Convert Kilogram-centimeters squared to Pound-inches squared
Instantly convert Kilogram-centimeters squared (kg·cm²) to Pound-inches squared (lb·in²) with our free online calculator.
Formula: kg·cm² to lb·in² — multiply by 0.341717
Reference Table
| Kilogram-centimeters squared (kg·cm²) | Pound-inches squared (lb·in²) |
|---|---|
| 1 | 0.341717 |
| 5 | 1.70858 |
| 10 | 3.41717 |
| 25 | 8.54292 |
| 50 | 17.0858 |
| 100 | 34.1717 |
How to Convert Kilogram-centimeters squared to Pound-inches squared
Formula
To convert Kilogram-centimeters squared (kg·cm²) to Pound-inches squared (lb·in²): multiply by 0.341717
Step-by-Step
- Start with your value in Kilogram-centimeters squared (kg·cm²).
- Multiply by 0.341717 to perform the conversion.
- The result is your value expressed in Pound-inches squared (lb·in²).
Conversion Factor
1 kg·cm² = 0.341717 lb·in²
Reverse Factor
1 lb·in² = 2.9264 kg·cm²
Worked Example
Convert 25 Kilogram-centimeters squared to Pound-inches squared: 25 kg·cm² = 8.54292 lb·in²
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.
About Pound-inch squared (lb·in²)
An imperial mass-moment-of-inertia unit using pound-mass per inch² (≈ 2.926 × 10⁻⁴ kg·m² per NIST SP 811 = exactly 1/144 of lb·ft² since 1 ft² = 144 in²). Used for smaller rotating components in US mechanical engineering where lb·ft² would produce awkwardly-small decimal values: servo and stepper motor shafts (US-built servos from Kollmorgen, Allen-Bradley, Parker often spec rotor inertia in lb·in² for export-compatible documentation), small flywheels in instrumentation and precision-mechanism design, engine valvetrain components (poppet-valve + spring + retainer + rocker arm assembly inertia for high-RPM engine valve-bounce analysis per SAE J1857), aerospace small-component inertia in legacy US-edition stress reports, and CNC-spindle drive-train inertia for servo-tuning calculations. Convert lb·in² to kg·m² by multiplying by 2.926 × 10⁻⁴; to lb·ft² by dividing by 144; to kg·cm² by multiplying by 2.926.
Quick Facts
- 1 Kilogram-centimeter squared equals 0.341717 Pound-inches squared
- 1 Pound-inch squared equals 2.9264 Kilogram-centimeters squared
- Kilogram-centimeter squared is a unit of mass moment of inertia
- Pound-inch squared is a unit of mass moment of inertia
- This conversion is commonly used in rotational dynamics, flywheel design, and robotics
- The Kilogram-centimeter squared belongs to the metric system
- The Pound-inch squared belongs to the imperial system
Common Kilogram-centimeter squared to Pound-inch squared Conversions
| Kilogram-centimeters squared (kg·cm²) | Pound-inches squared (lb·in²) |
|---|---|
| 0.01 | 0.00341717 |
| 0.1 | 0.0341717 |
| 0.25 | 0.0854292 |
| 0.5 | 0.170858 |
| 1 | 0.341717 |
| 2 | 0.683434 |
| 3 | 1.02515 |
| 5 | 1.70858 |
| 10 | 3.41717 |
| 15 | 5.12575 |
| 20 | 6.83434 |
| 25 | 8.54292 |
| 50 | 17.0858 |
| 75 | 25.6288 |
| 100 | 34.1717 |
| 250 | 85.4292 |
| 500 | 170.858 |
| 1000 | 341.717 |
| 5000 | 1708.58 |
| 10000 | 3417.17 |
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.
Understanding Pound-inches squared
The Pound-inch squared (symbol: lb·in²) is a unit of mass moment of inertia. An imperial mass-moment-of-inertia unit using pound-mass per inch² (≈ 2.926 × 10⁻⁴ kg·m² per NIST SP 811 = exactly 1/144 of lb·ft² since 1 ft² = 144 in²). Used for smaller rotating components in US mechanical engineering where lb·ft² would produce awkwardly-small decimal values: servo and stepper motor shafts (US-built servos from Kollmorgen, Allen-Bradley, Parker often spec rotor inertia in lb·in² for export-compatible documentation), small flywheels in instrumentation and precision-mechanism design, engine valvetrain components (poppet-valve + spring + retainer + rocker arm assembly inertia for high-RPM engine valve-bounce analysis per SAE J1857), aerospace small-component inertia in legacy US-edition stress reports, and CNC-spindle drive-train inertia for servo-tuning calculations. Convert lb·in² to kg·m² by multiplying by 2.926 × 10⁻⁴; to lb·ft² by dividing by 144; to kg·cm² by multiplying by 2.926.
It belongs to the imperial measurement system.
Pound-inches squared are commonly used in rotational dynamics, flywheel design, and robotics.
Why Convert Kilogram-centimeters squared to Pound-inches squared?
Converting between Kilogram-centimeters squared and Pound-inches 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 Kilogram-centimeters squared to Pound-inches squared?
A mass-moment-of-inertia unit equal to exactly 10⁻⁴ kg·m². To convert Kilogram-centimeters squared to Pound-inches squared, multiply by 0.341717. For example, 25 kg·cm² equals 8.54292 lb·in².
How many Pound-inches squared are in 1 Kilogram-centimeter squared?
There are 0.341717 Pound-inches squared in 1 Kilogram-centimeter squared.
How many Kilogram-centimeters squared are in 1 Pound-inch squared?
There are 2.9264 Kilogram-centimeters squared in 1 Pound-inch squared.
What is the formula for Kilogram-centimeter squared to Pound-inch squared conversion?
The formula is: multiply by 0.341717. This means 1 kg·cm² = 0.341717 lb·in².
Is a Kilogram-centimeter squared bigger than a Pound-inch squared?
Yes. One Kilogram-centimeter squared is larger than one Pound-inch squared because 1 kg·cm² equals 0.341717 lb·in², which is less than 1.
When do you need to convert between Kilogram-centimeters squared and Pound-inches squared?
An imperial mass-moment-of-inertia unit using pound-mass per inch² (≈ 2. Kilogram-centimeter squared and Pound-inch 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.