Convert Torque from Kilogram-centimeters to Newton-meters (kg-cm to Nm)

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Single conversion

Kilogram-centimeter to Newton-meter Conversion Formula

To convert from Kilogram-centimeter (kg-cm) to Newton-meter (Nm), use the following formula:

Newton-meter (Nm)

= 0.09806649999787735× Kilogram-centimeter (kg-cm)


Example

Let's convert 5 Kilogram-centimeter (kg-cm) to Newton-meter (Nm).

Using the formula:

5 × 0.09806649999787735 = 0.49033249998938675

Therefore, 5 Kilogram-centimeter (kg-cm) is equal to 0.49033249998938675 Newton-meter (Nm).

How many kilogram-centimeters are in one newton-meter? One Newton-meter (Nm) contains 10.197162130000000063 Kilogram-centimeters (kg-cm) — the inverse of the factor above. Multiplying by 0.09806649999787735 takes you from kilogram-centimeters to newton-meters; multiplying by 10.197162130000000063 brings you back.

Put in words: one kilogram-centimeter equals 0.09806649999787735 newton-meters, so the kilogram-centimeter is the smaller unit of this pair. Converting between them never changes the amount of torque being measured — only the size of the unit you count it in.

What Is a Kilogram-centimeter (kgf·cm)?

A kilogram-centimeter (kgf·cm) is one kilogram-force acting at one centimetre from the axis. It is one hundredth of a kilogram-meter.

  • 1 kgf·cm = 0.0980665 N·m
  • 1 kgf·m = 100 kgf·cm

The Hobby Servo Unit

If you have ever bought a hobby servo, you have seen this unit. Servo torque is published almost universally in kgf·cm — a common 9 g micro servo is rated around 1.8 kgf·cm, a standard-size servo around 10–20 kgf·cm.

The rating tells you how much weight the servo can hold at a given arm length: 10 kgf·cm means it can just support 10 kg at 1 cm from the shaft, or 1 kg at 10 cm, or 0.5 kg at 20 cm. Doubling the arm halves the load it can hold.

Where Kilogram-centimeter Is Used

  • RC servos and hobby robotics — the dominant unit in datasheets and marketplaces.
  • Small gearmotors sold through electronics suppliers.
  • Legacy metric torque specifications for small fasteners.
  • Tyre valve and small assembly torque figures on older equipment.

Converting Kilogram-centimeter

FromToMultiply by
kgf·cmN·m0.0980665
kgf·cmkgf·m0.01
kgf·cmlbf·in0.867962

What Is a Newton-meter (N·m)?

A newton-meter (N·m) is the SI unit of torque — the twisting force that makes something rotate. One newton-meter is produced when a force of one newton acts at a perpendicular distance of one metre from the axis of rotation.

  • Torque = force × distance, so 1 N·m = 1 N × 1 m

Torque Is Force Times Leverage

The distance matters as much as the force. Pushing on a spanner with 20 N at 0.5 m from the bolt gives 10 N·m. The same 20 N applied through a spanner twice as long gives 20 N·m — identical effort, double the turning effect. This is why a breaker bar loosens a bolt that a short wrench cannot.

The distance is always measured perpendicular to the line of the force. Pulling at an angle reduces the effective lever arm and therefore the torque.

A Newton-meter Is Not a Joule

Both work out to the same base units (kg·m²/s²), but they describe different things and must never be interchanged:

  • A joule is energy — a force acting along a distance.
  • A newton-meter is torque — a force acting at a distance, perpendicular to it.

Standards keep them apart deliberately: energy is written in J, torque in N·m.

Where Newton-meters Are Used

  • Fastener specifications — nearly every modern torque figure is given in N·m.
  • Engines and motors — output torque curves, alongside power in kW.
  • Power tools — cordless drills and impact drivers are rated in N·m.
  • Bicycles — carbon components carry N·m limits because overtightening cracks them.

Quick Reference

TorqueTypical example
5 N·mbicycle stem bolt
25 N·mcar spark plug
110 N·mcar wheel nut
400 N·mfamily car engine peak

Kilogram-centimeter to Newton-meter Conversion Table

Here are some quick reference conversions from Kilogram-centimeter (kg-cm) to Newton-meter (Nm):

Kilogram-centimetersNewton-meters
0.000001 kg-cm9.806649999787735× 10-8 Nm
0.001 kg-cm0.00009806649999787735 Nm
0.1 kg-cm0.009806649999787735 Nm
1 kg-cm0.09806649999787735 Nm
2 kg-cm0.1961329999957547 Nm
3 kg-cm0.29419949999363205 Nm
4 kg-cm0.3922659999915094 Nm
5 kg-cm0.49033249998938675 Nm
6 kg-cm0.5883989999872641 Nm
7 kg-cm0.68646549998514145 Nm
8 kg-cm0.7845319999830188 Nm
9 kg-cm0.88259849998089615 Nm
10 kg-cm0.9806649999787735 Nm
20 kg-cm1.961329999957547 Nm
30 kg-cm2.9419949999363205 Nm
40 kg-cm3.922659999915094 Nm
50 kg-cm4.9033249998938675 Nm
100 kg-cm9.806649999787735 Nm
1000 kg-cm98.06649999787735 Nm
10000 kg-cm980.6649999787735 Nm