Free Force Converter – Convert Newtons, lbf & More
Convert between newtons, kilonewtons, dynes and pounds-force.
About the Force Converter
What is the Force Converter?
A force converter changes a force value between newtons, dynes, kilogram-force and imperial pound-force units.
Why use this calculator?
Structural engineering, physics homework and equipment specs mix force units, and a converter keeps calculations consistent.
How to use it
- Enter the force value.
- Choose the source and target units.
- Read the converted force.
Formula
One newton is the force that accelerates 1 kg at 1 m/s²; kg-force = 9.80665 N.
Dyne is the small CGS unit of force, equal to 10⁻⁵ newtons.
Frequently Asked Questions
How many newtons is a pound-force?
One pound-force is about 4.448 newtons.
What is kilogram-force?
It is the force gravity exerts on one kilogram, equal to 9.80665 newtons.
How precise are the conversions?
Conversions use standard, internationally defined factors and are rounded for display. They are accurate to the number of digits shown.
Can I convert back and forth without losing accuracy?
Yes. Enter the original value to get an exact inverse conversion; avoid chaining rounded results if you need maximum precision.
Which measurement system is used?
Both metric (SI) and US customary / imperial units are supported and clearly labelled.
Is this calculator free to use?
Yes. Every calculator on this site is completely free, with no hidden fees, no subscriptions and no limits on how many times you can use it.
How accurate are the results?
We use standard, widely accepted formulas and calculate in your browser using double-precision arithmetic. Results are rounded for readability, so treat them as reliable estimates rather than a guarantee. Real-world factors can vary the true figure.
Can I add this calculator to my own website?
Yes. Open this calculator page and use the "Add to your website" box in the sidebar to copy a ready-made iframe snippet, then paste it into any HTML page.
Does it work on a phone or tablet?
Yes. The layout is fully responsive, so it works on desktops, laptops, tablets and mobile phones, and every input adapts to touch screens.
Is the information I type kept private?
Yes. All calculations run locally in your browser. Nothing you enter is uploaded, stored or shared with anyone.