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

Newton-meter to Kilogram-centimeter Conversion Formula

Example

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

Using the formula:

Therefore, 5 Newton-meter (Nm) is equal to 50.985810650000000315 Kilogram-centimeter (kg-cm).

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

Put in words: one newton-meter equals 10.197162130000000063 kilogram-centimeters, so the newton-meter is the larger 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 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

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

Newton-meter to Kilogram-centimeter Conversion Table

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