Pressure Drop Calculator LPM LPM → kPa
LPM
Estimated Pressure Drop 2.88 kPa
mm
m
Quick Picks for Flow Rate
Final pressure drop depends on pipe ID, length, fittings, roughness, fluid viscosity, and temperature.
Flow resistance estimate
Pressure Drop Calculator LPM
Estimate pressure drop from LPM for quick pipe and pump checks.
Instant Results Engineering-Grade Precision Clear Assumptions
Pressure Drop Path kPa = 0.02 x (L/D) x (rho x velocity² / 2) / 1000
LPM 25 Flow Rate
flow resistance
inlet Darcy estimate outlet
kPa 2.88 Estimated Pressure Drop
Restriction and pipe length estimate pressure loss.
Result 25 LPM = 2.88 kPa
This uses a simplified Darcy-Weisbach water estimate with friction factor 0.02.
Formula
Pressure Drop Calculator LPM Formula
Flow Rate 25 LPM Pipe Internal Diameter 25 mm Pipe Length 10 m
Darcy estimate
Estimated Pressure Drop 2.88 kPa kPa = 0.02 x (L/D) x (rho x velocity² / 2) / 1000
This uses a simplified Darcy-Weisbach water estimate with friction factor 0.02.
Guide
How the Pressure Drop Calculator LPM Works
Input Flow Rate
Model Darcy estimate
Output 2.88 kPa
Decision Engineering Check
Enter the required inputs: Flow Rate, Pipe Internal Diameter, Pipe Length.
The calculator applies: kPa = 0.02 x (L/D) x (rho x velocity² / 2) / 1000.
The result updates instantly in kPa.
Use the displayed assumption before applying the result to engineering work.
Reference
Pressure Drop Calculator LPM Conversion Table
1 LPM 0.00 kPa
5 LPM 0.12 kPa
10 LPM 0.46 kPa
25 LPM 2.88 kPa
50 LPM 11.53 kPa
100 LPM 46.11 kPa
| Flow Rate (LPM) | kPa |
|---|---|
| 1 | 0.00 |
| 5 | 0.12 |
| 10 | 0.46 |
| 25 | 2.88 |
| 50 | 11.53 |
| 100 | 46.11 |
Applications
Where Pressure Drop Calculator LPM is Used
kPa Pressure Drop Calculator LPM
Pump head checks Pipe sizing review Filter pressure loss Cooling water circuits Explanation
What is Pressure Drop Calculator LPM?
Inputs Flow Rate + Pipe Internal Diameter + Pipe Length
Result Estimated Pressure Drop
The pressure drop calculator uses flow rate, pipe internal diameter, pipe length to calculate estimated pressure drop. It is designed for fast comparison work across pumps, plumbing, gas flow, HVAC, and industrial systems.
Example: 25 LPM = 2.88 kPa
FAQ
Questions About Pressure Drop Calculator LPM
Q1 What does the pressure drop calculator calculate? Q2 What assumption is used for this pressure drop calculator? Q3 Where is the pressure drop calculator used? Q4 Is the pressure drop calculator accurate for engineering design? Q5 Can I use the pressure drop calculator for gases and liquids?
What does the pressure drop calculator calculate?
It converts the entered value into kPa using the formula and assumptions shown on the page.
What assumption is used for this pressure drop calculator?
It uses a simplified Darcy-Weisbach estimate based on flow rate, pipe length, and internal diameter.
Where is the pressure drop calculator used?
It supports early pump head checks, pipe sizing, filter pressure-loss review, and cooling-water estimates.
Is the pressure drop calculator accurate for engineering design?
The math is useful for fast estimation, but engineering-critical work should be checked against manufacturer data, fluid properties, pipe geometry, temperature, pressure, and local standards.
Can I use the pressure drop calculator for gases and liquids?
Use it only when the displayed assumptions match your medium and reference conditions. Gas, fuel, and pressure-drop calculations can change significantly with density, pressure, temperature, and system geometry.