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Both calculators run independently — change the inputs on either side to compare results.
Fluid Mechanics
Weir Flow Discharge Calculator
Estimate volumetric flow rate (discharge) over a weir structure given its width, head height, and discharge coefficient. Used by hydraulic engineers designing spillways, irrigation channels, and stormwater outlets.
Fill in the required fields to see your result.
Fluid Mechanics
Venturi Meter Flow Calculator
Determine the volumetric flow rate of a fluid passing through a venturi meter. Use this when designing pipelines or calibrating flow measurement devices in industrial systems.
Fill in the required fields to see your result.
Key differences
| Weir Flow Discharge Calculator | Venturi Meter Flow Calculator | |
|---|---|---|
| Category | Fluid Mechanics | Fluid Mechanics |
| Inputs required | 3 | 4 |
| Result | Flow Rate (m³/s) | Flow Rate (m³/s) |
| What it does | Estimate volumetric flow rate (discharge) over a weir structure given its width, head height, and discharge coefficient. Used by hydraulic engineers designing spillways, irrigation channels, and stormwater outlets. | Determine the volumetric flow rate of a fluid passing through a venturi meter. Use this when designing pipelines or calibrating flow measurement devices in industrial systems. |