ToolnozaENGINEERING TOOL
Pipe Pressure Drop Calculator
Calculate pipe friction pressure loss and head loss using Darcy–Weisbach with a user-entered Darcy factor and fittings K.
Pipe Pressure Drop Calculator
FREE ONLINE TOOLSTEP BY STEP
How to use pipe pressure drop calculator
- Check the input units and assumptions.
- Review the result and example.
IN PRACTICE
Example
3.6 m³/h, D 50 mm, L 20 m, ρ 998 kg/m³, Darcy f 0.02, ΣK 2: 1294.32 Pa.
GOOD TO KNOW
Which formula and assumptions are used?
v = 4Q / (πD²); Δp = (f × L / D + ΣK) × ρ × v² / 2; h = Δp / (ρg). Steady incompressible full-pipe flow. Enter a Darcy friction factor from your flow regime and pipe condition, not a Fanning factor. Static elevation, pumps and compressible gas are excluded.