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Quick Volumetric Flow Conversions
1 GPM = 3.785 L/min
US gallon per minute
1 m³/s = 15,850 GPM
Large industrial flow
1000 CFM = 472 L/s
HVAC airflow
1 bbl/day = 1.75 gal/hr
Oil industry standard
100 L/min = 26.4 GPM
Typical pump flow
1 ft³/s = 448 GPM
River flow measurement
Quick Mass Flow Conversions
1 kg/s = 7,937 lb/hr
Process industry
1 t/hr = 0.278 kg/s
Industrial production
100 lb/min = 2,722 kg/hr
Manufacturing rate
1000 ton/day = 10.4 kg/s
Mining operations
Flow Rate Visualization
Enter flow rate to see application comparison
Pipe Flow Calculator
Calculate flow velocity and pipe sizing
Enter flow rate and pipe dimensions to calculate velocity
Real-World Flow Rate Examples
🚿
Garden Hose
10-20 L/min
Home watering
🚰
Kitchen Faucet
6-10 L/min
Domestic use
🚿
Shower Head
10-20 L/min
Bathroom fixture
🔥
Fire Hydrant
1,000-4,000 L/min
Emergency services
🏊
Pool Pump
200-400 L/min
Pool circulation
🚗
Fuel Injector
1-10 mL/min
Automotive
🏭
Industrial Pump
500-5,000 L/min
Manufacturing
🏞️
Small River
10-1,000 m³/s
Natural waterway
🏥
IV Drip
50-200 mL/hr
Medical treatment
🚰
Water Main
1,000-10,000 L/min
Municipal supply
Reynolds Number Calculator
Enter velocity, diameter, and viscosity to calculate Reynolds number
HVAC Airflow Systems
🏠
Residential HVAC
400-1200 CFM
🏢
Office Building
2,000-10,000 CFM
🏭
Industrial HVAC
50,000+ CFM
💨
Exhaust Fan
100-500 CFM
🌡️
Heat Pump
800-1600 CFM
🍃
Ventilation System
200-1000 CFM
Flow Rate Units Reference
| Unit |
Type |
L/min Equivalent |
Common Use |
Application |
| L/min |
Volumetric |
1.0 |
Metric standard |
Pumps, domestic water |
| GPM (US) |
Volumetric |
3.785 |
US standard |
Plumbing, irrigation |
| CFM |
Volumetric |
28.317 |
Air flow |
HVAC, ventilation |
| m³/s |
Volumetric |
60,000 |
Large volumes |
Rivers, industrial |
| bbl/day |
Volumetric |
0.11 |
Oil industry |
Petroleum production |
| kg/s |
Mass |
Varies by fluid |
Process industry |
Chemical processing |
| t/hr |
Mass |
Varies by material |
Bulk materials |
Mining, manufacturing |