Calculate air flow and duct sizes
Calculates air volume, pressure loss, velocity, and duct size for rectangular or round ducts. Supports both imperial and metric units. Users input values to determine required dimensions and system performance.
Showing 121–140 of 1,000 ranked alternatives.
Pool and Spa Resources, LLC
Calculate chemicals accurately
Calculate chemical dosages for pools or hot tubs based on water volume and test results. Input pH, alkalinity, and sanitizer levels to determine treatment amounts. Export results and share with service professionals.
Studio Nano Ship Inc
Monitor pressure and track trends
Monitor atmospheric pressure with sea level adjusted readings. View pressure charts and select from 20 background colors. Display pressure in multiple units including hPa, inHg, and kPa. Compatible with various iPhone and iPad models.
Historycentral.com Inc
Professional calculator for plumbing and HVAC.
The app offers over 200 formulas and tools for plumbing, HVAC, and mechanical contractors. It includes calculators for water flow, piping, drainage, water heaters, pumps, gas, medical gas, pools, septic, and thermal expansion.
Harjot Singh
Convert units between categories with ease
Convert units across multiple categories including area, data, fuel-milage, length, power, pressure, speed, temperature, time, volume, and weight-mass. Switch between units with a single tap. View conversion results and history.
Watsco, Inc.
View order status, access product info,
Access product information and tools for /R professionals. View real-time order status. Use a duct calculator to determine size, material, and specifications. Link online account to manage prices, add items to cart, and check inventory.
Ramon Rivas
Convert with precision and speed
Convert across categories with a modern interface. Navigate using sidebar and tab bar. Create multiple windows and drag items to new screens. Share data and access context menus. Includes a quick start guide and light/dark modes.
Ratha Sou
Calculate, edit, and save equations
Perform basic and scientific calculations with equation display and history tracking. Switch between binary, octal, decimal, and hexadecimal modes. Calculate fractions directly. Use widget for quick computations.
Zanthic Automation Inc.
Calculate forces and speeds
Calculate cylinder forces and speeds. Determine pump speed, torque, and power using displacement, flow, and pressure. Compute fluid velocity, cross-sectional area, and Reynolds number for lines.
Halliburton
Industry data for oil and gas wells
The app provides instant access to key dimensions and strengths for pipe. Users can look up specifications for tubulars to quickly calculate capacity and annulus volumes in various units.
DROXIC OOD
Elegant and simple unit converter app.
The app offers over 25 categories and 450 units for conversion, including 150 currencies. It supports 24 languages and is designed for iPhone, iPad, and iPod touch.
Keystone Pumps LTD
Calculate slurry pump system head pressure.
The app assists engineers with slurry pipe and pump system calculations. It computes required head pressure and limiting settling velocity based on user-entered system parameters.
Gero Mazza
Calculate, convert, and compare values
Perform calculations with a standard featuring extra-large buttons and functions like delete, x², √, and %. Use a scientific with 30 advanced functions. Convert units, calculate loans, and determine tips.
Lu A Oo
Convert units with one tap
Convert units across 77 categories with over 1000 options. Perform multiple conversions on one screen. Add custom units and categories. Use built-in calculator and numeric keyboard. Convert complex measurements like height and weight between systems.
Anna Filobok
Calculate feet instantly
Calculate feet using length, width, and thickness in feet, inches, centimeters, meters, or yards. Input quantity for total feet. Convert between imperial and metric units in real time.
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