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Convert Gram-centimeters squared to Kilogram-centimeters squared

Instantly convert Gram-centimeters squared (g·cm²) to Kilogram-centimeters squared (kg·cm²) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Formula: g·cm² to kg·cm²multiply by 1.0000e-3

Reference Table

Gram-centimeters squared (g·cm²)Kilogram-centimeters squared (kg·cm²)
10.001
50.005
100.01
250.025
500.05
1000.1

How to Convert Gram-centimeters squared to Kilogram-centimeters squared

Formula

To convert Gram-centimeters squared (g·cm²) to Kilogram-centimeters squared (kg·cm²): multiply by 1.0000e-3

Step-by-Step

  1. Start with your value in Gram-centimeters squared (g·cm²).
  2. Multiply by 1.0000e-3 to perform the conversion.
  3. The result is your value expressed in Kilogram-centimeters squared (kg·cm²).

Conversion Factor

1 g·cm² = 0.001 kg·cm²

Reverse Factor

1 kg·cm² = 1000 g·cm²

Worked Example

Convert 25 Gram-centimeters squared to Kilogram-centimeters squared: 25 g·cm² = 0.025 kg·cm²

About Gram-centimeter squared (g·cm²)

A CGS mass-moment-of-inertia unit equal to exactly 10⁻⁷ kg·m² = 0.1 mg·m². Used for very small precision components where SI units would produce many leading zeros: balance-wheel and escapement inertia in mechanical wristwatch movements (a typical Swiss-made automatic balance wheel has rotor inertia ~10⁻² g·cm²; this drives the resonant frequency that sets watch accuracy), instrument-grade gyroscope rotors (mechanical heading reference gyros and rate-integrating gyros in aerospace inertial-navigation systems before the MEMS transition), precision indexing wheels in optical encoders (Heidenhain, Renishaw encoder discs), MEMS resonator inertia in vibratory gyroscopes per IEEE 1431 silicon-resonator characterization, and historical-era optical precision instruments from European manufacturers (Zeiss, Leica, Carl Zeiss Jena pre-1970s) which still appear in vintage equipment overhaul references. Convert g·cm² to kg·m² by dividing by 10⁷; to lb·in² by dividing by 2,926.

About Kilogram-centimeter squared (kg·cm²)

A mass-moment-of-inertia unit equal to exactly 10⁻⁴ kg·m². Used in industry for small rotating components where typical values would fall in awkwardly-small kg·m² values: electric motor rotors (NEMA / IEC motor nameplates from Japanese and Korean manufacturers commonly list rotor inertia in kg·cm² — a typical 1 kW industrial motor rotor 100-500 kg·cm² = 0.01-0.05 kg·m²), servo and stepper-motor shafts (Yaskawa, Mitsubishi, Panasonic servo datasheets — typical 750 W AC servo ~5-15 kg·cm²), small flywheels for energy-harvest applications, gyroscope and MEMS devices, and precision indexing-wheel mechanisms in machine tools. The kg·cm² is also the dominant inertia unit in Korean and Chinese-built machinery technical documentation for export markets. Convert kg·cm² to kg·m² by dividing by 10,000; to lb·in² by dividing by 0.2926; to g·cm² by multiplying by 1,000.

Quick Facts

  • 1 Gram-centimeter squared equals 0.001 Kilogram-centimeters squared
  • 1 Kilogram-centimeter squared equals 1000 Gram-centimeters squared
  • Gram-centimeter squared is a unit of mass moment of inertia
  • Kilogram-centimeter squared is a unit of mass moment of inertia
  • This conversion is commonly used in rotational dynamics, flywheel design, and robotics
  • The Gram-centimeter squared belongs to the metric system

Common Gram-centimeter squared to Kilogram-centimeter squared Conversions

Gram-centimeters squared (g·cm²)Kilogram-centimeters squared (kg·cm²)
0.010.00001
0.10.0001
0.250.00025
0.50.0005
10.001
20.002
30.003
50.005
100.01
150.015
200.02
250.025
500.05
750.075
1000.1
2500.25
5000.5
10001
50005
1000010

