Hydraulic Hose Size & Velocity Calculator
Check oil velocity through a selected hose size, or calculate the minimum hose ID required for a target hydraulic oil velocity.
Enter Hose Details
Use Check Velocity if you already know the hose ID. Use Find Hose Size if you know the flow rate and target oil velocity. Suction sizing is set conservatively at 0.5 m/sec to better match common hose nomograph guidance.
Hose Results
Oil Velocity
— m/sec
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Suction Guide
0.5–1.0 m/s
Return Guide
1.0–2.0 m/s
Pressure Guide
2.0–4.5 m/s
Nearest Common Size
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Dash Size
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Calculated ID
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Important Note
Velocity limits vary depending on hose type, pressure, oil viscosity, temperature, duty cycle, noise limits and manufacturer recommendations. Use this calculator as a general guide only.
Use this visual hose sizing chart to quickly determine suitable hydraulic hose sizes based on flow rate and recommended oil velocity.
