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How do I convert force between newtons, kgf, lbf and dyne?

Type a value into AnyTool Force Converter and pick the units. It instantly converts both ways between newton, kilonewton, meganewton, millinewton, dyne, kilogram-force (kgf/kilopond), gram-force, tonne-force, pound-force (lbf), ounce-force, poundal and kip, and shows the value in every unit at once in a copyable table. Everything is calculated in your browser, so nothing is uploaded.

  • Live two-way conversion — type in either field and the other updates
  • Newton, kN, MN, mN, dyne, kgf, gf, tonne-force, lbf, ozf, poundal and kip
  • See the value in every unit at once, each row copyable
  • Exact factors through a newton base (1 kgf = 9.80665 N, 1 lbf = 4.4482216 N)
  • 100% in your browser — no upload, no signup, works offline

What is

Force Conversion

Force conversion changes a force from one unit to another — for example newtons to pound-force. The newton (N) is the SI unit, defined as the force that accelerates one kilogram at one metre per second squared (1 N = 1 kg·m/s²). Each other unit is a fixed multiple of the newton, so conversion is a single multiply through a newton base.

Converters

Related terms

NewtonKilogram-forcePound-forceDyne

Frequently Asked Questions

One kilogram-force equals exactly 9.80665 newtons. So 10 kgf is 98.0665 N.

A kilogram-force (kgf, also called a kilopond) is the weight of a one-kilogram mass under standard gravity, so it equals exactly 9.80665 N by definition. To convert kgf to newtons multiply by 9.80665; to go the other way, divide newtons by 9.80665. For example 1 kgf = 9.80665 N and 100 N ≈ 10.197 kgf.

Divide newtons by 4.4482216, since 1 lbf = 4.4482216 N. So 100 N ≈ 22.48 lbf.

One pound-force (lbf) is the weight of a one-pound mass under standard gravity and equals exactly 4.4482216152605 N (0.45359237 kg × 9.80665 m/s²). To convert newtons to pound-force divide by 4.4482216; to convert pound-force to newtons multiply by it. So 1 lbf = 4.448 N and 1 kN ≈ 224.8 lbf.

A dyne is the CGS unit of force; 1 newton equals exactly 100,000 dyne.

The dyne (dyn) is the centimetre-gram-second unit of force — the force that accelerates one gram at one centimetre per second squared. Because 1 N = 1 kg·m/s² and 1 dyne = 1 g·cm/s², one newton equals exactly 100,000 dyne (1e5). To convert newtons to dyne multiply by 100,000; for dyne to newtons multiply by 0.00001.

No. Every calculation runs in your browser, so nothing is sent to a server and it works offline.

AnyTool Force Converter computes every result locally in JavaScript using exact factors through a newton base. No value is uploaded, there is no tracking, and the page keeps working offline after the first load.

Detailed Explanation

Methodology

How the Force Converter Works

AnyTool Force Converter performs every calculation in the browser. Each unit declares a single linear factor relative to a shared newton base — the exact number of newtons in one of that unit — so any unit converts to any other through newtons without an N-by-N table. The factors are the internationally-agreed definitions: a kilonewton is 1000 N, a meganewton 1e6 N, a millinewton 0.001 N and a dyne exactly 1e-5 N (1 N = 100,000 dyne). Gravitational units use standard gravity g₀ = 9.80665 m/s², so a kilogram-force is exactly 9.80665 N, a gram-force 0.00980665 N and a tonne-force 9806.65 N. The US/Imperial units follow from the exact pound (0.45359237 kg) and foot (0.3048 m): a pound-force is 4.4482216152605 N, an ounce-force lbf/16, a poundal 0.138254954376 N and a kip 1000 lbf. A value is multiplied to newtons and then divided into the target unit.

  • Twelve units spanning SI, CGS, gravitational and US/Imperial systems
  • The newton is the shared base; each unit is one exact factor
  • Gravitational units use standard gravity g₀ = 9.80665 m/s² (kgf = 9.80665 N exactly)
  • Conversion is value to base to value, so any unit maps to any other
  • All arithmetic is client-side JavaScript — no server round-trip
How It Works

All Units, Precision and Reference

A single input is converted into every force unit at once in a copyable table, with the source and target rows highlighted. A decimals control sets precision from 0 to 10 places, and magnitudes that are very large or very small automatically switch to scientific notation so results stay readable. A formula reference, a common-conversions list and a units-at-a-glance table (showing each unit in newtons and which measurement system it belongs to) accompany the converter.

  • Convert-to-all table shows the value in every unit simultaneously
  • Each unit row is individually copyable
  • Adjustable precision from 0 to 10 decimal places
  • Automatic scientific notation for extreme magnitudes
  • Built-in formula reference and a units-by-system table
Privacy & Security

Privacy and Offline Use

Because all conversion runs in the browser, no value is sent to a server, there is no account or tracking, and the page works offline after first load. The converter is built on a shared, unit-tested conversion engine that other AnyTool unit converters reuse, so behaviour is consistent across the site.

Force conversion: in-browser (AnyTool) vs typical online converters
CapabilityAnyToolTypical online converters
ProcessingRuns in your browserOften server-side
Units12: SI, CGS, gravitational and US/ImperialOften newton, kgf and lbf only
Factor accuracyExact definitions (kgf = 9.80665 N)Frequently rounded constants
Two-way inputEdit either field, both updateUsually one-direction with a button
All units at onceYes, copyable tableOften one target at a time
Precision controlAdjustable 0-10 decimalsFrequently fixed
Works offlineYes (PWA)No
Cost / signupFree, no signupOften ad-heavy or gated

AnyTool converts every force unit locally through an exact newton base and uploads nothing.