Technical conversion hub
Engineering Converters
A focused directory for mechanical, civil, industrial, automotive, workshop, and technical conversions. The calculators handle the unit arithmetic; engineering decisions should still use the correct design standard, material condition, equipment rating, and safety factor.
Featured Engineering Converters
Browse all categories →Torque and fasteners
Convert Nm, ft-lb, in-lb, kgf·m and related torque units used for engines, bolts, tools, motors, and machinery.
Pressure and fluid systems
Move between PSI, kPa, bar, atmosphere, water-column units, pascals, and other engineering pressure units.
Density and materials
Convert density values used for concrete, soil, liquids, gases, insulation, freight, and material data sheets.
Power, energy, force and flow
Compare machinery power, energy, mechanical force, and process flow units without mixing dimensions or unit systems.
Related Converter Categories
Accuracy for Professional Work
These tools convert units using the factors and formulas stored in UnitConverterHQ. A correct unit conversion does not replace engineering design, commissioning, equipment selection, applicable codes, manufacturer data, or professional judgment. Keep the original measurement precision and verify safety-critical work against the governing standard.
Frequently Asked Questions
View sitemap →Can I use these converters for engineering design?
Use them for unit conversion and checking arithmetic. Final engineering design should also follow the governing code, project specification, equipment data, tolerances, and safety requirements.
Why are some engineering units very similar but not identical?
Different unit systems may use different reference definitions. For example, mechanical horsepower and metric horsepower are close but not identical, and US and imperial volume units can differ.
Should I round engineering conversions?
Keep enough digits during the calculation and round only at the end according to the precision of the source measurement and the requirements of the work.