Best Airflow Calculator Apps

3.0(4 ratings)

Free

This utility app simplifies air velocity and flow calculations using Dwyer Pitot Tubes. It supports both US and Metric units for quick spot checks.

Air Flow Calculator by Cornerstone Ltd

Strong Contender

0.0(0 ratings)

Free

Air Flow Conversion Calculator by Nitrio

Air Velocity & Airflow Volume

Worth Considering

HVAC & Sheet Metal Calculator

3.5(11 ratings)

$2.99

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Easily calculate air velocity and airflow volume for various duct types. Input dimensions and units, and get instant results for HVAC and ventilation applications.

More Airflow Calculator apps to explore

Construction Math & Trade Pro

Sheet metal calculations (radius, offset, wrapper length)Trigonometric functions (sine, cosine, tangent, arc)HVAC specific calculations (fan law, CFM, velocity)

This app provides advanced calculations for HVAC and sheet metal professionals. It simplifies complex dimensional math, geometry, and trigonometry with specialized functions for ducting, airflow, and construction layouts. Offers a free trial before committing to a subscription.

free with in-app purchases

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Duct Calculator: HVAC Sizing

HVAC duct sizing & airflow

DuctWise HVAC Duct Calculator

(0)

Ductulator, sizing & static

Easy air volume calculator

Calculate air velocity (FPM)Calculate air volume rate (CFM)Log measurements by location

Easily calculate and log air volume measurements for efficient airflow in cotton gins and other air-based systems. Input pressure and pipe dimensions to get air velocity and volume rates, then log and share your data.

📊 Productivity

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Cotton Gin Air Calculator

by MARTIN Mehner

Air velocity calculationAir volume calculationPitot tube velocity pressure input

This utility app calculates air velocity and volume in ducts using pitot tube readings. It's designed for industrial applications, assuming standard air conditions. Measurements are taken in inches of water column and duct diameter.

Duct sizing made simple

Ductulator - Duct Calculator

(0)

HVAC Airflow Sizing & Design

Duct sizing for round, rectangular, and flexible ductsFittings pressure drop calculationPsychrometric analysis with interactive chart

This app provides professional HVAC duct sizing and psychrometric calculations in a single tool. It offers detailed calculations for various duct types and materials, along with comprehensive humid air property analysis. Designed for HVAC professionals, it replaces traditional ductulators with accurate digital functionality.

free with in-app purchases

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HVAC Field Tools: Calculator

Superheat, PT & Duct Sizing

This tool assists HVAC professionals and students with quick and precise calculations for duct sizing, airflow velocity, and airflow rate. It works offline and features a user-friendly interface for efficient project work.

Duct size calculationAirflow velocity (FPM) calculationAirflow rate (CFM) calculation

Quickly estimate performance changes in HVAC systems based on variations in airflow and RPM. Uses standard fan law equations for calculations. Input current values and see results update instantly.

Estimate airflow and RPM impactUses standard fan law equationsAutomatic calculation updates

Calculate CFM, ACH & Filters

Pressure Drop & Friction Rate

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Air Duct Size Calculator

Duct sizing by velocity or frictionExisting duct analysisPressure-drop calculations

This tool helps HVAC professionals quickly size ducts, check airflow, and perform pressure calculations. It offers detailed engineering values and supports both imperial and metric units for practical on-site work.

(1)

Elkhart Hard Facts Calculator

by Elkhart Brass

Smooth Bore Discharges & Flow/Pressure calculatorNozzle Reaction calculators (Smooth Bore & Fog)Pump Discharge Pressure calculators

This utility app provides essential calculators for accurate flow testing, covering various nozzle types, pump discharge pressures, and fire flow formulas. It also includes direct links to helpful instructional videos.

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SCADACore AGA Flow Calculator

by SCADACore Inc.

Orifice Meter gas flow calculationAGA 8 compressibility calculationsAGA 3 gas flow calculations

Calculate gas flow through an Orifice Meter using AGA 8 compressibility and AGA 3 flow calculations. Supports both metric and imperial units, remembers input values, and generates shareable PDF reports.

by S&P SISTEMAS DE VENTILACION SL.

Diameter conversion (circular to rectangular)Ventilation parameter calculation (diameter, speed, airflow, pressure)Pressure drop calculation for straight sections and system elements

This utility app performs essential calculations for ventilation systems. It offers tools for converting duct sizes, determining air parameters like speed and airflow, and calculating pressure drops. It also includes a unit converter for various measurements.

(1)

GoFly: E6B Aviation Calculator

Flight Computer for Pilots

Live wind triangle with redrawsDetailed calculation breakdowns ('Show the Work')Core E6B tools (TAS, density altitude, time/speed/distance, fuel, crosswind)

This aviation calculator provides pilots with fast, accurate flight planning tools. It features a live wind triangle, detailed calculation breakdowns, and core E6B functions. The app also includes a METAR decoder and weight & balance calculations, with offline functionality for most features.