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Pump Sizing Calculator helps contractors and tradespeople accurately size, spec, and estimate materials and systems.

Formule

Pump HP = (Flow GPM × Total Head ft) / (3960 × Pump Efficiency)

Guide étape par étape

  1. 1Calculate total head (static + friction + pressure), select pump curve
  2. 2Apply the formula using your project measurements
  3. 3Add required safety factors or waste allowances per code

Exemples résolus

Entrée
50 GPM, 100 ft total head, 70% efficiency
Résultat
HP = (50 × 100)/(3960 × 0.70) = 1.8 HP

Erreurs courantes à éviter

  • ✕Not applying code-required safety factors or derating
  • ✕Forgetting to account for waste and cut losses in material estimates

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Paramètres

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