Pump Head Calculation Excel Sheet | Must Read |

h_friction_pipe = f * (L/D) * (v²/(2g)) Fittings losses (equivalent length method or K-factor):

Friction factor (Swamee-Jain): =0.25/(LOG10(D2/(3.7*B2) + 5.74/G2^0.9))^2 pump head calculation excel sheet

Power formula: =B2*B48*B8*B9/3600000 where B48 = TDH, B2 = Q (m³/h) Step 1 – Create headers Row1: “PUMP HEAD CALCULATION SHEET” Row3 onwards: labels as per tables above. Step 2 – Named ranges (optional but helpful) Select input cells → Formulas → Define Name, e.g. Flow , Density , Gravity . Step 3 – Calculate area & velocity Area_suction = PI()*(D_suc/1000)^2/4 v_suc = Flow_m3h / Area_suction / 3600 Step 4 – Reynolds & friction factor Re = v_suc * (D_suc/1000) / KinVisc f = 0.25 / (LOG10( Roughness/(3.7*(D_suc/1000)) + 5.74/Re^0.9 ))^2 Step 5 – Friction loss per line Pipe loss = f * (L/(D/1000)) * (v^2/(2*Gravity)) h_friction_pipe = f * (L/D) * (v²/(2g)) Fittings

Section,Parameter,Value,Unit Input,Flow rate (Q),100,m³/h Input,Suction level,2,m Input,Discharge level,25,m Input,Suction pressure,1,bar(g) Input,Discharge pressure,2,bar(g) Pipe,Suction length,10,m Pipe,Suction diameter,150,mm Pipe,Discharge length,150,m Pipe,Discharge diameter,150,mm Friction,Roughness,0.03,mm Friction,K_elbow,0.75,- Friction,K_gate valve,0.17,- Result,Static head,33.19,m Result,Friction total,13.25,m Result,Total head,46.44,m Always verify your Excel sheet against a known example: Step 3 – Calculate area & velocity Area_suction