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Pump Sizing Calculator

Accurately Size Water, Irrigation, and Industrial Pumps for Flow, Head & Power

Use this pump sizing calculator to determine the perfect pump for domestic or commercial water supply.

10–5,000 liters per minute
5–300 meters (incl. friction)
50–90% (typical)

Enter water system details

Design drip, sprinkler, or pivot systems with this pump sizing calculator.

0.5–500 acres
1–12 hours per day

Enter irrigation parameters

Size pumps for chemical, slurry, or process fluid transfer using the pump sizing calculator.

5–10,000 gallons per minute
10–1,000 feet
0.8–2.0 (water = 1.0)

Enter process details

Pump Sizing Calculator: Your Ultimate Pump Selection Tool

Welcome to Pakistan's most trusted pump sizing calculator used by 75,000+ engineers, farmers, and facility managers. Whether you're pumping water from a tube well, irrigating crops, or transferring industrial fluids, get precise flow, head, and power calculations in seconds.

"Fluxus recte mensuratus, systema perfectum." — Latin wisdom on measured flow

How the Pump Sizing Calculator Works

Our pump sizing calculator uses ISO 5198 and Hydraulic Institute standards with built-in friction loss and safety factors.

  • Water Mode: LPM → HP with TDH
  • Irrigation Mode: Area-based flow demand
  • Industrial Mode: GPM, TDH, SG → BHP

Pump Sizing Calculator: Common Applications

  • Tube well & submersible pumps
  • Drip & sprinkler irrigation
  • Boiler feed & cooling towers
  • Chemical transfer & slurry
  • Fire fighting systems

Why Engineers Love This Pump Sizing Calculator

  • 100% Accurate: No oversizing
  • Pakistani Units: LPM, meters, acres
  • Real Efficiency: 50–90% range
  • Mobile Ready: Use on-site
  • Free Forever: No registration

Pump Sizing Calculator: Pro Tips from Pakistani Experts

  • Add 10–15% to calculated head for aging
  • Use 6–8 hours runtime for irrigation
  • Never run pump at end of curve
  • Include suction lift in TDH
  • Check NPSH to avoid cavitation

Start Sizing Your Pump Now

Stop guessing. Use Pakistan's #1 pump sizing calculator to select the perfect pump and save on energy and cost.

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