Flow Rate Calculator — Pipes, Channels & Orifices

Calculate volumetric flow rate for pipes, open channels, and orifices. Manning's equation, continuity equation, and Bernoulli included.

Chlorine Dosing

Advertisement

Formula Definitions

The Flow Rate Calculator — Pipes, Channels & Orifices works by applying a well-defined formula to the values you enter. Understanding the formula behind the calculation helps you interpret the result and check that your inputs are correct. Below we break down the key components that drive the Flow Rate Calculator.

The core formula used by this calculator is:

Result = f(physical quantities, constants, conditions)

Each variable in the formula has a specific meaning:

  • physical quantities — Measured values with units entered into the Flow Rate Calculator.
  • constants — Physical or chemical constants (e.g. CODATA values, gas constant, Avogadro's number).
  • conditions — Temperature, pressure, concentration, or environmental state of the system.
  • Result — Computed physical or chemical quantity with associated units.

Note: Compare results with standard reference values or published experimental data.

How to Use This Calculator

  1. Enter the required values. Enter the required values into the Flow Rate Calculator — Pipes, Channels & Orifices input fields.
  2. Adjust settings. Adjust any settings, select applicable options, or choose units as needed.
  3. Calculate the result. Press Calculate to compute the result using the underlying formula.
  4. Interpret the output. Review and interpret your result using the provided context, reference ranges, or explanatory notes.

Glossary and Definitions

Physical quantity
A measurable property of a physical system, expressed as a numeric value with units.
Constant
A fixed, well-defined value (e.g. a CODATA constant) used across scientific calculations.
Significant figures
The digits in a measurement that carry meaning, reflecting the precision of the instrument.
Reference value
A published standard or experimental value used to validate a calculated result.
Flow rate calculator
A key concept referenced by the Flow Rate Calculator: Calculate volumetric flow rate for pipes, open channels, and orifices. Manning's equation, continuity equation, and Bernoulli included.
Pipe flow calculator
A key concept referenced by the Flow Rate Calculator: Calculate volumetric flow rate for pipes, open channels, and orifices. Manning's equation, continuity equation, and Bernoulli included.
Manning equation
A key concept referenced by the Flow Rate Calculator: Calculate volumetric flow rate for pipes, open channels, and orifices. Manning's equation, continuity equation, and Bernoulli included.
Volumetric flow
A key concept referenced by the Flow Rate Calculator: Calculate volumetric flow rate for pipes, open channels, and orifices. Manning's equation, continuity equation, and Bernoulli included.

Related Calculators

Reynolds Number

Fluids

Darcy-Weisbach

Petroleum / Oilfield

Frequently Asked Questions