Volumetric Flow Rate & Discharge Converter
Convert between cubic meters per second (m³/s), liters per minute (L/min), liters per second (L/s), US Gallons per Minute (GPM), Cubic Feet per Minute (CFM), cfs, and barrels per day (bpd).
8 Units Available
| Unit Name | Symbol | Converted Value | Copy |
|---|---|---|---|
| Cubic Meter per second | m³/s | 100 | |
| Liters per minute | L/min | 6,000,000 | |
| Liters per second | L/s | 100,000 | |
| US Gallons per minute | GPM (US) | 1,585,032.3141 | |
| Cubic feet per minute (CFM) | CFM | 211,888.0003 | |
| Cubic feet per second (cusec) | cfs | 3,531.4667 | |
| Barrels per day (petroleum) | bpd | 54,343,965.0565 | |
| Million gallons per day | MGD | 2,282.4465 |
What is Volumetric Flow Rate & Discharge?
Volumetric flow rate ($Q = V/t = A \cdot v$) measures the volume of fluid passing through a given cross-sectional area per unit of time, with SI dimensions $[L]^3[T]^{-1}$ and base units $\text{m}^3/\text{s}$.
HVAC systems universally size ventilation in CFM (cubic feet per minute), industrial hydronic piping specifies pumps in US GPM, and civil hydrology quantifies river discharge in cubic meters per second (cumecs) or cubic feet per second (cusecs).
Formula & Step-by-Step Calculation
Conversion factors between international volumetric flow units.
Worked Step-by-Step Examples
Convert 1,200 CFM of HVAC fan airflow to liters per second and cubic meters per hour.
Common Real-World & Academic Use Cases
- ✓ HVAC ventilation air exchange rate sizing and duct design in CFM
- ✓ Hydraulic pump sizing, fire sprinkler discharge, and pipeline GPM design
- ✓ Civil river discharge, spillway flood management, and dam engineering
- ✓ Petroleum wellhead extraction and pipeline metering in barrels per day (bpd)
How to Use the Volumetric Flow Rate & Discharge Converter
Input Flow Rate
Enter numeric discharge rate.
Select Source
Choose m³/s, L/min, GPM, CFM, or bpd.
Inspect Conversions
View instant multi-unit values and 1-click copy.
Frequently Asked Questions
Q: What is the difference between CFM and GPM?
CFM (cubic feet per minute) is typically used for gases and ventilation airflow, whereas GPM (gallons per minute) is standard for liquids and hydronic pumping.