// multi-utility computation suite · offline · instant · precise
┌──────────────────────────┐
│ [c] calcalyst_ │
│ computation suite │
└──────────────────────────┘
// select a module to initialize
/ search↵ open firstesc close
// adsenseEMPTY_LEADER_SLOT728×90
// keyboard shortcuts
/focus search
Escclear search · close calc
Enteropen first result
↑↓navigate list
?toggle this panel
// adsenseMOBILE_ANCHOR_SLOT320×50
// keyboard_shortcuts
/focus search
↑↓navigate module list
Enter
open first result from search
open highlighted
compute when module is open
compute when focused in a field
Escclose module · clear selection
⌫
eng.hazen-Williams-pipe-flow Calculator
Calculates pipe flow velocity, head loss, and pipe diameter for water distribution using the Hazen-Williams equation with C factors. Hazen-Williams C values range from 60 (old, tuberculated cast iron) to 150 (smooth plastic) — the head loss coefficient changes dramatically with pipe condition.
Inputs
C Hw
Reference formula or conversion factor shown for context.
D M
Distance across a circle through its centre. Always confirm units match the rest of the calculation.
Hf M
Reference formula or conversion factor shown for context.
L M
Linear measurement. Ensure consistent units: 1 m = 1,000 mm = 3.281 ft.
Results
flow rate Q (L/s)
Flow rate Q — the volume of fluid passing a point per unit time.
flow rate Q (m³/s)
Flow rate Q — the volume of fluid passing a point per unit time.
mean velocity V (m/s)
Arithmetic average — sum divided by count. Simple and familiar, but pulled by outliers. If your data contains extreme values, the median may be more representative.