Force Converter for Newtons, Pounds-force and More
This force converter turns any value between 15 force units instantly, so you never have to look up a conversion factor again. Type a number, pick your units, and the result appears as you type.
Force is measured differently across fields and countries: scientists use Newtons (the SI standard), US engineers often work in pounds-force, and older specifications still use kilogram-force or dynes. Whether you need newton to kgf, newton to lbf, or any other pairing, this tool handles the math with internationally recognized factors.
How to Convert Force Units
Enter a value
Type the force amount into the first field, for example 100. The converter recalculates in real time, so there is no calculate button to press.
Pick your units
Use the two unit dropdowns to choose your source and target units, such as Newton to Pound-force. Start typing in a dropdown to search the list by name or symbol.
Read or reverse the result
The converted value appears instantly. Type in the second field to convert the other way, or hit the Swap button to flip the source and target units.
Compare and copy all units
Below the converter, your value is shown in every supported unit at once, grouped by SI, Gravitational, Imperial, and CGS. Use Customize Units to show or hide units, set Decimals, and copy a single row or Copy All Results.
Features
Instant Real-Time Conversion
Results update as you type using exact factors, for example 1 N = 0.2248089431 lbf and 1 kgf = 9.80665 N.
Multi-Unit Results Display
See your value converted to all 15 units at once, grouped by SI, Gravitational, Imperial, and CGS, with the source unit highlighted.
Bidirectional Input
Type in either field and the other updates automatically, or use the Swap button to reverse the conversion direction.
Customizable Unit List
Toggle individual units on or off so the results panel only shows the unit systems you actually work with.
Precision Control
Choose 2, 4, 6, or 8 decimal places, or Auto. Very large or very small values switch to scientific notation automatically.
Unit Reference Table
Open the reference panel to see each unit's symbol, value in Newtons, and typical use case, perfect for unfamiliar units.
Searchable Unit Dropdowns
Each dropdown has a search box, so you can filter the unit list by name or symbol instead of scrolling.
Keyboard Friendly
Tab between fields, type to search a dropdown, and press Escape to close it without reaching for the mouse.
Works on All Devices
A fully responsive layout with finger-friendly touch targets works on desktop, tablet, and phone.
Dark Mode Support
A built-in dark theme keeps the converter comfortable to read in low-light environments.
Frequently Asked Questions
How do you convert newtons to kgf?
Divide the Newton value by 9.80665, because 1 kgf equals the force of gravity on 1 kg at standard gravity. For example, 100 N ÷ 9.80665 ≈ 10.197 kgf. Set Newton as the source unit and kilogram-force as the target to do it automatically.
How do you convert kgf to newton?
Multiply the kilogram-force value by 9.80665. For example, 5 kgf × 9.80665 = 49.03 N. Choose kilogram-force as the source unit and Newton as the target.
How many newtons are in 1 lbf?
One pound-force equals 4.4482216153 newtons. Going the other way, 1 N equals about 0.2248089431 lbf. The converter uses these exact factors so your results stay precise.
What is the SI unit of force?
The Newton (N) is the SI unit of force, defined as the force needed to accelerate 1 kg at 1 m/s². Kilonewtons (kN), meganewtons (MN), millinewtons (mN), and micronewtons (μN) are SI multiples of the Newton.
What is the difference between pound-force and pound?
Pound (lb) is a unit of mass, while pound-force (lbf) is a unit of force, the gravitational pull on one pound of mass at standard gravity. In everyday speech "pounds" usually means weight (a force), but in physics the two are distinct.
What is a dyne, and how does it relate to a newton?
A dyne is the CGS unit of force, the force needed to accelerate 1 gram at 1 cm/s². It equals 10⁻⁵ N (0.00001 N), so 1 N is 100,000 dynes. It is rarely used today but appears in older scientific literature.
What is a kip?
A kip equals 1,000 pounds-force (about 4,448 N). US structural engineers use it to write large forces without trailing zeros, so building and bridge loads are often given in kips.
Why are there two different ton-force units?
Short ton-force (US) is based on 2,000 pounds, while long ton-force (UK) is based on 2,240 pounds, and the metric tonne-force is based on 1,000 kilograms. Different countries historically defined a "ton" differently, so all three are included.
Are the conversion results accurate?
Yes. The converter uses internationally recognized factors with high precision. For gravitational units it applies standard gravity g = 9.80665 m/s² as defined by the International Bureau of Weights and Measures.
Is my data private when I use this converter?
Yes. Every calculation happens locally in your browser. Your values are never uploaded to a server, and nothing you enter is stored or tracked.
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