Understanding Gram-centimeters squared

The Gram-centimeter squared (symbol: g·cm²) is a unit of mass moment of inertia. A CGS mass-moment-of-inertia unit equal to exactly 10⁻⁷ kg·m² = 0.1 mg·m². Used for very small precision components where SI units would produce many leading zeros: balance-wheel and escapement inertia in mechanical wristwatch movements (a typical Swiss-made automatic balance wheel has rotor inertia ~10⁻² g·cm²; this drives the resonant frequency that sets watch accuracy), instrument-grade gyroscope rotors (mechanical heading reference gyros and rate-integrating gyros in aerospace inertial-navigation systems before the MEMS transition), precision indexing wheels in optical encoders (Heidenhain, Renishaw encoder discs), MEMS resonator inertia in vibratory gyroscopes per IEEE 1431 silicon-resonator characterization, and historical-era optical precision instruments from European manufacturers (Zeiss, Leica, Carl Zeiss Jena pre-1970s) which still appear in vintage equipment overhaul references. Convert g·cm² to kg·m² by dividing by 10⁷; to lb·in² by dividing by 2,926.

It belongs to the metric measurement system.

Gram-centimeters squared are commonly used in rotational dynamics, flywheel design, and robotics.

Understanding Kilogram-centimeters squared

The Kilogram-centimeter squared (symbol: kg·cm²) is a unit of mass moment of inertia. A mass-moment-of-inertia unit equal to exactly 10⁻⁴ kg·m². Used in industry for small rotating components where typical values would fall in awkwardly-small kg·m² values: electric motor rotors (NEMA / IEC motor nameplates from Japanese and Korean manufacturers commonly list rotor inertia in kg·cm² — a typical 1 kW industrial motor rotor 100-500 kg·cm² = 0.01-0.05 kg·m²), servo and stepper-motor shafts (Yaskawa, Mitsubishi, Panasonic servo datasheets — typical 750 W AC servo ~5-15 kg·cm²), small flywheels for energy-harvest applications, gyroscope and MEMS devices, and precision indexing-wheel mechanisms in machine tools. The kg·cm² is also the dominant inertia unit in Korean and Chinese-built machinery technical documentation for export markets. Convert kg·cm² to kg·m² by dividing by 10,000; to lb·in² by dividing by 0.2926; to g·cm² by multiplying by 1,000.

It belongs to the metric measurement system.

Kilogram-centimeters squared are commonly used in rotational dynamics, flywheel design, and robotics.

Why Convert Gram-centimeters squared to Kilogram-centimeters squared?

Converting between Gram-centimeters squared and Kilogram-centimeters squared is a frequent requirement for engineers, scientists, and students working with mass moment of inertia values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate mass moment of inertia conversion is essential.

Frequently Asked Questions

How do I convert Gram-centimeters squared to Kilogram-centimeters squared?

A CGS mass-moment-of-inertia unit equal to exactly 10⁻⁷ kg·m² = 0. To convert Gram-centimeters squared to Kilogram-centimeters squared, multiply by 1.0000e-3. For example, 25 g·cm² equals 0.025 kg·cm².

How many Kilogram-centimeters squared are in 1 Gram-centimeter squared?

There are 0.001 Kilogram-centimeters squared in 1 Gram-centimeter squared.

How many Gram-centimeters squared are in 1 Kilogram-centimeter squared?

There are 1000 Gram-centimeters squared in 1 Kilogram-centimeter squared.

What is the formula for Gram-centimeter squared to Kilogram-centimeter squared conversion?

The formula is: multiply by 1.0000e-3. This means 1 g·cm² = 0.001 kg·cm².

Is a Gram-centimeter squared bigger than a Kilogram-centimeter squared?

Yes. One Gram-centimeter squared is larger than one Kilogram-centimeter squared because 1 g·cm² equals 0.001 kg·cm², which is less than 1.

When do you need to convert between Gram-centimeters squared and Kilogram-centimeters squared?

A mass-moment-of-inertia unit equal to exactly 10⁻⁴ kg·m². Gram-centimeter squared and Kilogram-centimeter squared are both mass moment units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.

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