Engineering Unit Converter
Convert various engineering units
Features
11 fields including force and torque
Covers engineering units from density and acceleration to viscosity and moment of inertia
Simultaneous conversion to all units in a field
Just pick one base unit to show all related units at once in a table
Both SI and gravitational unit systems
Convert between units from different systems, such as newtons and kilograms-force
Automatic calculation as you type
No convert button needed; results update instantly each time you change a value
How to use
Select the field to convert
Choose the target field such as force, torque, or density from the dropdown
Enter the base unit and value
Pick the source unit under "Base unit" and enter a number in "Value" (decimals allowed)
Check and copy the converted results
Review the converted values for all units in the list and copy them with each row's button
Use cases
Load calculation in mechanical design
Convert loads written in kgf to newtons for use in CAE and strength calculations
Standardizing tightening torque units
Unify values in maintenance manuals where tool N·m and lbf·ft are mixed
Cross-checking material density data
Compare property values in different units such as g/cm³ and kg/m³ on the same basis
Converting figures from overseas standards
Convert imperial engineering units to domestic SI units for drawings and specifications
Studying physics and working through problems
Verify your calculation steps while checking unit conversions for acceleration and angular velocity
Basic Knowledge
What is Newton (N)?
Newton is the unit of force in the International System of Units (SI). 1 N is the force that gives an acceleration of 1 m per second squared to a 1 kg mass. On Earth, this is equivalent to the gravitational force acting on an object of approximately 102 g.
Difference Between SI Units and Gravitational Units
The unit of force exists in two systems: SI's N and the gravitational unit system's kgf (kilogram-force), which is defined as 1 kgf = 9.80665 N. In older drawings and tool specification sheets, the notations kgf and kgf·m are still in use.
Safety and privacy
Runs entirely in your browser
Your input data is processed only within your browser and is never sent externally.
Processing only in your browser
unit conversion is processed entirely within your browser, and input data is not sent to any server.
Communications encrypted with HTTPS
Page loading is also encrypted by TLS, and content cannot be read by third parties.
No transmission to third parties
Input content is not sent to external services such as ad networks or trackers.
No automatic saving of results
the converted results and input suggestions are not stored on the server.
Follow RAKKOTOOLS on Google Search
220 useful tools become easier to find from Google Search and AI Search!
- Found in search
- Also shown in AI Search
- Discover new tools
Featured Tools
RAKKOTOOLS is free to use!
Available free of charge for individuals and corporations, commercial and non-commercial use alike.No prior permission or usage application is required. Feel free to use it in various situations.
Use in streaming and videos
Use various tools such as lottery draws and raffles in live streams and videos.
Use in schools, work, and events
Can be used in various situations such as classes, team division, internal work, and events.
Introduction on Web, books, and SNS
Feel free to introduce it as a useful tool on web media, books, SNS, and other platforms.
Commercial use
Can be used for commercial purposes such as research, calculation, processing, and conversion in business and production.
If you mention it, I get motivated to create more tools!
If using in streaming and videos
Link to RAKKOTOOLS in the description, or Mention or display that you are using RAKKOTOOLS in the stream or video.
Credit example for the description
Usage guidelinesYou are free to use it for normal purposes. However, use for purposes that violate laws, infringe on third-party rights, impose significant load on the service, or otherwise interfere with service operation is prohibited.
We do not guarantee the accuracy or completeness of information and calculation results obtained from each tool.
This notice is a translation of the original Japanese text. If there is any discrepancy between the translation and the original, the Japanese original takes precedence.