Velocity Head Calculator
Convert velocity to velocity head V²/2g — the building block of every loss calculation.
Fitting losses are K × this number. At 3 m/s one velocity head is 0.46 m — a fully open globe valve (K≈10) costs 4.6 m of pump head.
Formula
Velocity Head Calculator is a free velocity head for process, mechanical and water engineers — instant, accurate and 100% client-side, with the governing formula and reference shown next to the result so the number can be defended, not just quoted.
About Velocity Head Calculator
Convert velocity to velocity head V²/2g — the building block of every loss calculation. The calculation implements h_v = V² / 2g (Crane TP-410). Fitting losses are K × this number. At 3 m/s one velocity head is 0.46 m — a fully open globe valve (K≈10) costs 4.6 m of pump head.
How to use Velocity Head Calculator
- 1Enter Velocity in m/s.
- 2Read Velocity head, Dynamic pressure (water) instantly — no submit button needed.
- 3Need US units? Flip the SI/Imperial toggle and every field converts.
Why use Velocity Head Calculator?
- ✓Implements the standard formula — h_v = V² / 2g
- ✓Reference cited on-page: Crane TP-410
- ✓One-click SI ⇄ Imperial toggle — values convert in place, physics stays in SI
- ✓Live worked example: the substitution recomputes from your numbers
- ✓Runs entirely in your browser — nothing uploaded, free forever
Frequently asked questions
What formula does the Velocity Head Calculator use?+
It computes h_v = V² / 2g, per Crane TP-410. The formula is displayed under the result along with a worked example substituted with your own inputs.
What should I keep in mind when using this calculator?+
Fitting losses are K × this number. At 3 m/s one velocity head is 0.46 m — a fully open globe valve (K≈10) costs 4.6 m of pump head.
Does this work for any fluid?+
Yes — density and viscosity are inputs (with common fluids suggested in the field hints), so the same physics applies to water, oils, gases and process fluids. Compute always runs in SI internally, so unit mix-ups can't corrupt the result.
Is the Velocity Head Calculator free to use?+
Yes — completely free, no sign-up, no limits. It runs client-side in your browser, so inputs stay private and results are instant even on slow connections.
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