Calculate pressure drop, fluid velocity, Reynolds number, and friction factor for liquids and gases. Create custom projects, add and edit pipes, fluids, and fittings. Switch between metric and imperial units. Share calculations with other users.
by Southwire Company★ 4.65 ratingsUtilitiesFreeData updated 2026-09-10
Convert units and currencies across hundreds of categories with real-time exchange rates updated every 6 hours. Calculate mortgages, loans, tips, and fuel consumption. Edit, create, or download customizable templates for various conversions.
Allows users to scan and interpret fault codes from heavy duty trucks. It provides troubleshooting guidance and recommends actions. Users can monitor regen status, alerts, and derates.
Calculate size for round or rectangular ductwork. Adjust airflow, diameter, width, or height using sliders. Enter values directly for precise measurements. Lock friction calculations for accurate results.
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Calculate rates of hydrants and assess maximum water system using the Hazen-Williams formula. Input pipe diameter, length, and pressure to determine . Results displayed in imperial units.
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Calculate casing sizes, weights, and hydrostatic pressure with unit conversions between imperial and metric systems. Switch units instantly. Perform pressure calculations for oil and gas applications. Access accurate data for field and office use.
Measure by matching the inner edge to the 's white circle. Adjust the slider to align the diameter or circumference. View results in metric or imperial units, including US, Canadian, and Australian sizing systems.
Determine properties with detailed data on common refrigerants. View fluid properties, safety groups, GWP, ODP, and oil type recommendations. Access additional information, links, and documents through the "More..." menu.
The app calculates pressure losses in piping systems for engineers and contractors. It supports US and SI units, includes a pipe material library, and a fittings database for total system pressure loss calculations.
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Convert values between units in 22 categories including acceleration, angle, area, and data storage. Support currency exchange for 160 currencies. Search units by category or globally. Bookmark frequently used conversions.
Convert units across 16 categories with instant results. Switch between metric, imperial, and other systems. Calculate conversions for length, weight, temperature, and more. Store frequently used values for quick access.