← Pump System Design
Unit Converter
Free conversions for pump, water and wastewater work. Type a value; every unit updates instantly.
Value
From unit
Specific gravity (head ↔ pressure)
or water temperature (°C)
Pipe velocity from flow and inside diameter
Flow
Flow unit
Inside diameter
Diameter unit
in
mm
Mean velocity V = Q / A, A = πD²/4. Use the actual inside diameter, not the nominal size.
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