Stream Flow Calculator
Calculate stream discharge from average velocity, channel width, and depth. Includes Froude number, hydraulic radius, and flow regime classification.
Inputs
Results
Discharge
18 m³/s
Discharge
18,000 L/s
Flow Regime
Subcritical
How to Use This Calculator
- Enter Average Velocity, Channel Width, and Average Depth.
- Review Discharge (m³/s), Discharge (L/s), and Flow Regime.
- Use Discharge (Imperial) (cfs) and Daily Volume (ML/day) to inform your decision.
- Use the chart to visualize the results and explore different scenarios by adjusting inputs.
Formula
Q = V × W × D; Fr = V / √(gD)Related Calculators
Rational Method Runoff
Calculate peak stormwater discharge using the Rational Method (Q = CIA/360). Estimate runoff from rainfall intensity, runoff coefficient, and catchment area.
Watershed Area Calculator
Calculate drainage area and morphometric parameters of a watershed from perimeter, shape factor, and longest flow path.
Dam Spillway Design
Calculate spillway discharge capacity using the weir equation. Determine flow rate, approach velocity, and energy dissipation for dam spillway design.
Flood Frequency Analysis
Estimate the design flood discharge for a given return period using a simplified log-Pearson Type III frequency analysis.