How do I convert Newton to kilogram-force?

Use 1 kgf = 9.80665 N. So N ÷ 9.80665 = kgf.

How do I convert N·m to lbf·ft?

Multiply N·m by 0.737562149 to get lbf·ft.

What's the difference between force and torque?

Force is a push or pull (N, lbf). Torque is a turning effect (N·m, lbf·ft) and equals force × distance perpendicular to the axis.

Force & Torque Conversions – N, kgf, lbf, N·m, lbf·ft

Force & Torque Converter

Engineering-friendly converter for force (N, kN, kgf, lbf) and torque (N·m, N·mm, kgf·m, kgf·cm, lbf·ft, lbf·in). Switch tab, choose units, enter a value: we normalize to a base unit and convert accurately.

Value

From unit

To unit

Converted 100 N → 10.1972 kgf

Force result

10.1972

Reference tables

Force
Unit	To Newton (N)
1 N	1
1 kN	1000
1 kgf	9.80665
1 lbf	4.4482216152605

Torque
Unit	To N·m
1 N·m	1
1 N·mm	0.001
1 kgf·m	9.80665
1 kgf·cm	0.0980665
1 lbf·ft	1.3558179483314
1 lbf·in	0.1130

How the converter works

We normalize to a base unit and then convert to the target unit.

General formula (linear)

\( \text{target} = \text{value} \times \frac{\text{factorFrom}}{\text{factorTo}} \)

For force, the base unit is Newton (N). For torque, the base unit is Newton-metre (N·m).

Force basics

1 kgf is the force due to 1 kg mass under standard gravity: 1 kgf = 9.80665 N. This is common in older manuals.

Torque basics

Torque is force × lever arm. Converting lbf·ft to N·m is common when matching tools to engineering specs.