Force Converter – Newtons, kgf & lbf Table
This calculator converts force units: 1 kgf = 9.80665 N and 1 lbf = 4.4482216 N exactly.
- Free converter with formulas, examples and tables.
Figures are estimates from this calculator’s standard formula — adjust the inputs in the tool below for your exact number.
How the Force Converter Works
This force converter routes every input through exact definitions — 1 kgf = 9.80665 N and 1 lbf = 4.4482216 N exactly. Enter a value, pick the source and target units, and the result appears instantly with the factor applied shown beside it. Newtons express force in SI, kilogram-force survives in everyday speech and old machinery plates, and pound-force anchors US engineering — three vocabularies describing the same push. The standard links them exactly: 1 kgf = 9.80665 N and 1 lbf = 4.4482216152605 N, both by international definition tied to standard gravity. A mini table of the head factor makes spot-checks immediate: 1 kgf = 9.8066 N; 5 kgf = 49.0332 N; 10 kgf = 98.0665 N; 50 kgf = 490.3325 N; 100 kgf = 980.665 N. Feel the scale: an apple weighs about 1 N, a liter of water pushes down with 9.8 N, and an adult standing still loads the floor with roughly 700 N.
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Step 1
Enter the value you want to convert
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Step 2
Select the source unit you are converting from
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Step 3
Select the target unit you want as the result
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Step 4
Read the exact result, then swap or copy as needed
Use Cases
Converting machinery load ratings between N, kgf and lbf
Solving statics homework in consistent units
Specifying actuators and clamps for assemblies
Tips
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Spec sheets written "daN" mean dekanewrons = 10 N each
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Standard gravity is a convention, not your location's value
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1 lbf ≈ 4.448 N; 100 lbf ≈ 445 N for quick checks
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1 kgf = 9.80665 N — carry all five decimals in engineering work
Common Mistakes
Using local gravity (9.78–9.83 m/s²) where the standard 9.80665 is specified
Mixing lbf·ft torque with N·m without converting the force and length both
Reading "kg" on a European crane plate as mass when it means kgf loading
FAQs
How many newtons in one pound-force?
Is kilogram-force the same as kilograms?
Which units does this force converter cover?
How do I use the force converter?
Is the force conversion accurate?
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