This tool will calculate any parameter from the formula for leakage rate from a pressurised enclosed space Q = ΔP·V/t

# Flow Calculators

Online web tools for flow measurement conversions and calculations

## Leak Rate Converter

This conversion tool will convert the leakage rate for a gas filled or a vacuum sealed volume into different units

## Volumetric Flow Rate & Rectangular Duct Width x Height to Flow Velocity Calculator

Calculate the flow speed from a selected volumetric flow rate through a rectangular duct with a defined width and height, v = Q/(w·h)

## Flow Velocity & Rectangular Duct Width x Height to Volumetric Flow Rate Calculator

Calculate the volumetric flow rate from a selected flow speed through a rectangular duct with a defined width and height, Q = v·w·h

## Volumetric Flow Rate & Pipe Diameter to Flow Speed Calculator

Calculate the flow velocity from a selected volumetric flow through a pipe or duct of a certain diameter, v = 4·Q/(π·ø²)

## Flow Velocity & Pipe Diameter to Volumetric Flow Rate Calculator

Calculate the volumetric flow rate from a chosen flow velocity through a pipe or duct of a certain diameter, Q = ¼·v·π·ø²

## Volume Flow Rate Converter

This converter and conversion scale will convert the volumetric flow rate (V/t) of a gas or liquid to the equivalent value in different units and display a set of related conversions values.

## Mass Flow Rate Converter

This converter and conversion scale will convert the mass flow rate (m/t) of a gas or liquid to the equivalent value in a different measurement units and display a set of associated conversion values.

## Mass Flow & Density to Volume Flow Calculator

Use this calculator to convert mass to volumetric flow rate using substance density and display a unique conversion chart related to the entered values, Q = ṁ/ρ

## Volume Flow & Density to Mass Flow Calculator

Use this calculator to convert volumetric to mass flow rate using the substance density, ṁ = Q·ρ

## Volume Flow & Area to Flow Velocity Calculator

Calculate speed of flow from the volumetric flow rate and cross-sectional area of flow, v = Q/A

## Flow Velocity & Area to Flow Rate Calculator

Calculate the volumetric flow rate from a specified flow velocity through a defined cross-sectional area, Q = v·A

## Total Mass & Total Time to Flow Rate Calculator

Calculate the avg. mass flow rate from mass and elapsed time period, and show charts for mass and time period vs flow rate that reset for each calculation, ṁ = m/t

## Total Volume & Total Time to Flow Rate Calculator

Calculate the avg. volumetric flow rate from total volume flowed over a period of time and display conversion scales for volume and time vs flow rate, Q = V/t