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.
by Historycentral.com Inc★ 4.67 ratingsProductivityFreeData updated 2026-09-10
Calculate airflow displacement by inputting velocity or volume. Select duct type and dimensions with unit options. Instantly display results in preferred units including fl/min, m/s, and ft3/min.
Calculate sizing for low and high pressure gas systems by entering piping and gas properties. Input pressure, flow rate, and other parameters. Generate results for both low (≤1.5 psi) and high (>1.5 psi) pressure systems.
Calculate for trace heating systems using precise formulas. Input pipe dimensions, ambient temperature, and insulation data. Determine required wattage and verify insulation effectiveness. Export results for documentation or sharing.
Track usage with . Log each item's wear count and view wear history over time. Add notes for maintenance, repairs, and sizing. Monitor which items are worn most and least. Create outfit records for past days.
Convert units between U.S. standard and metric systems. Calculate length, weight, volume, and temperature. Switch between imperial and metric measurements. Store frequently used conversions.
Calculate in US Gallons, Imperial Gallons, or Liters for square, rectangular, free form, circular, oval, and elliptical shapes. Convert feet to meters, temperature, pressure, flow rate, and gallons to liters.
Measure size using camera with AR technology or place on screen within a designated circle. View diameter and size results. Save measurements for future reference.
Calculate Total Dynamic Head, Net Positive Suction Head, and Friction Loss. Save and share calculation results. Suggest pumps from a catalog based on system needs. Function without internet connection on Apple devices.