Engineering Unit Converter

Instantly convert SI metric and Imperial/US customary engineering units with a full live table of equivalents.

Unit Equivalent value (click to copy)
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What does the Engineering Unit Converter do and how to use it?

The Herramix Engineering Unit Converter is built for mechanical, civil, chemical, hydraulic, and electrical engineers who need fast, exact conversions between SI metric, gravitational technical, and US Customary / Imperial units. Instead of converting only one pair at a time, it renders the entire table of equivalent units simultaneously.

Select one of the eight engineering categories—Pressure, Torque, Volumetric Flow Rate, Power, Energy, Length, Mass, or Temperature—type your value, and click any row in the output table to copy the result to your clipboard.

Usage example

Scenario: A hydraulic manifold operates at 8 bar and you need the pressure in PSI and MPa to select gauges and relief valves.

Result: Selecting "Pressure", entering 8, and choosing bar immediately shows 116.03 psi, 0.8 MPa, 800 kPa, and 8.1577 kgf/cm².

Frequently Asked Questions

How many PSI are in 1 bar of pressure?

One bar is defined as exactly 100,000 Pa (100 kPa), which equals approximately 14.5038 PSI (pounds per square inch) or 1.0197 kgf/cm².

How do you convert torque from N·m to foot-pounds (lbf·ft)?

Multiply the value in Newton-meters (N·m) by 0.737562. For example, 100 N·m equals 73.76 lbf·ft (or 885.07 lbf·in).

What is the difference between mechanical HP and metric horsepower (CV/PS)?

Imperial mechanical horsepower (HP) equals 745.7 W, whereas metric horsepower (CV or PS) equals 735.49875 W.

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