry, flow regime, density, or actual system performance. Verify the conditions attached to the source measurement.
Check the output unit as well as the number. If the result will be reused in another calculation, retain full precision where possible and round only at the end. For measurements governed by a technical specification, use the standard and tolerance required by that document.
Frequently asked questions
Is liters per minute a volume or a rate?
It is a rate: a volume divided by a time interval.
Can this convert gallons per minute to kg/s?
Not directly; mass flow also requires density and a compatible fluid condition.
Does unit conversion measure a pump?
No. It only changes the units of an entered flow value.
Why can the converted number look much larger or smaller?
Different units use different scales. A measurement can have a larger number in a smaller unit and still describe the same quantity. Check the source and target unit labels before comparing values.
How many decimal places should I keep?
Keep enough precision for the job and avoid rounding values between steps. Round the final displayed answer to match the specification, document, or measuring tool you are using.